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Postion:Product Catalog >Inorganic chemistry>Inorganic salts>Metal Sulphides and sulphates>Ammonium thiosulfate
Ammonium thiosulfate
  • Ammonium thiosulfate
  • Ammonium thiosulfate
  • Ammonium thiosulfate
  • Ammonium thiosulfate
  • Ammonium thiosulfate

Ammonium thiosulfate NEW

Price Get Latest Price
Package 25KG
Min. Order: 1KG
Supply Ability: 50000KG/month
Update Time: 2023-09-26

Product Details

Product Name: Ammonium thiosulfate CAS No.: 7783-18-8
EC-No.: 231-982-0 Min. Order: 1KG
Purity: 99% Supply Ability: 50000KG/month
Release date: 2023/09/26

CAS:7783-18-8
MF:H8N2O3S2
MW:148.21
EINECS:231-982-0
Product Categories:Inorganics;AmmoniumMetal and Ceramic Science;Ammonium Salts;Inorganic Salts;Salts;Synthetic Reagents;Industrial/Fine Chemicals
Mol File:7783-18-8.mol
Article illustration

Ammonium thiosulfate Chemical Properties
Melting point 150 °C (lit.)
density 1.679 g/mL at 25 °C (lit.)
solubility H2O: very soluble(lit.)
form Crystalline Powder
color White
OdorAmmonical odour
Water Solubility Soluble in water, slightly soluble in acetone. Insoluble in ethanol and diethyl ether.
Sensitive Hygroscopic
Merck 14,562
Stability:Stable. Hygroscopic.
InChIInChI=1S/2H3N.H2O3S2/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
InChIKeyXYXNTHIYBIDHGM-UHFFFAOYSA-N
SMILESS(=S)(=O)(O)O.N.N
LogP-0.428 (est)
CAS DataBase Reference7783-18-8(CAS DataBase Reference)
EPA Substance Registry SystemAmmonium thiosulfate (7783-18-8)
Ammonium thiosulfate Usage And Synthesis
DescriptionAmmonium thiosulfate is an inorganic compound. It is white crystalline solid with ammonia odor, readily soluble in water, slightly soluble in acetone and insoluble in ethanol and diethyl ether. And Ammonium thiosulfate is used in photographic fixer. It is a so-called rapid fixer, acting more quickly than sodium thiosulfate fixers. Fixation involves these chemical reactions (illustrated for silver bromide). Ammonium thiosulfate is also used for leaching of gold and silver. It works with presence of copper as a catalyst here. This process is a nontoxic alternative gold cyanidation. Ammonium thiosulfate can be used as a fertilizer. As suggested by some research studies it can be used as an additive to coal-waste mixtures to reduce formation of very dangerous dioxins and furans.
Methods of Manufacturing
Direct reaction of ammonium sulfite with sulfur. Besides,the ATS process, sulfur dioxide is absorbed from incinerated Claus tail gas in aqueous ammonia to produce ammonium sulfate and ammonium bisulfite in solution. The solution passes to a converter where it flows countercurrent to hydrogen sulfide. Ammonium thiosulfate forms /in solution and/ is concentrated to 60 wt%.
ToxicityAmmonium thiosulfate exists as colorless, monoclinic or white crystals with ammonia like odor. It is very soluble in cold water; slightly soluble in acetone and insoluble in alcohol and ether. It is used to clean white metal; in lubricants for metal cold working, as an analytical reagent; fungicide, reducing agent; brightener in silver plating bath, and in hair waving preparations; fog screens, and cleaning compounds for zinc base die cast metals and it is used as a desiccant and defoliant in crop bearing plants. Inhalation of dust may irritate respiratory system. Contact with eyes or skin may cause irritation. Ingestion may be harmful.
References1.https://pubchem.ncbi.nlm.nih.gov/compound/ammonium_thiosulfate#section=FDA-Requirements
2. https://en.wikipedia.org/wiki/Ammonium_thiosulfate
Chemical Propertieswhite or colourless crystals
Chemical PropertiesAmmonium thiosulfate is a white crystalline solid with an ammonia odor.
Physical propertiesColorless, monoclinic crystal; hygroscopic; decomposes on heating above 100°C; density 1.679 g/cm3; very soluble in water (64 g/100 g at 20°C), insoluble in alcohol, and slightly soluble in acetone.
UsesAmmonium thiosulfate finds application for leaching of gold and silver since it forms strong complexes. It is widely utilized as a photographic fixing agent, which acts quicklier than sodium thiosulfate fixers. It serves as a fertilizer. It acts as an additive to coal-waste mixtures to inhibit the formation of dangerous dioxins and furans. It is used as an analytical reagent in laboratories.
UsesTo clean "white" metal; in photography; in lubricants for metal cold-working.
General DescriptionAMMONIUM THIOSULFATE is a white crystalline solid. AMMONIUM THIOSULFATE is very soluble in water. The primary hazard is the threat posed to the environment. Immediate steps should be taken to limit its spread to the environment. AMMONIUM THIOSULFATE is used in photography, in chemical analysis, and for many other uses.
Air & Water ReactionsHygroscopic. Very soluble in water.
Reactivity ProfileAMMONIUM THIOSULFATE is sensitive to heat. AMMONIUM THIOSULFATE is incompatible with magnesium and aluminum powder. Mixtures with sodium chlorate can cause an exothermic reaction which can then decompose explosively. . Reacts with strong oxidizers such as chlorates, nitrates, and nitrites to release toxic ammonia, hydrogen sulfide, and sulfur trioxide gases. Will not polymerize. Ammonia, hydrogen sulfide, and oxides of nitrogen and oxides of sulfur may form in fires [USCG, 1999].
Health HazardInhalation of dust may irritate respiratory system. Ingestion could be harmful. Contact with eyes or skin may cause irritation.

Packing &shipping&Payment

Packing:25kg/drum
Shipping:by sea or by air
Payment:T/T,western union,moneygram
Packaging Details drum
Port:Tianjin
Lead Time :
Quantity(Kilograms)1 - 10000>10000
Est. Time(days)5To be negotiated

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Article illustrationCompany information
Hebei Mojin Biotechnology Co., Ltd, Our company is a professional in 4'-Methylacetophenone,Levamisole hydrochloride ,N-Methylformamide and other chemical reagents research and development production enterprises. Our business covers more than 30 countries, most of the big customers come from Europe, America and other countries in the world, we can guarantee the quality and price. In recent decades, with the efforts of all employees, we have established many cooperative companies in shandong, henan, guangdong and other places. Our corporate purpose is based on the market, enhance the strength, take the road of scientific and environmental sustainable development, relying on the country. Technology r & d center, increase the investment in r & d, based on the domestic market, expand the international market, manufacturing quality products, sincere service to the society, into a modern, ecological, scientific and technological enterprise world.

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