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    Shaoxing Huawei Chemical Co.,Ltd.
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    · Triphenylphosphine
    · Tetrachlorophthalic Anhydride
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    · Sodium sulfite
    · Sulfuric acid
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    · Tel: +86-575-85620368   13957559832
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    · Tel: +86-575-85726755   13867572782
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    · Tel: +86-575-85767147   13505751287
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    Sodium sulfite

    【English name】:Sodium sulfite
    【Synonym】:Sulfur oxide, sodium sulfite
    【CAS】: 7757-83-7
    【Molecular formula】:Na2SO3
    【Molecular weight】:126.03
    【Index】:

    Fine anhydrous sodium sulfite

    Index
    First grade

    Sodium sulfite(Na2SO3), % ≥

    96.0

    (Fe), ‰ ≤

    0.0+86-5

    Water insoluble, % ≤

    0.03

    Free alkali(Na2CO3), %≤

    0.4

    Rough sodium sulfite

    Index

    Qualified product

    Appearance

    Grey powdery

    Sodium sulfite, %     ≥

    65~70

    Sodium sulfate, %      ≤

    10

    Water, %        ≤

    20~15

    Other, %            ≤

    5

    【Packing】:Fine anhydrous sodium sulfite in plastic woven bag, nwt 50kg/bag, Rough sodium sulfite plastic woven bag, nwt 40kg/bag.
    【Use】:Fine sodium sulfite is used in the pharmaceutical industry, dyes and production of paper making, tanning, dyeing and printing industry and food and so on. Sodium sulfite crude is used in paper making, cement production, such as water-reducing agent.

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