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        1. Detail

          Potassium carbonate

          Name: Potassium carbonate

          Molecular formula: K2CO3

          Molecular weight: 138.2

          HS CODE: 28364000

          Properties:

          Colorless or white hexagonal or orthorhombic crystal or granular powder. Relative density is 2.662, inversion point is 588 ℃, melting point is 1069 ℃, boiling point is 1689 ℃. Soluble in water (12G/100ML water at 25 ℃, 24.1G/100ML water at 100 ℃), insoluble in alcohol, acetone and carbon disulfide.

          Uses:
          Potassium carbonate functions as raw material for producing electronic valve, television pictrue tube and glass shell of computer monitors.

           

          Specification: industrial grade potassium carbonate (GB/T 1587-2000)

          Item Unit Superior grade TV glass grade First grade Qualified grade
          Assay (K2CO3 ) % ≧ 99.0 99.0 98.5 96.0
          Chloride (KCl) % ≦ 0.01 0.03 0.10 0.20
          Sulfur compound (K2SO4) % ≦ 0.01 0.04 0.10 0.15
          Iron % ≦ 0.001 0.001 0.003 0.010
          Water insoluble matter % ≦ 0.02 0.04 0.05 0.10
          Loss on ignition % ≦ 0.6 0.8 1.00 1.00

           

          Specification: food additive potassium carbonate (HG2452-93)

          Item Unit Standard value
          Potassium carbonate (K2CO3 ) % ≧ 99.0
          Chloride (KCl) % ≦ 0.01
          Sulfur compound (K2SO4) % ≦ 0.01
          Iorn % ≦ 0.001
          Water insoluble matter % ≦ 0.02
          Loss on ignition % ≦ 0.6
          Arsenic % ≦ 0.0003
          Heavy metal (Pb) % ≦

          0.002

           

          Packing:
          woven bag or plastic-plastic composite bag lined with plastic bag, net weight is 25/50/500/800/900/1000 KG.
          Storage and transportation:
          Keep in dry and well-ventilated warehouse. To protect from rain and damp. Separate from acids.

           





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