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 Current Location:products > Sodium Thiosulfate
Sodium Thiosulfate


Sodium Thiosulfate (Sodium Hyposulphite)



1, Molecular formula: Na2S2O2·5H2O

2, Molecular weight:
248.17

3,
Properties: monoclinic crystal, Melting point : 40-45, Relative density :1.729(17). 

4, Quality standard:

Item 
 Photo grade
Tech grade
Anhydrous grade
Appearance
colorless transparent crystal 
colorless transparent crystal 
white powder
Assay
≥99.00%
≥98.5%
≥98.0%
Water Insoluble matter 
≤0.01%
≤0.03%
≤0.03%
Sulfide
≤0.001%
≤0.003%
≤0.001%
Fe
≤0.001%
≤0.003%
≤0.001%
PH value
6.5-9.5
6.5-9.5
6.5-9.5
Granularity
12-16
--
--

5, Packing:
25kg, 50kg plastic woven bag, or following your demand. 

6, Uses:
used in fixers, plating, leather, reductant, dechlorinating agent, sulfur dyeing agent, as a blush preventive agent, and as a disinfectant. and decolor agent



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