硫代硫酸钠（又名大苏打）

Features:

1) Product: sodium thiosulphate photo grade

2) CAS no.: 10102-17-7

3) Molecular formula: Na2S2O3 .5H2O

4) Specific gravity: 1.729

5) Easily soluble in water and with strong reducing

Specifications:

SODIUM THIOSULPHATE(Na2S2O3.5H2O): 99.0%MIN

INSOLUBLE SUBSTANCE IN WATER:0..01%MAX

SULPHATE(Na2S):0.001%MAX

Fe:0.002%MAX

Ph VALUE:6.5-9.5

Applications:

1) Used in photographic and electroplate applications

2) For purifying soft water and tanning hides

3) As a reducing agent, fixers, blush preventive agent, deoxidizer, sulfur dyeing agent, anti-whiting agent, detergent, disinfectant and color faking agent

Packing:

25kg/plastic woven bag with PE liner inside