Ammonium thiosulfate
- CAS No.
- 7783-18-8
- Chemical Name:
- Ammonium thiosulfate
- Synonyms
- AMMONIUM THIOSULPHATE;AMMONIUM THIOSULFATE CRYSTALLIZED STAB;amthio;ammohypo;thio-sul;Ammoniumthiosulfat;AMMONIUM HYPOSULFITE;AMMONIUM THIOSULFATE;Ammonuim thiosulfite;ammonium thiosulate
- CBNumber:
- CB8171755
- Molecular Formula:
- H8N2O3S2
- Molecular Weight:
- 148.21
- MOL File:
- 7783-18-8.mol
- MSDS File:
- SDS
- Modify Date:
- 2024/8/21 22:41:43
| Melting point | 150 °C (lit.) |
|---|---|
| Density | 1.679 g/mL at 25 °C (lit.) |
| solubility | H2O: very soluble(lit.) |
| form | Crystalline Powder |
| color | White |
| Odor | Ammonical odour |
| Water Solubility | Soluble in water, slightly soluble in acetone. Insoluble in ethanol and diethyl ether. |
| Sensitive | Hygroscopic |
| Merck | 14,562 |
| Stability | Stable. Hygroscopic. |
| InChI | InChI=1S/2H3N.H2O3S2/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4) |
| InChIKey | XYXNTHIYBIDHGM-UHFFFAOYSA-N |
| SMILES | S(=S)(=O)(O)O.N.N |
| LogP | -0.428 (est) |
| CAS DataBase Reference | 7783-18-8(CAS DataBase Reference) |
| EPA Substance Registry System | Ammonium thiosulfate (7783-18-8) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H319 | |||||||||
| Precautionary statements | P305+P351+P338 | |||||||||
| Risk Statements | 33-36/37/38 | |||||||||
| Safety Statements | 26-37 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | XN6465000 | |||||||||
| TSCA | Yes | |||||||||
| HS Code | 28323000 | |||||||||
| Toxicity | LD50 orl-rat: 2890 mg/kg GTPZAB 26(6),54,82 | |||||||||
| NFPA 704 |
|
Ammonium thiosulfate price More Price(5)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 336726 | Ammonium thiosulfate 98% | 7783-18-8 | 500G | ₹2262.43 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 336726 | Ammonium thiosulfate 98% | 7783-18-8 | 500G | ₹2262.43 | 2022-06-14 | Buy |
| Sigma-Aldrich | 336726 | Ammonium thiosulfate 98% | 7783-18-8 | 2.5KG | ₹17720.53 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 336726 | Ammonium thiosulfate 98% | 7783-18-8 | 2.5KG | ₹17720.53 | 2022-06-14 | Buy |
| ottokemi | A 2365 | Ammonium thiosulphate 99% | 7783-18-8 | 500gm | ₹990 | 2022-05-26 | Buy |
Ammonium thiosulfate Chemical Properties,Uses,Production
Chemical Properties
Ammonium thiosulfate is a white crystalline solid with an ammonia odor.
Physical properties
Colorless, 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.
Uses
Ammonium 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.
General Description
AMMONIUM 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 Reactions
Hygroscopic. Very soluble in water.
Reactivity Profile
AMMONIUM 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 Hazard
Inhalation of dust may irritate respiratory system. Ingestion could be harmful. Contact with eyes or skin may cause irritation.
Fire Hazard
Special Hazards of Combustion Products: Toxic ammonia, hydrogen sulfide, and oxides of nitrogen and sulfur may form in fires.
Agricultural Uses
Ammonium thiosulphate, [(NH4)2S2O3 or ATS] is a
crystalline salt, the aqueous solution of which is
commonly used as a liquid fertilizer. Crystalline
ammonium thiosulphate contains 19% nitrogen and 43 %
sulphur and its aqueous solution contains 12% nitrogen
and 26 % sulphur.
Ammonium thiosulphate is compatible with nitrogen
and nitrogen-potassium solutions, which are neutral or
slightly acidic (pH 5.8). It is also used as a suspension:
As it is non-corrosive, it can be stored in steel or
aluminumdrums.
Ammonium thiosulphate is prepared by the reaction
of sulphur dioxide and aqueous ammonia, followed by a
further reaction with elemental sulphur.
ATS can be applied directly to soils or as a foliar spray
through sprinkler irrigation systems. When applied to soils,
ATS decomposes into ammonium sulphate and colloidal
sulphur. The ammonium sulphate is available immediately
to plants, while the sulphur gets oxidized over a period of
time to sulphate ion (SO42-) It is thus available to plants for
a longer time.
Ammonium thiosulphate also acts as a urease
inhibitor. When added to a urea-ammonium nitrate
solution, it inhibits urease activity for a month or so. In
industry, it is also used as a photographic fixing agent,
analytical reagent, fungicide and as a brightener in silverplating
baths.
Safety Profile
Moderately toxic by ingestion.When heated to decomposition it emits toxic vapors ofNH4- and SOx.
Potential Exposure
Used as an agricultural chemical and fungicide, metal lubricant; in cleaning metals; in photographic chemicals, making other chemicals. A laboratory reagent.
Shipping
UN3077 Environmentally hazardous substances, solid, n.o.s., Hazard class: 9; Labels: 9-Miscellaneous hazardous material, Technical Name Required.
Incompatibilities
Contact with sodium chlorate may cause a violent reaction. Corrodes brass, copper, and copperbased metals.
Waste Disposal
Incinerate. It may be possible to dispose of waste material at a municipal facility if treated, neutralized and oxidized.
Ammonium thiosulfate Preparation Products And Raw materials
Raw materials
1of2
chevron_rightPreparation Products
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| SYNOVA CHEMICALS | +91-9920741772 +91-9920741772 | Mumbai, India | 428 | 58 | Inquiry |
| Imperial Chem Incorporation (part of Imperial Group) | +91-9723609393 +91-9723609393 | Gujarat, India | 34 | 58 | Inquiry |
| Suvchem | 91-22-28725393 | Maharashtra, India | 180 | 58 | Inquiry |
| Shakti Chemicals | 08048981807 | Vadodara, India | 10 | 58 | Inquiry |
| Lovely chemicals | 91-8043051684 | Gujarat, India | 8 | 58 | Inquiry |
| P K Chlorochem Pvt. Ltd. | 91-265-2633297 | Gujarat, India | 88 | 58 | Inquiry |
| Chemico | 09166312452 | Mumbai, India | 235 | 58 | Inquiry |
| Buradon Inc. | 91-7574886714 | Gujarat, India | 46 | 58 | Inquiry |
| Titan Biotech Limited | 09711169006 | Delhi, India | 196 | 58 | Inquiry |
| Canton Laboratories Pvt. Ltd. | 91-265-2638084 | Gujarat, India | 60 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| SYNOVA CHEMICALS | 58 |
| Imperial Chem Incorporation (part of Imperial Group) | 58 |
| Suvchem | 58 |
| Shakti Chemicals | 58 |
| Lovely chemicals | 58 |
| P K Chlorochem Pvt. Ltd. | 58 |
| Chemico | 58 |
| Buradon Inc. | 58 |
| Titan Biotech Limited | 58 |
| Canton Laboratories Pvt. Ltd. | 58 |