CAS: 7772-98-7 Sodium Thiosulphate/ Sodium Hyposulfite

CAS: 7772-98-7 Sodium Thiosulphate/ Sodium Hyposulfite

Product Name: Sodium Thiosulphate/ Sodium Hyposulfite
Apperance: colorless and transparent crystal.
CAS: 7772-98-7
H.S code: 2832300000
Packing: 25kg, 50kg plastic woven bag, or following your demand.

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Sodium Thiosulphate/ Sodium Hyposulfite

Sodium thiosulfate pentahydrate (baking soda/Haibo) is a colorless and transparent crystal. It is a hydrate of sodium thiosulfate, soluble in water, and the aqueous solution is weakly alkaline. It weathers in the dry air above 33 ° C and loses crystal water. It is stable in neutral and alkaline solutions and will decompose rapidly in acidic solution.

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Main Characteristic of Sodium Thiosulphate:

1.colorless and transparent crystal.

2.It is a hydrate of sodium thiosulfate, soluble in water, and the aqueous solution is weakly alkaline.

3. It weathers in the dry air above 33 ° C and loses crystal water.

4. It is stable in neutral and alkaline solutions and will decompose rapidly in acidic solution.

Specification of Sodium Thiosulphate:

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	---	----

Applications of Sodium Thiosulphate:

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.

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