Ammonium thiosulfate solution
Negotiable /Ton
Min.Order:1 Ton
Anhui Yikai Agriculture Co.,Ltd.
CAS No: 7783-18-8
Molecular formula: (NH4) 2S2O3
Molecular weight: 148.20
Physicochemical properties: colorless transparent liquid, insoluble in alcohol and ether, slightly soluble in acetone. When heated to 150 ℃, it will decompose to form ammonium sulfite, sulfur, ammonia, hydrogen sulfide and water. The air is very unstable and stable in ammonia gas.
Usage: Mainly used for the processing of color positive film, negative film, color reversal film, color film and photo paper, as a fixing agent.
Packing: Ammonium thiosulfate solution can be packed in plastic drums, with a net weight of 250kg per drum.
Product specifications:
Item | Index |
Appearance | Colorless transparent liquid |
content% | 56-60 |
Ammonium sulfite ≤% | 1.0 |
Alkalinity% | 0.3-1.5 |
Insoluble matter (precipitation of calcium and magnesium) ≤% | 0.2 |
Heavy metals (in terms of lead) ≤% | 0.001 |
Iron (Fe) ≤% | 0.00025 |
Sulfide (as sulfur) ≤% | 0.0002 |
Burning residue ≤% | 0.1 |
Specific gravity (20 ℃) | 1.310-1.335 |