K2SO4  M.W : 174.27 
 CAS : 7778-80-5 
 EC : 231-915-5 
P : P102-P202 Specifications :
- Assay  ? 99%
 - Appearance  White/colourless cryst.
 - Substances insoluble in water (H2O)  ? 0.01%
 - pH (5% water)  5.5-8.5
 - Chloride (Cl-)  ? 0.001%
 - Total Nitrogen  ? 0.001%
 - Iron (Fe)  ? 0.0005%
 - Heavy metals (Pb)  ? 0.001%
 - Calcium (Ca)  ? 0.005%
 - Copper (Cu)  ? 0.0005%
 - Magnesium (Mg)  ? 0.002%
 - Sodium (Na)  ? 0.02%
 - Arsenic (As)  ? 0.0001%
 - Cadmium (Cd)  ? 0.0005%
 
packaging: plastic bottle, volume: 500 g, pcs per sales unit: POSU-00A-500