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Ammonium sulfide

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CAS:12135-76-1
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Products Intro: Product Name:Ammonium Sulfide
CAS:12135-76-1
Ammonium sulfide Basic information
Product Name:Ammonium sulfide
Synonyms:ammoniumsulfide,solution;ammoniumsulfideaqueoussolution;Ammoniumsulfidesolution;diammoniumsulfide;trueammoniumsulfide;AMMONIUM POLYSULPHIDE;AMMONIUM HYDROSULFIDE;AMMONIUM SULFIDE
CAS:12135-76-1
MF:H8N2S
MW:68.14
EINECS:235-223-4
Product Categories:Industrial/Fine Chemicals;Inorganics;A-B;Alphabetical Listings;Flavors and Fragrances;AmmoniumEssential Chemicals;Reagent Grade;Routine Reagents;AmmoniumDerivatization Reagents TLC;TLC Reagents, A-C;Inorganic Salts;Synthetic Reagents;TLC Visualization Reagents (alphabetic sort);metal chalcogenides;-
Mol File:12135-76-1.mol
Ammonium sulfide Structure
Ammonium sulfide Chemical Properties
Melting point decomposes [HAW93]
Boiling point 40 °C
density 1 g/mL at 25 °C
refractive index n20/D 1.467
FEMA 2053 | AMMONIUM SULFIDE
Fp 90 °F
form Liquid
Specific Gravity1.2
color Yellow to orange
Water Solubility Miscible with water, alcohol and liquid ammonia.
Merck 13,560
Stability:Stable. Pure material is highly flammable - note wide explosion limits. Incompatible with strong oxidizing agents, strong acids, copper, brass, bronze, strong bases, zinc, aluminium.
CAS DataBase Reference12135-76-1(CAS DataBase Reference)
EPA Substance Registry SystemAmmonium sulfide ((NH4)2S)(12135-76-1)
Safety Information
Hazard Codes C,N,F
Risk Statements 11-31-34-50-10
Safety Statements 26-36/37/39-45-61-16
RIDADR UN 2683 8/PG 2
WGK Germany -
10-13-23
TSCA Yes
HazardClass 8
PackingGroup II
HS Code 28309090
Hazardous Substances Data12135-76-1(Hazardous Substances Data)
MSDS Information
ProviderLanguage
SigmaAldrich English
ALFA English
Ammonium sulfide Usage And Synthesis
Chemical Propertiesyellow to orange fuming liquid
Chemical PropertiesAmmonium sulfide is a yellow crystalline (sugar or sand-like) material, commonly found in liquid solution, which is flammable. Solution has an odor of rotten eggs.
Chemical PropertiesThe distinct ammonical/sulfurous odor of ammonium sulfide makes it a valuable flavor ingredient. It is used in baked goods, meat products, condiments and gravies.
UsesTo apply patina to bronze, in photographic developers, in textile manufacture, in trace metal analysis.
General DescriptionAmmonium sulfide aqueous solution is a colorless to yellow liquid, with an odor of rotten eggs or ammonia. Material in aqueous from the hydrosulfide which with acid forms H2S. Ammonium sulfide may be irritating to skin, eyes and mucous membranes and may cause illness from skin absorption. Ammonium sulfide may burn and/or emit toxic fumes if heated to high temperatures.
Air & Water ReactionsReadily oxidized to be pyrophoric in air [Bretherick 1979 p. 120]. Ammonium sulfide is slowly decomposed by moisture giving off hydrogen sulfide, a flammable gas. Heat is generated when the pure compound is first dissolved in water.
Reactivity ProfileAMMONIUM SULFIDE SOLUTION is a strongly alkaline aqueous solution. Reacts with acids to generate toxic gaseous hydrogen sulfide. Reacts with bases to release gaseous ammonia. May react vigorously with oxidizing agents, including inorganic oxoacids, organic peroxides and epoxides. Special Hazards of Combustion Products: Toxic hydrogen sulfide gas is released when solution is heated. If ignited, this will form irritating sulfur dioxide gas [USCG, 1999].
Health HazardInhalation of 500 ppm for 30 min. produces headaches, dizziness, bronchial pneumonia; 600 ppm for 30 min. can cause death. Ingestion causes severe irritation of mucous membranes and stomach. Contact with liquid causes severe burns of eyes and severe skin irritation. May be absorbed through skin and cause hydrogen sulfide poisoning.
Fire HazardSpecial Hazards of Combustion Products: Toxic hydrogen sulfide gas is released when solution is heated. If ignited, this will form irritating sulfur dioxide gas.
Industrial usesAmmonium sulfide (NH4)2S is a liquid with an obnoxious odor and because of this, it is not normally used in mineral processing. However, this is the most effective depressant for bornite and covellite. Essentially, (NH4)2S dissolves excess sulfur from the mineral surface, that allows other depressants to adsorb onto the mineral surface. In copper–lead separation, from a bulk concentrate containing covellite and bornite, (NH4)2S can effectively be used together with cyanide.
Potential ExposureIt is used in photographic developers, synthetic flavors, coloring metals (i.e., to apply patina to bronze); and to make textiles.
ShippingUN2923 Corrosive solids, toxic, n.o.s., Hazard class: 8; Labels: 8-Corrosive material, 6.1-Poisonous material, Technical Name Required. UN2683 Ammonium sulfide solution, Hazard class: 8; Labels: 8-Corrosive material, 6.1-Poisonous materials, 3-Flammable liquid
IncompatibilitiesVapor form explosive mixture with air Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. Evolves poisonous ammonia on contact with strong bases. Contact with acid or acid fumes releases hydrogen sulfide. Keep away from moisture.
Waste DisposalAdd to a large volume of ferric chloride solution with stirring. Neutralize with soda ash. Flush to drain with water.
Tag:Ammonium sulfide(12135-76-1) Related Product Information
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