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valid period - - [ introduction ] zinc oxide of indirect method >> molecular formula: zno molecular weight: properties: this product is white powder, with specific weight of and melting point of °c. it is a kind of amphoteric oxide. , dissolving in acid, alkali, ammonium chloride and ammonia water, not
, magnetic, electronics, fodder, picture tube, etc. item index medicine type rubber type coating type super grade top-grade first grade top-grade first grade zinc oxide(zn calculating as dry material)%≥ lead oxide(as pb)≤% ≤ - - manganese's oxide(as mn )≤ - - cupric oxide(as cu )% ≤ - - insoluble matter...
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