CAS No.: | 7778-80-5 |
---|---|
Formula: | K2so4 |
Certification: | ISO |
Purity: | Not Less Than 98.5% |
Type: | Potassium Sulfate |
Appearance: | Powder |
Samples: |
---|
Customization: |
---|
Suppliers with verified business licenses
Item | Limit |
Characters | Appearance : white or almost white, crystalline powder or colourless crystals |
Solubility : soluble in water, practically insoluble in anhydrous ethanol. | |
Identification |
|
|
|
Appearance | Solution S is clear and colourless |
Acidity or Alkalinity | Not more than 0.5mL of 0.01M hydrochloric acid or 0.01M sodium hydroxide is required to change the colour of the indicator. |
Chlorides | Not more than 40ppm |
Calcium | Not more than 200ppm |
Iron | Not more than 10ppm |
Magnesium | Not more than 20ppm |
Sodium | Not more than 0.10 per cent |
Loss on drying | Not more than 1.0 per cent |
Assay | 98.5 per cent to 101.0 per cent of K2SO4(dried substance) |
Item | Limit |
Characters | Appearance : white or almost white, crystalline powder or colourless crystals |
Solubility : soluble in water, practically insoluble in anhydrous ethanol. | |
Identification |
|
|
|
Appearance | Solution S is clear and colourless |
Acidity or Alkalinity | Not more than 0.5mL of 0.01M hydrochloric acid or 0.01M sodium hydroxide is required to change the colour of the indicator. |
Chlorides | Not more than 40ppm |
Calcium | Not more than 200ppm |
Iron | Not more than 10ppm |
Magnesium | Not more than 20ppm |
Sodium | Not more than 0.10 per cent |
Loss on drying | Not more than 1.0 per cent |
Assay | 98.5 per cent to 101.0 per cent of K2SO4(dried substance) |
Item | Limit |
Characters | Appearance : white or almost white, crystalline powder or colourless crystals |
Solubility : soluble in water, practically insoluble in anhydrous ethanol. | |
Identification |
|
|
|
Appearance | Solution S is clear and colourless |
Acidity or Alkalinity | Not more than 0.5mL of 0.01M hydrochloric acid or 0.01M sodium hydroxide is required to change the colour of the indicator. |
Chlorides | Not more than 40ppm |
Calcium | Not more than 200ppm |
Iron | Not more than 10ppm |
Magnesium | Not more than 20ppm |
Sodium | Not more than 0.10 per cent |
Loss on drying | Not more than 1.0 per cent |
Assay | 98.5 per cent to 101.0 per cent of K2SO4(dried substance) |
Suppliers with verified business licenses