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    potassium bifluoride
    Product name: potassium bifluoride
    Molecular formula:

    KHF2

    CAS NO.: 7789-29-9
    Index: 99
    Other:

    Molecular formula :KHF2      Molecular weight :78.11

    Application :A dielectric for the production of anhydrous hydrogen fluoride, pure potassium fluoride, and elemental fluorine. Also used in the manufacture of optical glass, engraved glass. It can be used as a fluxing flux for silver products, wood preservatives, masking agents, catalysts for phenylalkylation, and the like.

    Property :White or colorless transparent tetragonal crystal, slightly acidic odor, soluble in air, slightly soluble in alcohol, very soluble in cold water, decomposed in hot water, aqueous solution is strongly acidic, can corrode glass, toxic It is corrosive to the skin, stable in dry air, and absorbs moisture in humid air to release hydrogen fluoride. When heated to 310 ° C, HF escapes, and the vapor pressure of hydrogen fluoride to 400 ° C can reach 0.10325 MPa (latm), and the activity of molten potassium hydrogen fluoride is greater than that of potassium fluoride. poisonous. Corrosive. It should be stored in a plastic container. Specific gravity: 2.37 g/mL (25 ° C), melting point: 225-239 ° C.

    CAS NO.: 7789-29-9

    Project

    Indicator

    Industrial grade

    Export level

    Appearance identification

    White crystal

    White crystal

    content                          %

    ≥98.5

    ≥99.5

    Free acid                         %

    24.5-26

    24.5-26

    chloride(Cl)                     %

    ≤0.05

    ≤0.02

    Sulfate(SO4)                    %

    ≤0.05

    ≤0.01

    Fluorosilicate(Based on K2SiF6)  %

    ≤0.3

    ≤0.30

    Heavy metal(In Pb)              %

    ≤0.005

    ≤0.005

    Bulk density(20 mesh)          kg/L

    0.86-0.92

    0.88-0.92

    nickel(Ni)                       %

    ≤0.001

    ≤0.001

    Ferrum(Fe)                      %

    ≤0.02

    ≤0.02

    PH(5% aqueous solution)

    2.5-2.7

    2.5-2.7

    Loss on drying(105℃/2H)         %

    ≤0.5

    ≤0.01

    Supply reference

    Production Process

    Electrolysis

    Recrystallization refining

    Packing specification

    25KG plastic paper film four layers

    25KG plastic paper bag four layers

    Reference price(RMB)  yuan/ton

    15500yuan/ton

    17500yuan/ton

    Quote validity period

    3 months

    3 months 

     

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