Inhalation of dust causes irritation of nose and throat. Any drug that contains the word hydromorphone. This compound is insoluble in water and acids, showing little reactivity. WebZinc Sulfate is a colorless, odorless, crystalline powder. Slow decomposition in a large volume of water or alcohol, Decomposes to release acetic acid, hydrogen, Harmful, will increase the boron concentration in soil or water, Melts; Decomposes releasing carbon dioxide and water vapor at high temperatures, Safe, nourishment for organisms, though harmful for bacteria, Recycling; Traces of stainless steel waste don't require chemical neutralization as SS is sufficiently inert that it can't do any significant damage to the environment. For each gram of barium salt, add 15 mL of 10% sodium sulfate solution. Filter off green precipitate. Conversion to mercury(II) sulfide; Taken to hazardous waste disposal centers; Decomposes over 165 C to yield a residue known as "Pharaoh's snake", as well as sulfur oxides and mercury vapors, Will give off carbon dioxide and water vapor, as well as some formaldehyde if not enough oxygen, Decomposes giving off carbon oxides, sulfur oxides, nitrogen, water, soot, VOCs, May be harmful to microorganisms, fauna and water bodies, Reduction with a reducing agent, such as sodium sulfite; Test for peroxides after neutralization; If no peroxides present, incineration or other proper disposal method, Dangerous to wildlife in high concentrations; Occurs naturally in low concentrations, Decomposes giving off carbon dioxide, nitrogen, water vapors, VOCs, PAHs, Low toxicity to environment in small amounts, Classified as hazardous to environment and ground water, Decomposes giving off carbon dioxide, sulfur oxides, nitrogen, water, hydrogen chloride vapors, VOCs, PAHs and other harmful compounds, May be harmful to microbial life, fauna and water bodies, Will burn at high temperatures, releasing carbon oxides, water vapors and soot, Oils float on water bodies and inhibit the cellular breathing of many organisms, Mixed with a flammable solvent and burned, Decomposes, releases combustion gasses, VOCs, Dangerous to wildlife due to nickel and chromium content, Decomposes giving off carbon oxides, nitrogen, water, soot, VOCs, Oxidation with an oxidizing solution, such as Fenton's reagent, piranha solution or chromic acid, Decomposes, releasing carbon oxides, nitrogen oxides, water vapors, PAHs, soot, Possibly harmful for the environment; little data available on its environmental effects, Generates carbon oxides, water vapor, sulfur oxides, soot and nitrogen, Harmful to wildlife; Nitrification inhibitor, slows the nitrification of ammonia, Mixed with a more flammable solvent, followed by incineration outside or in an incinerator; Oxidation with Fenton's reagent under controlled conditions, Gives off toxic fumes or carbon dioxide, nitrogen oxides, VOCs, Long-chained alcohols, diluted with an alkane, Pyrophoric, both alloy and reaction products corrosive to wildlife, Incineration, best done in an incinerator with afterburner; Oxidation with Fenton's reagent, Generates carbon dioxide, water vapors, carbon monoxide, soot, VOCs, Poured down the drain; oxidized with a strong oxidizing solution, neutralized then poured down the drain, May be harmful to microorganisms, fish in water bodies, Pyrolysis, followed by recycling of Nd slag, Gives off carbon oxides, leaving neodymium oxides and hydroxides behind, Presents toxicity to wildlife due to the oxalate group, Sublimes and decomposes, releasing carbon oxides, water vapors, soot, pyridine derivatives, Low toxicity, essential nutrient for life, Nickel and chromium are harmful for wildlife, Nickel is very toxic for animals; hydrazine is very toxic to environment, Strong dilution in water, followed by CAREFUL addition of a diluted base; precipitation of nickel, Nickel is harmful for animals; hydrazine is very toxic to environment; perchlorates are toxic for animals and plants, Precipitation with a soluble hydroxide; precipitate should be taken to disposal centers, Gives off nitrogen oxide fumes, leaving behind nickel oxide slag, Reduction of perchlorate to chloride; Precipitation with a soluble hydroxide; precipitate should be taken to disposal centers, Gives off chlorine oxide fumes, leaving behind nickel oxide slag; may decompose violently if organic contaminant present, Gives off sulfur oxide fumes, leaving behind nickel oxide slag, Generates carbon oxides, water vapors, soot, VOCs and toxic nicotine vapors, Deadly to small animals, toxic and addictive to large organisms; absorbs through skin; biodegradable, Any base, hydroxide, carbonate, bicarbonate, Boils off, while also giving off nitrogen dioxide fumes, Corrosive to organisms and rocks; its salts are excellent nitrogen source for plants, Oxidizes to nitrogen dioxide in air, which is highly toxic and corrosive; creates acid rain, Generates carbon oxides, water vapor, soot and nitrogen, Controlled incineration; Hydrolysis with aqueous alkali hydroxide, Breaks down to release combustion gasses and self-ignites at 160 C, No; however it can be converted to fertilizer by adding aqueous ammonia, Breaks down in the presence of water to give nitric acid, which, after neutralization becomes source of nitrogen for plants, Burns giving off carbon oxides, water vapors and nitrogen gas, Bubbling through an alkali solution, peroxide solution, Reacts with air moisture to generate nitric acid and contributes to the acid rain; extremely toxic to animals and plants, Photolysis; Hydrolysis with hot water; Reduction with sodium thiosulfate, Detonation, giving off corrosive iodine vapors, The iodine vapors it gives off during decomposition are dangerous to organisms in short term, Safe, nitrogen source for plants, used as fertilizer; Guanidine derivates occur in guano, Slow addition to water, followed by neutralization with dil. An alcohol burner can be used to burn these liquids. Zinc compounds can be refined to zinc metal using electrowinning. After you diluted the acid, dissolve the base in water or, if it's insoluble, add just enough water to turn it into a suspension. at high temperatures, Unless contaminated, good source of zinc for plants, though a bit too acidic; may lower soil pH, Breaks down to zinc oxide and carbon oxide at high temperatures, Unless contaminated, good source of zinc for plants, though a bit too alkaline, Gives off hydrochloric acid fumes if moist, Chlorides are dangerous for chloride-sensitive plants in large quantities, Sodium, potassium or ammonium carbonate/bicarbonate to precipitate zinc carbonate which is inert; recovery of alkali nitrates, dilution of zinc carbonate and poured down the drain, Decomposes to zinc oxide, releasing nitrogen dioxide and oxigen, May pose a threat to aquatic life in large quantities; may cause unwanted algal bloom; source of zinc and nitrogen to plants, Not required; Weak acids can be used to dissolve zinc oxide stains to soluble zinc compounds, Turns the oxide yellow at high temperatures; process is reversible, May pose a threat to aquatic life in large quantities, Precipitation with a soluble hydroxide; Reduction of perchlorate to chloride, Gives off chlorine oxide fumes, leaving behind zinc oxide slag; may decompose violently if organic contaminant present, Source of zinc and phosphorus for wildlife, Not always required; Zinc metal can be recovered through electrowinning and the diluted sulfuric acid neutralized with a base, Unless contaminated, is a good source of zinc for plants, Dissolving it in water, followed by precipitation of zirconium dioxide by adding an alkali, Potentially harmful; Nitrates may serve as nourishment for plants; Zirconium displays moderate toxicity, Decomposes releasing HCl and water vapors. The best disposal option is to find a drug take back location, which may be found in retail, hospital, or clinic pharmacies; and/or law enforcement facilities. Zinc Sulfate -> 10-20% Some MSDS sheets recommend that rare earths be converted to their oxalates or carbonates and disposed of in the trash. Traceability NIST SRM. Hydration, followed by recycling, dumping in trash, ground, etc. Efflorescent in air. sodium/potassium/magnesium sulfate, Not useful, converts to barium peroxide, then reverts back to barium oxide, Reduction with metallic iron under UV light in the absence of air; precipitation to barium sulfate, using a soluble sulfate, Oxidizes flammable materials, burning them; alone decomposes above 505 C, Decomposes to manganese dioxide at high temperatures, The resulting manganese and barium oxides from the decomposition can be toxic if ingested by animals, Peroxides are deadly to small animals; soluble barium salts are toxic, Low toxicity to wildlife due to its poor solubility in water; occurs naturally as the mineral barite, May be converted to lead(II) carbonate; should be taken to disposal centers, Toxic to environment due to lead and Cr(VI) content, Careful and controlled destruction using an oxidizing solution; insoluble lead wastes should be taken to hazardous waste disposal centers, Extremely toxic to all organisms; lead is a known neurotoxin, Not required, can be dumped in trash or ground, Safe, biodegradable; nourishment for some organisms, Incineration; Oxidation to benzoic acid; Oxidation with, Generates carbon oxides, water vapors, soot, Low toxicity, but avoid releasing in environment, Avoid releasing in environment, effects unknown, Breaks down to carbon oxides, water vapors, soot; may give off benzene vapors, Decarboxylation with some compounds, such as ascorbic acid, may release traces of benzene; otherwise safe, occurs naturally. Aluminium compounds generally should not be disposed in the sewage. Incineration is attractive as it's a good method of getting rid of wastes, but unless you're using an incinerator, some material will not be destroyed and instead it will be scattered in air. (Sigma-Aldrich SDS) Collect in aluminium hydroxide waste Waste containing cyanide, either from gold refining or from organic extractions of alkaloids from cyanide containing plants, must be neutralized with bleach or hydrogen peroxide, to turn them into less harmful cyanates. Keep the copper carbonate for other experiments or bin it as it is basically inert. Acids are best neutralized with a base, such as carbonate/bicarbonate, hydroxide (calcium hydroxide e.g.) For the disposal of large amounts of hazardous reagents or for special reagents, ask the help of professional hazardous chemical disposal entities. Examples of these are sulfide, sulfate, chloride, chlorate, nitrate, nitrite, thiocyanate.[1]. Salts of hydrochloric, sulfuric, phosphoric acids can be further diluted then safely poured down the drain, or recycled if you want. f Eliminate all ignition sources. Inorganic anions, based on halogens, sulfur, phosphorus, nitrogen, carbon and silicon can be flushed down the drain with lots of water. Sweep up spill and place in sealed bag or container for disposal. This wiki will NOT take any responsibility (legal or other) for any (failed) attempts at neutralizing hazardous reagents. WebPlace the mixture in a container such as a sealed plastic bag; Throw away the container in your trash at home; and Delete all personal information on the prescription label of Will lead to extremely dangerous and corrosive fumes, which will decompose, resulting iodine vapors, Corrosive to organisms and rocks; Iodides have little toxicity to wildlife, Diluted solutions will break down harmlessly; Very concentrated solutions may explode if contaminated, Deadly for microbial life, extremely toxic for small animals and aquatic life, Very toxic for animals at high concentrations; Occurs naturally, but at low concentrations, Mixed with a more flammable solvent and safely incinerated; Controlled oxidation with chromic acid, piranha solution, Fenton's reagent, Occurs naturally; toxic and possibly carcinogen in high doses, Mixed with a flammable solvent and incinerated; Diluted in water and poured down the drain, Burns at high temperatures, releasing carbon dioxide, water vapors, acrolein, Little environmental impact from the literature available, Reduction with Zn/HCl; Dilution followed by decomposition with ferrous or ferric salts; Addition of ketone or aldehyde then heated to decompose, Dilution followed by addition of ketone or aldehyde then heated to decompose; Reduction with Zn/HCl, Decomposes releasing HCl and nitrogen oxides, Dilution followed by decomposition with ferrous or ferric salts; Addition of ketone or aldehyde then heated to decompose; Reduction with Zn/HCl, Dilution followed by precipitation of perchlorate with potassium ions, filtration then neutralization of hydroxylamine via addition of ketone or aldehyde, then heated to decompose; Reduction with Zn/HCl, Decomposes releasing nitrogen oxides, nitrogen, HCl, water vapors; explodes at high temperature, Decomposes releasing sulfur and nitrogen oxides, Any reducing agent, such as sodium metabisulfite, bisulfite, sulfite, thiosulfate, Decomposes to chlorine, chloric acid, hydrogen chloride, Very toxic and corrosive to organisms, especially aquatic ones, Decomposes to phosphoric acid, phosphorous acid, phosphine, Harmful and corrosive to organisms, especially aquatic ones, Yields carbon oxides, water vapors, leaves ash behind, Low toxicity; silver and copper-based inks may be harmful, Neutralization with potassium, calcium bases, followed by reduction with a suitable reducing agent to iodide; thiosulfate added to remove any free iodine, Decomposes at high temperatures to iodine pentoxide which further decomposes above 300 C to iodine and oxygen, Toxic to wildlife, both animals and plants, Neutralization with a solution sodium thiosulfate, Decomposes above melting point, releasing iodine and oxygen above 300 C, Neutralization with a cooled diluted solution of sodium hydroxide and sodium thiosulfate, Decomposes above melting point, releasing ICl and chlorine, Destruction with aqueous sodium hydroxide, Melts and decomposes near boiling point, releasing iodine, hydrogen iodine fumes, Dangerous to wildlife, especially if ingested; small animals are harmed easily, Gives off hydrogen chloride fumes in air and or moisture, Not always required; Ammonium hydroxide, carbonate/bicarbonate, Breaks down to iron(III) oxide and gives off sulfur dioxide and trioxide fumes, Safe, used in agriculture as iron supplement; May cause algal bloom if released in water bodies, Results in iron(III) oxide in the presence of air, Calcium hydroxide (slaked lime), followed by dilution, Gives off nitrogen oxide fumes, leaving behind iron(III) oxide, Harmful to environment in large and concentrated amounts; Diluted iron nitrate is a good source of iron and nitrogen for plants, Safe, sometimes used in agriculture as iron supplement; May cause algal bloom if released in water bodies, Breaks down into iron(III) oxide and gives off sulfur oxides, Incineration; oxidation with peroxide; both done outside, Decomposes, releasing copious amounts of iron oxide fumes, Flammable, gives off carbon dioxide and water vapor, Photolysis; Hydrolysis with cold sodium hydroxide solution, Neutralization with sodium hydroxide, followed by incineration, Neutralization with any acid; incineration; oxidation with Fenton's reagent, Flammable, burns to release carbon dioxide, water vapors and nitrogen; nitrogen dioxide may also be released, Toxic to all wildlife and especially aquatic life, Controlled oxidation with Fenton's reagent, Occurs naturally; toxic to microorganisms and other plants, Burns in the presence of air, to give off carbon dioxide and water vapors, Dangerous for wildlife and aquatic environment, Immersion underwater to prevent self-ignition, followed by adding a flocculating or a thickening agent to trap the phosphorus inside; resulting mass should be incinerated in a special incinerator, Pyrophoric, releases toxic sulfur dioxide and phosphorus pentoxide fumes, Pyrophoric, toxic and corrosive to the environment, Alkali carbonate or hydroxide; Lead precipitate should be taken to disposal facilities, Results in lead oxides; Yields carbon oxides, water vapors, Extremely toxic to all life, due to the good solubility of lead acetate, Nitrous acid, ammonium acetate, sodium dichromate, Decomposes to lead/lead(II) oxide releasing nitrogen gas and may explode during decomposition, Breaks down to its component oxides at high temperatures, Precipitation with a sulfide, carbonate or oxalate; wastes are to be taken to hazardous waste disposal centers, Breaks down in to lead oxide and releases nitrogen dioxide fumes, Extremely toxic to wildlife due to its good solubility in water, Decomposes around 500-1000 C in air to yield sulfur and lead oxides and lead metal fumes, Occurs naturally; Extremely toxic to the environment and all life, Precipitate with an excess of carbonate, oxalate or a sulfide; waste is to be taken to hazardous waste disposal centers, Results in lead oxide and acetic acid, carbon dioxide, water vapor, Corrosive and very toxic to all organisms, Incineration; oxidation; not always required, Results in carbon dioxide, water vapor, soot, Neutralization with an alkali or carbonate solution; recycling of lithium ions, Corrosive to organisms, will increase the aluminium concentration in soil or water, Neutralization with an alkali or carbonate solution; Slow addition in a large volume of water or alcohol;Recycling of lithium ions, Corrosive to organisms, will increase the boron concentration in soil or water, Hydrated form will give some oxychloride salt, Increases the chloride concentration in soil as well as lithium, Neutralization with a concentrated alkali or carbonate solution, alcohols, long chain alcohols are preferred; best performed in an open area, Any acid, carbon dioxide, sulfur dioxide; recycling is a good choice, Breaks down to lithium oxide and water vapor, Lithium has little effect to plant life, but will affect the nervous system of animals when ingested in excess, Any reducing agent, such as sodium metabisulfite, bisulfite, sulfite, thiosulfate; Hydrogen peroxide, Corrosive and harmful to organisms, especially aquatic ones, Precipitation; recycling; mixed with a combustible material and ignited, Breaks down to lithium oxide and nitrogen oxides, Nitrate is a source of nitrogen for plants; lithium has little effect to plant life, but will affect the nervous system of animals when ingested in excess, Oxidation with sodium percarbonate, oxygen, ozone to nitrate; Thermal decomposition followed by conversion to lithium carbonate or sulfate, Decomposes to form lithium oxide/hydroxide and releases nitrogen oxides fumes, Unlike nitrates, nitrites are poor source of nitrogen for plants; Lithium may be harmful for the central nervous system; Nitrites are toxic for most animals, Not required; can be poured down the drain, Burns releasing aluminium and magnesium oxides, Not useful; breaks down into magnesium oxide and carbon dioxide at high temperatures, May increase the magnesium and chloride content in the soil significantly, Not always required; any acid can be used, though a weak one is more economical, Decomposes at 350 C to magnesium oxide and releases water vapors, Raises the soil pH; source of magnesium for plants, Not required; an aqueous carbonate solution, like potassium carbonate can be used if necessary, Decomposes above 330 C to give off oxygen and nitrogen oxides, Good source of nitrogen and magnesium for plants (fertilizer); May cause algal bloom in water bodies, Will dehydrate when heated; Gives off sulfur oxides at very high temperature, Maybe be source of food for some organisms, Aqueous solutions or suspensions of base, carbonate, bicarbonate, Breaks down to manganese dioxide and gives off ozone; may explode, Burns organic material on contact, even wet organic material, Precipitated to managnese dioxide; Taken to waste disposal facilities; Dumped in trash, Melts; Releases carbon dioxide and water vapor at high temperatures, Cannot be digested by most organisms, but has no dangerous effects on wildlife, Cooled aqueous solution of diluted sodium hydroxide, added in excess, Safe, biodegradable; Occurs naturally in various plants, like peppermint, Decomposes over 580 C to yield sulfur oxides and mercury vapors, Conversion to cinnabar; Taken to hazardous waste disposal centers, Explodes, giving off carbon oxides, nitrogen gas and hazardous mercury vapors, Decomposes, releasing nitrogen dioxide, oxygen, mercury(II) oxide, mercury vapors, Decomposes over 500 C to yield mercury vapors, Taken to hazardous waste disposal centers; Conversion to cinnabar, Decomposes over 450 C to yield sulfur oxides and mercury vapors. in the table below are harmless and even useful in agriculture as fertilizers. The soluble salts of halogen acids and oxoacids (except perchloric and chloric acids) can be safely poured down the drain. Office of Response and Restoration, alkali, Decomposes to molybdenum oxides and sodium hydroxide/oxide, Not useful; may convert to sodium nitrite, While it is a good source of nitrogen for plants, high levels of sodium are generally undesired in soils, Oxidation with sodium percarbonate, oxygen, ozone to nitrate; Thermal decomposition followed by conversion to sodium carbonate or sulfate, Decomposes to form sodium oxide/hydroxide and releases nitrogen oxides fumes, Unlike nitrates, nitrites are poor source of nitrogen for plants; High levels of sodium are generally undesired in soils; Nitrites are toxic for most animals, Not required for small amounts, dumped in trash. It's not recommended to use zinc compounds obtained from technical sources as zinc supplements for soil or livestock, as it may contain traces of heavy metals, such as cadmium. Chromic acid and it's derivatives can also be used to destroy hazardous chemical compounds, as it neutralizes them to carbon dioxide and water. (USCG, 1999). The decomposition is highly exothermic and the resulting smoke is very dangerous. Alkali metals are minimally toxic as their salts and may be dumped down the drain. Bleach (best bet); hydrogen peroxide; oxygen; ozone; Extremely toxic for all organisms, used to kill pests, Neutralize it first, good source of phosphorus, unless contaminated, Deadly to small animals; excess in water bodies may cause algal bloom, Suspension of calcium hydroxide, sodium thiosulfate, cooled; PBr, Breaks down to bromine, hydrogen bromide, phosphorus tribromide and phosphorous acids in the presence of air/moisture, Corrosive and deadly to all wildlife; Lowers soil pH; Corrosive to rocks, soil, Suspension of calcium hydroxide, cooled; PCl, Boils and breaks down to chlorine, hydrogen chloride and phosphorous acids in the presence of air/moisture, Will volatilize at very high temperatures, No, reaction with water is highly exothermic and may generate acidic steam. Small quantities. The information relates only to the However, because only small amounts of compound gets neutralized at a time, this process takes a while. You probably dont even need to filter it once it has reacted with the sodium bicarbonate, just pour it away. Alkali hydroxides can be left in open air to absorb carbon dioxide as well as corrosive and unpleasant gases, forming carbonates and salts. Sodium Acetate. Place in a separate labeled container for recycling or disposal. NaOH to hydrolyze butyl derivates to butanol; Separation of compounds, incineration of butanol; Tin waste can be dumped in trash or taken to disposal centers, Decomposes above 265 C, may ignite in open air above 107 C in the presence of a flame, Gives off hydrochloric acid fumes, leaving copper oxide behind, Incineration, done outside; Controlled oxidation with Fenton's reagent, Displays moderate toxicity to aquatic life, Decomposes to release sulfur dioxide and carbon dioxide, Not useful; Decomposes to release sulfur dioxide and chlorine, Generates carbon oxides, water vapor, sulfur oxides, soot, sulfur, Pyrolysis, preferably in an oxidizing atmosphere; strong dilution and poured down the drain, Generates carbon oxides, sulfur oxides, water vapors and nitrogen, Excess base, carbonate, bicarbonate; Should be taken to waste disposal centers, Gives off hydrochloric acid fumes in the presence of moisture, Any base, carbonate, bicarbonate; Should be taken to waste disposal centers, Gives off hydrochloric acid fumes in moist air, Not useful; Fuses in the presence of alkaline and alkaline-earth oxides and hydroxides to titanates, May lead to staining water bodies and soil in a white color, Dissolving it in water, followed by precipitation of titanium dioxide by adding an alkali, Potentially harmful; Nitrates may serve as nourishment for plants; Titanium compounds show moderate toxicity, Not useful; May react with alkaline and alkaline-earth oxides and hydroxides to titanates, CAREFUL addition to a diluted aqueous alkaline solution, Sodium hydroxide; Oxidation with Fenton's reagent, Sodium thiosulfate, sulfite, bisulfite, metabisulfite, Diluted with another solvent, followed by incineration, Burns in air, releasing carbon dioxide, water vapors, soot and acrid fumes, Low toxicity to organisms, may harm water bodies, Diluted with another solvent, followed by incineration; Neutralization with an acid and destroyed via oxidation, Toxic to most lifeforms, dangerous to water bodies, Corrosive and poisonous to organisms; does not readily degrade in environment, but does not bioaccumulate, Decomposes and may ignite at high temperatures, releasing carbon and phopshorus oxides, Burns in air releasing carbon and phosphorus oxides, Extremely toxic to organisms; Other environmental effects unknown, Strong dilution, followed by addition of dil. Absorb with suitable material and containerize for disposal with a RCRA-approved waste disposal facility. Slowly add the base in the diluted acid, and watch out for foaming or, if it's a strong acid, boiling. In the interest of keeping lab costs low, though, it may be a good idea to look into ways to recycle and recover chemicals such as solvents, which can be reclaimed by distillation. Wear protective gloves/protective clothing/eye protection/face protection. Place in a separate labeled container for recycling or disposal. Non-hydrated cement is hazardous to environment, animals and plants; hydrated solid is generally non-toxic; Production of cement is extremely harmful to environment, Pyrolysis, followed by taking the resulting slag to disposal facilities, Gives off carbon oxides and water vapors, leaving potassium antimony oxide slag behind, Above 292 C decomposes to potassium carbonate and above 891 C will yield potassium oxide and carbon dioxide, which is quickly reabsorbed as it cools, Excess may increase the concentration of potassium in the dumping area, Hydrolysis; neutralization with hydrogen peroxide, Breaks down to its constituent oxides, both dry and as solution, Dangerous to organisms due to its strong oxidizing properties; high amounts of bismuth are toxic, Decomposes to high temperatures releasing water vapors and sulfur trioxide, Decreases the soil pH, high levels of sodium are toxic for plants, Bleach or hydrogen peroxide can be used if desired, Decomposes to release sulfur dioxide and water vapors, High levels of sulfur dioxide are toxic for organisms, Decomposes, releasing combustion gasses, carbon oxides, water vapors, Safe, low toxicity; occurs during wine fermentation, Decomposes to potassium bromide and oxygen, May give off bromine vapors in the presence of water at high temperatures, Bromide ions pose little toxicity to wildlife in small amounts, No, very high temperatures decompose it to potassium oxide and carbon dioxide, which is quickly reabsorbed as it cools, Excess may increase the soil level of potassium in the dumping area, Reduction with metabisulfite, sulfite or bisulfite; a mixture of sulfuric acid and ferric ammonium sulfate can also be used, Melts and disproportionates to potassium perchlorate and potassium chloride, Small amounts can be dumped, as household bleach already contains a small percentage of chlorates, especially if it's old; Do not dump large quantities, Toxic to plants, was used as a weedkiller in the past, Yes, unless the soil is chloride sensitive, Presence of chlorides may have a harmful effect to some plants, Decomposes above 290 C, releasing oxygen, Cr(VI) is a potent carcinogen and very toxic to organisms, Decomposes above 1000 C, releasing oxygen, Oxidation with hydrogen peroxide, bleach, sodium thiosulfate to less harmful compounds, continued by oxidation to carbon dioxide and nitrogen gas, Melts and may oxidize in oxygen-rich atmosphere, Breaks down to iron(III) oxide and potassium hydroxide, best in the presence of moisture, Not required for small amounts, dumped in trash, Breaks down to iron and potassium nitrides/oxides, releasing cyanide, carbon monoxide, Low toxicity to organisms, though tends to break down under UV light, Neutralize first; neutralized is a good source of potassium for plants, Disproportionates to potassium chlorate and potassium chloride, giving off chlorine, Very toxic to organisms, especially aquatic ones, Decomposes, releasing oxygen, and iodine at high enough temperatures, Potassium iodate may be harmful to organisms, May release iodine vapors in the presence of water, Any reducing agents, such as oxalic acid, hydrogen peroxide, Breaks down to manganese oxide and alkali, Deadly to small organisms, dangerous to organisms in short term, Gives off nitrogen oxides at very high temperatures; burns in presence of organic compounds, releasing carbon oxides, nitrogen and leaving behind alkaline slag, Excellent fertilizer, though may lead to uncontrolled algae growth if dumped in water bodies, Oxidation with sodium percarbonate, oxygen, ozone to nitrate; Thermal decomposition followed by conversion to potassium carbonate or sulfate, Decomposes to form potassium oxide/hydroxide and releases nitrogen oxides fumes, Unlike nitrates, nitrites are poor source of nitrogen for plants; Nitrites are toxic for most animals due to the formation of nitrosamines, Reduction with metallic iron under UV light in the absence of air, Oxidizes flammable materials, burning them, Potassium periodate may be harmful to organisms, Potassium/sodium sulfite/metabisulfite/thiosulfate, ascorbic acid at acidic pH, Detonates, releasing potassium chromate, chromium(III) oxide fumes, Alkaline solution, sodium carbonate in water, Dangerous to the environment in short term, Not always required; can be dumped in trash or poured down the drain, Releases carbon oxides, soot and leaves behind potassium carbonate, Not always required; can be disposed in anyway, Releases combustion gasses and leaves behind sodium and potassium carbonate, Will decompose at high temperatures to release various hydrocarbons, carbon oxides, water vapors, Large quantities may be harmful to water bodies and small animals, Releases sulfur oxides at very high temperatures, Oxidation of aqueous potassium sulfite to sulfate reduces the amount of dissolved oxygen from water bodies, Dissolution in large amounts of water; poured down the drain, Decomposes to release carbon oxides, leaving behind basic potash, Safe, biodegradable; avoid dumping large amounts, kills microbial lifeform, Incineration, first mix it with a more flammable solvent, Not required, though it can be mixed with a flammable solvent and burned, Generates carbon oxides and water vapor, as well as other toxic pyrolysis compounds, May give off carbon oxides and nitrogen gasses at high temperatures, as well as cyanide, Contact with strong acids may release hydrogen cyanide, Not required; dump it in trash; mix it with concrete, Yes (powder or fine grains only, with plenty of water), Dilution in water followed by addition of NaOH solution, Breaks down to combustion gasses and soot, Incineration in a special incinerator; Oxidation with Fenton's reagent, Gives off carbon oxides, water vapors, soot, amines and nitrogen, Gives off carbon dioxide, water vapors and other side products, Safe, can be used as nourishment by organisms; Important role in Krebs cycle, Decomposes, releasing carbon oxides, water vapors, soot, pyridine derivatives, Low toxicity, though harmful for microorganisms, Dissolved in acid, followed by recovery of nickel and aluminium, Displays moderate toxicity to aquatic life; RDX can be degraded by the fungus Phanaerocheate chrysosporium, Unknown effects, doesn't appear to be harmful, Recycling; Wastes should be taken to hazardous metal disposal centers, While bismuth and tin don't present great hazard to environment, lead does, Breaks down to carbon oxides and water vapors, Recycling; Taken to waste disposal centers; Dumped in trash, Decomposes and ignites, releasing large amounts of black smoke, soot, VOCs, Natural rubber has low toxicity and is biodegradable; Synthetic and vulcanized rubber do not easily break down in the environment and are harmful for nature, Acidified sodium nitrite, nitrous acid; recycling of rubidium, Dangerous to organisms in very high concentrations; Rubidium ions have similar toxicity to those of sodium and potassium, Dangerous to wildlife in short term (highly corrosive); Rubidium ions have similar toxicity to those of sodium and potassium, Decomposes to rubidium nitrite above ~300 C, Low toxicity to wildlife, occurs naturally, Breaks down to phenol; at higher temperatures gives off carbon oxides, water vapors, soot and VOCs, Low toxicity to environment, occurs naturally, Breaks down to copper(I) oxide, gives off water vapors and ammonia, Copper ions and ammonia are toxic to most animals, especially small ones; ammonia can be a source of nitrogen for plants, Incineration, if no peroxides present; If peroxides are present, neutralize them with a reducing agent such as ferrous sulfate, sodium bisulfite or metabisulfite in excess, then incinerate; If the bottle has peroxides on the cap, do not open it, instead safely detonate it in a remote or special area, Surface oxidation at high temperatures in oxygen; decomposes at its melting point, At high temperatures results in melting; Can be used to indurate crystalline silica, Finely divided silica is dangerous for fauna, Photolysis; Reduction with a more reactive metal or a reducing agent like ascorbic acid; Recycling of silver, Breaks down to metallic silver, water and carbon dioxide at high temperatures, Toxic to wildlife; silver microparticles are harmful if ingested, Detonates, releasing silver particles and nitrogen gas, Breaks down to metallic silver and bromine at high temperatures, Photolysis; Reduction with a reducing agent like ascorbic acid or formaldehyde; Recycling of silver, Breaks down to metallic silver, oxygen and carbon dioxide above 120 C, Toxic to wildlife in short term; silver microparticles are harmful if ingested, Breaks down to metallic silver and chlorine at high temperatures, Reduction with a reducing agent like ascorbic acid or formaldehyde; Recycling of silver, Photolysis; Reduction with potassium thiocyanate or hydrochloric acid; Recycling of silver if possible, Explodes, releasing oxygen, nitrogen, carbon oxides and silver powder, Melts and breaks down to metallic silver and iodine at high temperatures, Breaks down to metallic silver, oxygen and nitrogen dioxide at high temperatures, Breaks down to metallic silver, oxygen and nitrogen oxides at high temperatures, Reduction with a more reactive metal or a reducing agent like ascorbic acid; Recycling of silver, Breaks down to metallic silver, silver chloride, oxygen, chlorine at high temperatures, Breaks down to metallic silver, oxygen and/or sulfur dioxide/trioxide at high temperatures, Not useful, already byproduct of high-temperature reactions, Slag is harmful for environment, especially if heavy metals are present, Somewhat good as a fertilizer, though expensive; Acts as a slow-release nitrogen source for plants, Decomposes and burns at high temperatures, releasing lots of soot, carbon dioxide and water vapors, High levels of sodium are toxic for plants; anionic surfactants are harmful for environment, Results in sodium carbonate and acetone at high temperatures, then carbon dioxide and water vapors, High levels of sodium are toxic for plants, Gives off carbon dioxide, water vapors and soot, Neutralization with an alkali or carbonate solution; adding the compound in small bits in large volumes of water and alcohol, Cooled alcoholic solution with small amounts of a weak acid; addition of amide in small amounts, Extremely harmful to environment in short term, Breaks down to sodium metal and gives off nitrogen gas, Too much sodium is harmful to plants; Reaction with certain compounds may release traces of benzene; otherwise safe, occurs naturally, Not required; Bleach or hydrogen peroxide can be used if desired, Neutralization with an alkali or carbonate solution; Slow addition in a large volume of water or alcohol, Melts and disproportionates to sodium perchlorate and sodium chloride, Small amounts can be dumped, as household bleach already contains a small percentage of chlorates, especially if it's old; Do not dump large quantities though, Small amounts can be dumped; Do not dump large quantities though, Neutralization of cyanide; Slow decomposition in a large volume of water or alcohol, Cyanide is toxic to organisms, will increase the boron concentration in soil or water, Dilution in water, followed by bleach or hydrogen peroxide, Breaks down to sodium sulfate, sodium sulfite, sodium thiosulfate, sulfur dioxide, Mixed with a flammable solvent and incinerated; Poured down the drain, Gives off carbon oxides, water vapors, sulfur oxides, Slow addition to a large volume of water, best with small amounts of a carboxylic acid, such as acetic or citric acid, Toxic and very corrosive to most organisms; Raises pH in water bodies, Diluted organic solutions will reduce it to its constituent oxides, Not recommended due to its sodium content, Dangerous to organisms due to its strong oxidizing properties, Decomposes to sodium oxalate, then carbonate, releasing carbon monoxide and water vapors, High levels of sodium are toxic to plants, Breaks down at high temperatures releasing aluminium fluoride, HF fumes, Relative safe to environment, harmful for insects and small animals; occurs naturally, Breaks down to sodium polyphosphates and sodium oxide, giving off phosphorus oxide fumes at high temperatures, Corrosive to organisms, harmful to wildlife, Dangerous to wildlife in short term; toxic to plants due to sodium ions, Disproportionates to sodium chlorate and sodium chloride, giving off chlorine, Very toxic to organisms, especially aquatic ones; High levels of sodium are toxic for plants, Toxic to most fauna; High levels of sodium are toxic for plants, Dissolution in a large volume of water slowly, best with small amounts of a carboxylic acid, such as acetic acid, Addition in large amounts of water, followed by addition of aq. 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