potassium metabisulfite (potassium pyrosulfite) specification test datum purity 97.2min. 97.6% aqueous solution reaction test result qualified so2 56 56.2 k2s2...
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specification test datum purity 99.5% min. 99.55% appearance white powder approved free alkline 0.1% 0.05% alcohol insoluble 1.0% 0.4% cl ...
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appearance:white crystalline powders, colorless crystals or granules citric acid anhydrous specifications item standard name citric acid anhydrous cas no. ...
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l-arabinose product information: cas number: 87-72-9, 5328-37-0 synonym: l-arabinose; l-(+)-arabinose; l-arabinopyranose molecular formula:...
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