Ammonium thiosulfate , 98% , 7783-18-8
Synonym(s):
Diammonium thiosulfate
CAS NO.：7783-18-8
Empirical Formula: H8N2O3S2
Molecular Weight: 148.21
MDL number: MFCD00015965
EINECS: 231-982-0
| Pack Size | Price | Stock | Quantity |
| 100g | RMB79.20 | In Stock |
|
| 500G | RMB399.20 | In Stock |
|
| others | Enquire |
PRODUCT 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 |
| 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) |
Description and Uses
Ammonium thiosulfate is a white crystallinesolid with an ammonia odor. Molecular weight= 148.21;Freezing/Melting point= 150 C [decomposes ,50℃(solution); .100℃ (anhydrous crystals)]. HazardIdentification (based on NFPA-704 M Rating System):Health 1, Flammability 0, Reactivity 0. Highly soluble inwater.
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.
Safety
| 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 |
