ATS Ammonium Thiosulfate
Tag list： ATS Ammonium Thiosulfate
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Product Description
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
NO. | TEST | SPECIFICATION |
1 | Color(Pt-Co Scale) | ≤15 |
2 | Assay | 58%-60% |
3 | Sulfite | ≤1.0% |
4 | Insoluble(Ca, Mg) | ≤0.2% |
5 | Sulfide(as S) | ≤0.0002% |
6 | Residue on ignition | ≤0.1% |
7 | Heavy metal(as Pb) | ≤0.001% |
8 | Iron | ≤0.00025% |
9 | Density(at 20oC) | 1.32-1.335g/ml |
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