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Product Deail
Potassium sulfate
【Description】Colorless crystalline or white crystalline powder, heavy and hard. Relative density 2.662, melting point 1069℃, boiling point 1689℃. Soluble in water, insoluble in alcohol.
|
Test item |
AR |
CP |
Other |
|
Assay(K2SO4) /% |
≥99.0 |
≥98.5 |
Custom |
|
pH(50g/L,25℃) |
5.0-8.0 |
5.0-8.0 |
|
| Clarity of solution | Passes test |
Passes test |
|
|
Water insoluble /% |
≤0.005 |
≤0.01 |
|
| Chloride(Cl) /% |
≤0.000 5 |
≤0.001 |
|
| Nitrate(NO3) /% |
≤0.000 5 |
≤0.001 |
|
|
Sodium(Na) /% |
≤0.03 |
≤0.1 |
|
| Arsenic(As) /% |
≤0.000 1 |
≤0.000 5 |
|
| Calcium(Ca) /% |
≤0.01 |
≤0.02 |
|
| Iron(Fe) /% |
≤0.000 2 |
≤0.000 5 |
|
|
heavy metal(as Pb) /% |
≤0.000 5 |
≤0.001 |
【Use】Used as an analytical reagent; Preparation of potassium salt; Optical glass; High-end fertilizer; Dye intermediates and the pharmaceutical industry.
