Ammonium thiosulfate ((NH4)2S2O3) 99%

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0 Metric Ton	Negotiable

0 Metric Ton

Negotiable

Min.Order :0 Metric Ton
Purity: 99

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Ammonium thiosulfate H3N.1/2H2O3S2 7783-18-8

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Appearance:
Application:This product used for photographic fuser than sodium salt dissolve halogenating silver emulsions are more likely to have washed membrane, short time and silver recycling easy advantages. Also can be u
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Specifications

molecular formula: H3N.1/2H2O3S2
Appearance:
Colorless single crystal is inclined crystallization.

molecular formula: H3N.1/2H2O3S2

Appearance:
Colorless single crystal is inclined crystallization.

Properties:

1. Colorless single crystal is inclined crystallization.
2. Easy deliquescence. Soluble in water, slightly soluble in acetone, insoluble in alcohol, ether.
3. Aqueous long together with sulfur exhalation. Hot to 150 °C decomposition form and ammonium sulfate, sulfur, ammonia, hydrogen sulfide and water.

Use:

This product used for photographic fuser than sodium salt dissolve halogenating silver emulsions are more likely to have washed membrane, short time and silver recycling easy advantages. Also can be used as metal detergency agent, silver plating solution, reductant and chemical reagents.

Test item	Specification
Test item	AR	CP
Appearance	Conform	Conform
purity/%	≥99.0	≥98.5
Appearance of solution	Conform	Conform
Water insoluble /%	≤0.005	≤0.01
Chloride (Cl)/%	≤0.02	-
Sulphates(SO4)/%	≤0.05	≤0.1
Sulfide(S)/%	≤0.00025	≤0.0005
Total nitrogen (N) /%	≤0.005	-
magnesium (Mg) /%	≤0.001	-
Calcium (Ca) /%	≤0.003	≤0.05
Ferric (Fe)/%	≤0.0005	≤0.001
Heavy metal (Pb)/%	≤0.0005	≤0.001