We are a main supplier of 99.5% Sodium Thiosulphate in China. We can supply you 99.5% Sodium Thiosulphate with competitive price. The details of the product as follow:
sodium thiosulphate,the popular name is big soda, Hypo, belongs in transparent single crystal system.it is adourless and salty. Its specific gravity is 1.729. When be heated over 100 ,it losts the 5 crystal water. It is easily soluble in water and unsoluble in alcohol. It will be decomposed in acid liquid and have strong irreducibleness. It is easily dehydration when dry air over 33 and deliquescence in moist air.
|
Photo grade |
Tech grade |
Anhydrous |
appearance |
Colorless transparent crystal |
Colorless transparent crystal |
White powder |
Na2S2O3 |
> 99.0% |
> 98.5% |
> 97.0% |
Water insoluble matter |
< 0.01% |
< 0.03% |
< 0.03% |
sulfide |
< 0.001% |
< 0.003% |
< 0.001% |
iron |
< 0.001% |
< 0.003% |
< 0.005% |
PH |
6.5-9.5 |
6.5-9.5 |
6.5-9.5 |
Water solution reaction |
Pass test |
Pass test |
... |
Granularity(g/g) |
12-16 |
.... |
... |
Application: used in fixers, plating, leather, reductant, dechlorinating agent, sulfur dyeing agent, as a blush preventive agent, and as a disinfectant. and decolor agent.
Storage & handling:Store the product in a cool and dry place ; prevent from direct sunlight , water and moisture ; avoid contact with strong acid,oxidants .Do not stores it for long time.