Products

Sodium thiosulfate

Product Name: Sodium thiosulfate (Na2S2O3)
Property: Colorless transparent liquid, no odor, easily soluble in water, insoluble in alcohol.
Packing:25kg/50kg plastic woven bag.
Precautions: It should be kept in cool and dry warehouse, avoid sunlight exposure and rain during transportation. Separate from acids and oxidant. The container should be sealed to protect from damp.
Use: It can be used as detergent and disinfectant in pulp, food and pharmaceutical industries. It can also be used for reducing agent, deoxidier, blush preventive agent, detergent and disinfectant, etc.

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Item Index
Superior First Class
Sodium thiosulfate (Na2S2O3·5H2O) content, % ≥ 99.0 98.0
Water insoluble matter content% ≤ 0.01 0.03
Sulfide (in Na2S) content,%≤ 0.001 0.003
Iron (in Fe)content, %≤ 0.002 0.003
PH value(200g/l solution) 6.5~9.5

No. Item Superior First Class For used in powder coating
1 Barium sulfate (in dry basis)%≥ 98.0 98.0 98.0
2 Water soluble matter %≤ 0.20 0.25 0.18
3 Oil absorption (g/100g) 15-20 15-20 15-18
4 Volatile matter (105℃)%≤ 0.15 0.20 0.10
5 PH value(100g/L suspension liquid)≤ 6.5-9.0 6.5-9.0 6.5-9.0
6 Whiteness % ≥ 95.0 94.0 95.0
7 Fineness (aperture 45um)%≥ 0.10 0.20 0.06
8 Iron content(Fe)%≤ 0.003 0.004 0.002
9 Size districution Less than 10um≥ 97.0 97 98.0
Less than 5um≥ 96.0 96.0 97.0
Less than 2um≥ 80.0 75.0 80.0
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