Ammonium thiosulfate
Description
A white crystalline solid that is used as a photographic fixing agent. Ammonium thiosulfate is also used as a Fungicide, a metal lubricant, and an analytical reagent. It acts as a reducing agent that is effective for cleaning metals and alloys containing Tin, Zinc, Lead, or Silver.
Synonyms and Related Terms
ammonium thiosulphate (Br.)
Other Properties
Soluble in water. Insoluble in ethanol.
| Composition | (NH4)2S2O3 |
|---|---|
| CAS | 7783-18-8 |
| Melting Point | 150 (dec) |
| Density | 1.32 |
| Molecular Weight | mol. wt. = 148.21 |
Hazards and Safety
Contact may cause irritation. Noncombustible.
Eastman Kodak: MSDS 03/05/99
Authority
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Random House, Webster's Encyclopedic Unabridged Dictionary of the English Language, Grammercy Book, New York, 1997
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 598