POTASSIUM SULPHATE CRYSTALS
POTASSIUM SULPHATE CRYSTALS
| Article No. | 542908 |
| Grade | ACS |
| Purity | 99.9% |
| CAS No. | 7778-80-5 |
| Molecular Formula | K2SO4 |
| Molecular Weight | 174.27 |
| H.S. Code | 3104.3000 |
| Shelf Life | 60 Months |
Physical properties
| Physical State at 20°C | Solid |
| Colour | White crystalline |
| Odour | Odorless |
| pH Value | ~7 |
| Melting Point/Freezing Point | 1067°C |
| Boiling Point | 1689°C |
| Density | 2.662 g/cm³ |
| Solubility in Water | Soluble |
Specifications
| Appearance | White or almost white, crystalline powder or colourless crystals |
| Solubility | Soluble in water, practically insoluble in ethanol |
| Identification | a- Gives reaction of potassium b- Gives reaction of sulphate |
| pH (10%) | 5 – 7.5 |
| Acidity or Alkalinity | Passes test |
| Chlorides (ppm) | Max 40 |
| Calcium (ppm) | Max 200 |
| Loss on Drying (%) | Max 1.0 |
| Assay (%) | 98.5 – 101 |
| Packings | 500 gm |
