[Ingredients]

Na2S2O3•5H2O（248.19）

[Properties]

Colorless and transparent monolinic crystal.

Soluble in water and turpentine, insoluble in alcohol. Easily efflorescent in dry or warm air, slightly deliquescent in damp air. Sodium thiosufate is also a reduction agent. Lost crystal water and disintegrated while it been burning

[Characteristics]

Appearance: Monoclinic system crystal. Fine grade is colorless and trans parent. First grade is coloriess or slightly yellow crystal.

Purity: ≥98%

Insoluble matters in water, % ≤ 0.03

Sulfur compound content(Na2S), % ≤0.003

Fe content, % ≤ 0.003

PH value(200g/L):6.5-9.5

[Application]

It is the fixing agent of photograph, antichlor and printing auxiliary of textile, printing and dyeing industry. It also used in manufacturing of synthetic dye, insecticides, synthetic fabrics, It is still used in medicine, leather, paper making, mineral concentration industries etc

[Transport, Storage and Packing]

In 25kg or 50kg net each plastic weave bag lined with plastic bag

It must be stored in drying and ventilation, against damp and soluble. Against sunlight directly and rain to transport it..