亚洲色 自偷自拍另类

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    Welcome to the official website of Changshu Xinhua Chemical Co., Ltd.!

    Changshu Xinhua chemical co., ltd.

    常熟市新華化工有限公司

    Changshu Xinhua chemical co., ltd.

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    · Have a scientific enterprise management system · Is a high-tech enterprise in Jiangsu Province and Changshu Polymer New Material Industry Base

    Potassium Bifluoride

    Molecular formula: KHF2
    Molecualr weight: 78.10
    Properties: Colorless crystal of tetragonal system; freely soluble in water; acidic in aqueous solution; no loss of hydrogen fluoride in dry air while hydrogen fluoride released by absorbing moisture in moist air.
    Uses: electrolyte in the preparation of fluorine; in manufacture of anhydrous hydrogen fluoride, potassium fluoride; optical glass and etched glass; also used as welding flux of various metal, wood preservative and catalyst of benzene alkylation.
    Content: ≥98%
    Impurities:

    SiO3

    ≤0.2%

    Cl

    ≤0.05%

    SO4

    ≤0.05%

    Fe

    ≤0.005%

    Pb

    ≤0.005%

    Package: 25kg plastic woven bag.
    Gaution at transportation: Inorganic toxicant; specified number of hazardous goods: 83020
    UN No.: 1811 class of risk: 8.3
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    亚洲色 自偷自拍另类
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