Chemical Name: Ammonium thiosulfate
Molecular formula: (NH4)2S2O3
Molecular weight: 148.20
CAS No. : 7783-18-8
EINECS : 231-982-0
Properties:
Ammonium thiosulfate is colorless transparent liquid, Crystal relative density of 1.679, easily soluble in water, solubility at 103°C is 103.3g /100ml water. Insoluble in alcohol, ether, slightly soluble in acetone. Heating to 150 ℃ decomposition of the formation of ammonium sulfite, sulfur, ammonia, hydrogen sulfide and water. It is very unstable in the air, stable in ammonia.
Composition
Items | Specifications |
Appearance | colorless transparent liquid |
Assay | 56-60% |
Sulfite | 1% max |
Insoluble(Ca, Mg) | 0.2% max |
Sulfide(as S) | 0.0002%max |
Residue on ignition | 0.1% max |
Heavy metal(as Pb) | 0.001% max |
Iron | 0.00025%max |
Density(at 20oC) | 1.32-1.335g/ml |
Packing
1L, 5L, 20L, 200L, IBC tanks
Storage
stored at a cool, dry and well ventilated place.
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