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Ammonium Thiosulphate Solution
Product introduction
Ammonium Thiosulphate
Product name: Ammonium Thiosulphate
English name: Ammonium Thiosulphate、ammohypo
CAS No: 7783-18-8
Molecular formula: (NH4)2S2O3
Molecular weight: 148.2
Structural formula:
Technical index
Item | Index |
appearance | colorless clear liquid |
purity% | 53—60 |
basicity(NH4OH)% | 0.3--1.5 |
ignition residue % | ≤0.1 |
heavy metal(Pb)% | ≤0.001 |
sulfite % | ≤1.0 |
sulfide(S)% | ≤0.001 |
density 20°C) | 1.290--1.346 |
insolubles % | ≤0.2 |
ferrum(Fe)% | ≤0.001 |
PH(25℃) | 8--9 |
Uses: For printing of color film and photographic paper; as fixing agent
Packaging: liquid ammonium thiosulfate should be preserved in plastic drum; net weight: 250kg
Storage: should be preserved in cool and dry place; seperate with acidic material