1、Chemical Name: Potassium Sulfate
2、Molecular Formula : K2SO4
3、Molecular Weight: 174.26
4、CAS: 7778-80-5
5、Character: It occurs as colorless or white hard crystal or as crystalline powder. It tastes bitter and salty. Relative density is 2.662. 1g dissolves in about 8.5mL of water. It’s insoluble in ethanol and acetone. The pH of 5% aqueous solution is about 5.5 to 8.5.
6、Usage: It is used as seasoning and salt substitute.
7、Packing: It is packed with polyethylene bag as inner layer, and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.
8、Storage and Transport: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
| Specification | FCC VII | JECFA E515 |
| Content(K2SO4) ,w/% ≥ | 99.0-100.5 | 99.0 |
| pH(50g/L,25℃) | 5.5-8.5 | 5.5-8.5 |
| Potassium and sulfuric acid test | ———— | Passes test |
| Lead(Pb),mg/kg ≤ | 2.0 | 2.0 |
| Selenium(Se),mg/kg ≤ | 5.0 | 30.0 |
