potassium carbonate

Potassium Carbonate CAS No.: 584-08-7 Molecular Formula: K2CO3 Moleclar Weight:138.21 Appearance: white powder, small round or granular crystal ball. Application: Purity(as K2CO3) --------------------------------- 99% Min Chliride(as KCL) ---------------------------------- 0.03% Max Sulphate(as K2SO4) ---------------------------- 0.04% Max Iron ---------------------------------------------------- 0.001% Max Isoluble matter in water ------------------------ 0.04% Max Burnt Loss ------------------------------------------ 0.8% Max Relative Density ----------------------------------- 2.428 Melting Point --------------------------------------- 891 Usage:Applied in optical glass improving clarity, strength and refractive index; Packing: In 25 kg net plastic woven bag inner with plastic bag or kraft paper bag. Storage: Store in dry and ventilated house away from moisture. Don't store in goods yards or expose to the air. Protect the material from rain when loading and unloading. Be sure to keep the package dry and free from contaminant. Avoid handling and transporting together with acid substances. In the event of a fire, use water as extinguishing agent. HS Code: 28364000