Property: Colorless, transparent single oblique crystals, specific gravity
1.729. Its soluble in water easily, with strong reducing property.
Specification:
|
Grade
|
Photo
|
Tech
|
|
Na2S2O3·5H2O
|
99.0% Min
|
99.0% Min
|
|
Insoluble matter in water
|
0.01% Max
|
0.01% Max
|
|
Na2S
|
0.001% Max
|
0.001% Max
|
|
Fe
|
0.002% Max
|
0.002% Max
|
|
PH value (200g/L solution)
|
6.5-9.5
|
6.5-9.5
|
Usage: Used in photographic, electroplate, purifying soft water and tanning processing hides, it also can be used as reducing agent, deoxidizer, sulfur dyeing agent, anti-white agent, detergent, disinfectant and color coat agent, etc.