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Tianjin Yihengda Imp&Exp Co.,LTD

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chromic anhydride
chromic anhydride
Specification: 国家标准GB1610-89, 外观紫红色片状物
Detail: Chromic anhydride (CrO3) Content% ≥99.7 Water insoluble matter% ≤ 0.02 Sulfate (SO42 ˉ) content% ≤ 0.06 Sodium (Na) content% ≤ 0.5
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