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    Phosphorous Acid

    Product name:
    Phosphorous Acid
    CAS:
    13598-36-2
    化学品名:
    Xylometazoline
    Category:
    Fine Chemicals
    Specification:

    Trade Name: Phosphorous Acid
    Mol. Formula: H3PO3
    M.W.: 82.00
    Properties:
    Pure product is white crystals, specific gravity 1.651(21.2°C). M.P. 73.6°C, B.P. 200°C. Soluble in water and ethanol easily, and it will be oxidized into H3PO4 in the air slowly. Be decomposed into H3PO4 and phosphine when be heated to the temperature 180°C.H3PO3 is a kind of diacid, its acid-stage is higher than H3PO4. Be oxidized easily and has strong hygroscopy and corrosivity.
    Usage:
    It is the main stuff be used to manufacture the herbicide---glyphosate and also be used to manufacture phosphite etc.
    Specifications:

    Item

    Premium grade

    Grade I

    Grade II

    Grade III

    Solution

    Assay %, ≥

    99%

    99%

    99%

    98.5%

    70%

    Chloride (Cl-) %,≤

    0.001

    0.001

    0.002

    0.02

    0.001

    Iron (Fe) %, ≤

    0.0005

    0.001

    0.002

    0.005

    0.0005

    Sulphate (SO4) %, ≤

    0.001

    0.008

    0.008

    0.008

    0.001

    Phosphate (PO4) %, ≤

    0.1

    0.2

    0.2

    0.2

    0.1

    Smell

    odorless

    odorless

    odorless

    odorless

    odorless

    Appearance

    Pure white crystal

    white crystal

    white crystal

    white crystal

    Clear colorless
    liquid

    Remark:
    Package:25kg, 500kg or 1000kg/bag (Inside:PE,Outside:PP) for phosphorous acid crystal
    280kg/HDPE drum,1400kg/IBC or ISO-tank for phosphorous acid solution

     
     
    Contactor: