Traceability NIST SRM. 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. Breaks down rapidly in the environment due to air and microorganisms, yielding sulfides and sulfates. Oxidizing mixtures, such as aqua regia, piranha solution or the nitrating mixture must also never be poured down the drain, as they're much more dangerous than simple acids, and can wreak havoc on your plumbing. However there are many chemicals, such as heavy metal compounds or organic solvents, that require special disposal techniques. Instead, they must be neutralized first. Avoid breathing dust. Water soluble. ALWAYS POUR THE ACID IN WATER AND NOT THE OTHER WAY AROUND! It may be a better idea just to recover them by distillation, though. WebPackage lots. Keep in suitable, closed containers for disposal. WebIf Zinc is spilled, take the following steps: f Evacuate personnel and secure and control entrance to the area. 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 USA.gov. Breaks down yielding phosphine, phosphorus oxides and nitrogen oxides. State and local disposal regulations may differ from federal disposal regulations. Salts of hydrochloric, sulfuric, phosphoric acids can be further diluted then safely poured down the drain, or recycled if you want. Wear nitrile rubber gloves, laboratory coat, and eye protection. This wiki will NOT take any responsibility (legal or other) for any (failed) attempts at neutralizing hazardous reagents. Bases may be reused to absorb acidic vapors in a desiccator, which mitigates their dangers. WebSoak up with inert absorbent material and dispose of as hazardous waste. WebPick up and arrange disposal without creating dust. WebAcidic salts, such as ZINC SULFATE, are generally soluble in water. Dispose of contents/container in accordance with local/regional/national/international regulation. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. products are harmful, Recycling; Traces of bronze waste can be completely dissolved with nitric acid, followed by neutralization of leftover acid, recovering copper and tin via electrowinning, Old bronze may contain arsenic, lead or nickel which is harmful to the environment, Will burn to release carbon dioxide and water vapors, Will burn to release carbon dioxide, soot, VOCs, PAHs and water vapors, Bicarbonates, carbonates, bases, oxides; neutralized solution can be safely poured down the drain, Flammable (high concentrations), no dangerous combustion products, though the smoke will have a rancid smell, Safe, biodegradable; avoid dumping large amounts, dangerous to microfauna and water bodies, Very controlled incineration, done outside or in a kiln; Oxidation with Fenton's reagent; Hot aqueous solution containing sodium hydroxide and sodium tetraborate, Ignites, gives off carbon oxides, nitrogen oxides, water vapors, soot, Displays toxicity to aquatic life; RDX can be degraded by the fungus Phanaerocheate chrysosporium; binders may be harmful for organisms, Precipitation to cadmium sulfide, taken to hazardous waste disposal centers, Decomposes at high temperatures to cadmium oxide, Extremely toxic and dangerous to wildlife; Highly carcinogenic, Decomposes at high temperatures to cadmium oxide and nitrogen dioxide, Decomposes and sublimes at high temperatures, Decomposes at high temperatures to basic sulfate then cadmium oxide releasing sulfur oxides, Very toxic and dangerous to wildlife; Highly carcinogenic, Sodium nitrite, nitrous acid; recycling of caesium, Breaks down to caesium metal and gives off nitrogen gas, Recycling; Taken to waste disposal centers, Dangerous to organisms in very high concentrations; Caesium ions have similar toxicity to those of sodium and potassium. Eliminate all ignition sources. NaOH, Decomposes to release nitrogen/chlorine oxides and oxygen, Aqueous base; percarbonates can also be used to remove nitric oxide; multiple washings may be required, Decomposes, giving off nitrogen oxide and chlorine/HCl fumes, Highly corrosive and toxic to all organisms and materials, Careful addition to crushed ice, followed by neutralization with a diluted base, Deadly and extremely corrosive to all organisms, Diluted and hydrolyzed; Careful and controlled pyrolysis, Any base, hydroxide, carbonate, bicarbonate; percarbonates can also be used, Decomposes, giving off nitrogen oxide fumes, Corrosive to organisms and rocks; salts somewhat toxic to animals, Gentle reduction with various reducing agents, Breaks down to nitrogen and oxygen at high temperatures, Low toxicity to wildlife, may induce light narcotic effects and laughing sensation in some organisms, Mixed with a more flammable solvent, followed by incineration, Safe, occurs naturally in citrus fruit peels, Pyrolysis; diluted and poured down the drain, Decomposes on heating to release carbon oxides and various organic compounds, May pose a threat to wildlife in large amounts, Reduced with hydrogen or another reducing agent, Neutralization with any oxide, hydroxide, carbonate, followed by pyrolysis, Releases carbon oxides and water vapor at high temperature, Toxic to wildlife; Small amounts occur in some plants, Disolving it in large amounts of water, followed by neutralization with any oxide, hydroxide, carbonate, Toxic and corrosive to wildlife and environment, Any compound easily oxidizable that does not ignite, such as carbon monoxide, activated charcoal, Accelerates the decomposition of ozone, but not enough, Dangerous to wildlife, may oxidize various gaseous compounds, contributing to the acid rain; In the upper atmosphere it acts as UV shield, Will burn if ignited, releasing carbon oxides, water vapors and soot, Excess paper is harmful for environment, unless composted first, Wax, both solid and molten, floats on water bodies and may inhibit the cellular breathing of many organisms, Mixed with a flammable solvent and incinerated, Gives off carbon oxides, water vapors, aldehydes, Low toxicity to aquatic life; Classified as biodegradable, Oxidation with Fenton's reagent; Mixed with a flammable solvent and incinerated; Reduction with powdered iron, Gives off carbon oxides, water vapors, soot, Displays relative low toxicity to aquatic life; PETN undergoes safe biodegradation, Flammable, releases carbon oxides, water vapor when burned in air, Bicarbonates, carbonates, bases, oxides; neutralized solution can be safely poured down the drain; valeric salts can also be pyrolyzed in a kiln, Flammable (high concentrations, >86 C), no dangerous combustion products, though the smoke will have a rancid smell, Dangerous for wildlife and aquatic life in large concentrations, Dilution in water, followed by neutralization with a base; iron oxide can be added to decompose hydrogen peroxide; can be poured down the drain afterwards, May explode at high temperatures, at high concentrations, Toxic and corrosive to wildlife, both animals and plants, Neutralization with potassium, calcium bases, followed by reduction with metallic iron under UV light in the absence of air, Leads to decomposition, resulting in manganese dioxide slag, The resulting manganese dioxide from the decomposition can be toxic if ingested by animals, Strong oxidizer, it is dangerous and toxic to small organisms, Oxidation with Fenton's reagent or piranha solution, followed by neutralization and poured down the drain, Gives off carbon oxides, water vapors, soot, VOCs, PAHs, nitrogen, Dangerous to environment, very toxic to aquatic life, Flammable if preheated, gives off carbon dioxide, soot and water vapors, Gives off carbon oxides, water vapors, soot and VOCs, Dilute it with plenty of water before release, Dangerous to environment in large amounts, Not always required, may be strongly diluted and poured down the drain, Breaks down to carbon oxides, water vapors, soot; may give off aromatic vapors, Low toxicity, may occur naturally in small amounts, Oxidation with Fenton's reagent; Incineration, best done with an afterburner, Flammable, burns in air to release carbon oxides, water vapors, soot, VOCs, Toxic to wildlife and very dangerous to aquatic life, as well as soil. f Cover spill with dry sand, earth, or a cooking salt) activates the etch by diminishing the bond with water. The information relates only to the WebExamples of chemicals acceptable for disposal as regular trash are listed below. Never add solid alkali bases in strong acids, as this will cause the acids to violently boil and splash acid everywhere. Evacuate personnel and secure control entrance to the area. Section 12 - Ecological Information Other: Do not empty into drains. Contact with eyes or skin causes irritation. Measurement uncertainty 0.0003 mol/L. However, because only small amounts of compound gets neutralized at a time, this process takes a while. If you live in some quaint rustic shithole paradise like the author of this edit, you only have the "into the soil" option. Green precipitate of copper carbonate forms. 5 WebPackage lots. However, as the carbonate is formed, it will creep out of the flask, covering it. Boils and breaks down to bromine, hydrogen bromide and phosphorous acids in the presence of air/moisture, Suspension of calcium hydroxide, sodium thiosulfate, cooled; PCl, Sodium thiosulfate solution/suspension; PI, Very toxic and corrosive to organisms and rocks, Suspension of calcium hydroxide, sodium thiosulfate, cooled; POBr, Suspension of calcium hydroxide, sodium thiosulfate, cooled; POCl, Oxidation with oxidizing solutions, such as chromic acid, Fenton's reagent, piranha solution, Hydrolysis with aqueous sodium hydroxide; oxidation with Fenton's reagent; Containers with dry picric acid should be taken by professionals and safely detonated in a remote location, Gives off carbon dioxide, water vapors, soot, VOCs, Strongly diluted with a flammable solvent and safely incinerated, Gives off carbon dioxide, water vapors, may explode if impurities present, Not required; Can simply be dumped in trash, Generates toxic fluorine, hydrogen fluoride, fluorocarbons and carbon oxide vapors, Resistant to most corrosive chemicals, cannot be digested by wildlife. Currently there are nine products Do not treat the written disposal guidelines as absolute. Copper Sulfate -> 5% (Most commonly used) Current research may show that Manure slurry + Copper sulfate may have a destructive effect on the mortar between the hoof horn walls. Cyanides must never be poured down the drain before neutralization. Sometimes it is an option to purify waste products into chemicals that are pure enough to be used again. WebExcerpt from ERG Guide 171 [Substances (Low to Moderate Hazard)]: IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area in all directions for at least 50 Very dangerous heavy metals such as cadmium, thallium and arsenic should always be properly disposed of at designated facilities, as their effects on human life and the environment is sometimes catastrophic. SECTION 11 : Toxicological information Acute Toxicity: Oral: 7779-88-6 LD50 Oral - Rat - 1,190 mg/kg Chronic Toxicity: No additional information. The concentration is determined by volumetric titration and refers to 20C. Aqueous solutions are acidic. 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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