Ammonium Thiosulphate

1. Chemical name:Ammonium Thiosulphate

2. Structural formula:

3. Molecular formula:(NH4)2S2O3

4. Molecular weight:148.20

5. Properties:. Colorless transparent liquid or white crystal. Relative density of crystal: 1.679,easily soluble in water,insoluble in alcohol, ether,slightly soluble in acetone.

6. Quality standard:

Index name	Liquid	Solid
Assay	56~60%	≥98%
Appearance	colorless transparent Liquid	white crystal
Ammonium sulfite	≤1.0%	≤1.0%
Alkalinity	0.3~1.5%	≤0.4%
Insoluble matter ( precipitation of Ca and Mg)	≤0.2%	---
Heavy metals(as Pb)	≤0.001%	≤0.002%
Fe	≤0.00025%	≤0.001%
Sulfide(as s)	≤0.0002%	≤0.0002%
Ignition residual	≤0.1%	≤0. 2%
Specific gravity	1.310~1.335	----

7. Packing: Liquid 250kg plastic drum. Solid 25KG plastic woven bag.

8.Uses: Used as fixer for takingPhotographic s,key component of silvering electrobath, shielding effect agent, casting protectant of Al-Mg alloy, bactericide and analytical reagent.

Ammonium Thiosulphate

Trichloroisocyanuric acid (TCC

Sodium Dichlordisocyanurate (

H-Acid Monosodium Salt

PHTHALIC ANHYDRIDE

COPPER PHTHALOCYANINE