|
1.Another name: Sodium thiosulfate
2. Molecular formula: Na2S2O2 .5H 2O
3. Molecular weight: 248.17
4.Properties :monoclinic crystal, Melting point : 40 -45oC , Relative density :1.729( 17 oC ).
5.Use:used in fixers, plating, leather, reductant, dechlorinating agent, sulfur dyeing agent, as a blush preventive agent, and as a disinfectant. and decolor agent
6.Packing:25kg , 50kg plastic woven bag, or following your demand.
7.Specification of Sodium Hyposulphite
|
Item |
Photographic grade |
Industrial grade |
Anhydrous grade |
|
Appearance |
colorless transparent crystal |
colorless transparent crystal |
white powder |
|
Assay |
≥99.00% |
≥98.5% |
≥97.0% |
|
Water Insoluble matter |
≤0.01% |
≤0.03% |
≤0.03% |
|
Sulfide |
≤0.001% |
≤0.003% |
≤0.001% |
|
Fe |
≤0.001% |
≤0.003% |
≤0.005% |
|
PH |
6.5-9.5 |
6.5-9.5 |
6.5~9.5 |
|
Water solution reaction |
in accordance with the test |
in accordance with the test |
---- |
|
Granularity(g/g) |
12-16 |
--- |
---- | |
