Please login to your online account to display your discounted pricing

Alfa Aesar™ Ammonium thiosulfate, 98+%

$34.64 - $221.66

Chemical Identifiers

Chemical Name or Material Ammonium thiosulfate
CAS 7783-18-8
Molecular Formula (NH4)2S2O3
Formula Weight 148.2
MDL Number MFCD00015965
Merck Index 14,562
View More Specs
Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAA101900E

 
alfa aesar™
A101900E
2500g Each for $221.66

AAA1019022

 
alfa aesar™
A1019022
100g Each for $34.64

AAA1019036

 
alfa aesar™
A1019036
500g Each for $62.19
Description & Specifications

Specifications

Formula Weight 148.2
Chemical Name or Material Ammonium thiosulfate
TSCA TSCA
Assay ≥98%
Molecular Formula (NH4)2S2O3
MDL Number MFCD00015965
CAS 7783-18-8
Merck Index 14,562
Melting Point ≈180°C (dec.)
pH 6.0 to 6.5
Quantity 2500g
RTECS Number XN6465000

Applications
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.

Solubility
Soluble in water, slightly soluble in acetone. Insoluble in ethanol and diethyl ether.

Notes
Hygroscopic. Incompatible with strong oxidizing agents, acids, magnesium and aluminum.