Potassium sulphate
Sulphate of potash
| Code | Pack Size | Price | |
|---|---|---|---|
| 225U1 | 50g | £6.99 | Add to Cart |
| 225E1 | 500g | £14.19 £12.69 | Add to Cart |
| 225F1 | 1Kg | £18.29 £17.79 | Add to Cart |
Product Info
CAS-Number: 7778-80-5
In Stock: Yes
Hazchem: No
Documents
CAS-Number: 7778-80-5
In Stock: Yes
Hazchem: No
Documents
Potassium Sulphate
- Formula: K2SO4
- UN No. N/R
- CAS No. 7778–80–5
- Appearance: white crystals
- % purity: 99% minimum
- % Potassium: 42%
- % Sulphur: 18%
- Other names: Potassium sulphate, potassium sulfate, sulphate of potash
- Molecular formula: K2SO4
- Molar mass: 174.25 g/mol
- Density: 2.66 g/cm3
- Melting point: 1069 C
- Solubility: 111g/L H2O at 20C
Potassium sulphate is a non-flammable white crystalline salt which is soluble in water. It is commonly used in fertilizers as it provides both potassium and sulphur.
Uses For Potassium sulphate
- In the laboratory: Potassium sulphate is a standard laboratory reagent. It is used to determine nitrogen and protein in food in the Kjeldahl method. It has been used to research electrostatic effects on pKa values of amino acid residues in the staphylococcal nuclease. When a buffer with a high zwitterionic salt concentration is used, Potassium sulfate can be used to improve protein separation via capillary zone electrophoresis. It has been reported to be useful to adsorb immune complexes on agarose derivative adsorbents.
- As a fertilizer: Providing potassium to crops sensitive to chloride and salt e.g. tomatoes, avocados, lettuce, melons, french beans, tobacco, citrus, kiwifruit, raspberries and strawberries. It contains a low salt index helping to avoid the plant taking up excess water. It mixes well with all other fertilisers.
- In the manufacture of glass
- As a flash reducer
- Drilling applications: Potassium sulphate is used to formulate water-based drilling fluids where a source of potassium ions is required to inhibit shale hydration and chloride salts are prohibited for environmental reasons. Thus potassium sulphate is almost exclusively used in land drilling operations, where discharge and disposal of chloride salts is highly regulated.
Health & Safety: S 24/25 Avoid contact with skin and eyes.
