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     Name: Potassium carbonate
    Potassium carbonate

    Properties:
    colorless or white hexagonal or orthorhombic crystal or granular powder. Relative density 2.662 Softening point 588 ℃, melting point 1069 ℃, boiling point 1689 ℃. Soluble in water (12G/100ML water at 25 ℃, 24.1G/100ML water at 100 ℃), insoluble in alcohol, acetone and carbon disulfide.
    Specification: Industrial grade potassium carbonate (GB/T 1587-2000)


    Index

    Unit

    Superior

    Color tube grade

    First class

    Qualified

    Content(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)


    Index

    Unit

    Standard value

    Potassium carbonate(K2CO3)

    % ≧

    99.0

    Chloride(KCl)

    % ≦

    0.01

    Sulfur compound (K2SO4)

    % ≦

    0.01

    Iron

    % ≦

    0.001

    Water insoluble matter

    % ≦

    0.02

    Loss on ignition

    % ≦

    0.6

    Arsenic

    % ≦

    0.0003

    Heavy metal(Pb)

    % ≦

    0.002

    Packing:
    Woven bag or paper-plastic composite bag, lined with plastic bag, net weight 25/50/500/800/900/1000 KG.
    Storage and transportation:
    Keep in dry and well-ventilated warehouse. To protect from damp and rain.
    Notes:
    Separate from organic matters and sulfur.
    Uses:
    As raw material for producing electronic valve, television pictrue tube, glass envelope of computer monitor, food additive potassium sorbate, monopotassium phosphate. Moreover, it can also be used in ink, polyester, explosive, electroplating, leather, porcelain, buiding material, crystal and drugs.

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