molecular formula: K2S2O8
CAS: 7727-21-1
Appearance:
Colorless or white crystal
Properties:
Can resolve gradually, high temperature moisture can accelerate decomposition, 100 ℃ all decomposition. The relative density 2.477. Have strong oxidizing. Soluble in water, soluble in alcohol. Become acidic aqueous solution. With inflammables contact can also cause burns.
Use:
Analytics reagents, chemical production as the oxidant, initiator. Also used in the film developing, fiber bleaching.
Details:
|
Test item |
Specification |
|
AR |
CP |
|
Appearance |
Conform |
Conform |
|
SO2assay /% |
≥99.5 |
≥99.0 |
|
Clarify degrees test |
Conform |
Conform |
|
Water insoluble/% |
≤0.005 |
≤0.01 |
|
Chloride and chlorate (Cl)/% |
≤0.002 |
≤0.005 |
|
Manganese (Mn) /% |
≤0.0001 |
≤0.0003 |
|
Ferric (Fe) /% |
≤0.0002 |
≤0.0005 |
|
Heavy metal (Pb) /% |
≤0.001 |
≤0.002 |
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