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

    Fluorosilicic Acid

    Molecular formula: H2SiF6
    Molecualr weight: 144.09
    Properties: Colorless, transparent and smoky liquid with penetrating odor; highly acidic; soluble in water and volatile; with disinfecting action; corrosive to glass, ceramics, lead and other metals; highly corrosive to human skin and harmful to people's respiratory organs; keep it in a container made of plastics.
    Usage: Mainly applied to the preparation of aluminium fluort(le, cryolite and sodium fluorosilicate.
    Content (H2SiF6): 34%
    Impurities:

    Dissociate acid(HF)

    ≤0.9%

    Sulfate(SO4)

    ≤0.1%

    Iron(Fe)

    ≤0.004%

    Heavy metal(Pb)

    ≤0.005%

    Dissociate(SiO2)

    ≤0.5%

    Packing: 25kg or 250kg plastic drum
    Caution at transportation: Corrosive; UN code: 1778; specified number of hazardous goods:91036; class of risk: 8.
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    亚洲色 自偷自拍另类
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