|
Item
|
Fine Grade
|
|
Purity % ≥
|
99
|
|
Water insoluble % ≤
|
0.01
|
|
Sulphur matter (by S) % ≤
|
0.001
|
|
Fe % ≤
|
0.001
|
|
PH (200g/L solution)
|
6.5-9.5
|
Properties: Sodium Thiosulfate, the popular name is big soda, Hypo, belongs in transparent single crystal system. It is odorless and salty. Its specific gravity is 1.729.
Used: Use for fixer, electroplate, purify water, reducing agent in chemical industry, etc.
Packing: In 25kg P.P. bag