Molecular formula: ZnO
Molecular weight: 81.38
Appearance: White or light yellow crystalline powder
Characteristic: Insoluble in water, soluble in acids, ammonia water, alkali metals and hydroxides.
Usage: Rubber products, ceramics, pharmaceutical products, food, cosmetics, paints, printing and dyeing products, magnetic materials, electronic products, feed, cathode ray tubes, etc.
Standard: HG/T 2890-2011 Chemical Reagent, Zinc Oxide.
Item | Analytically pure | Chemically pure |
Zinc oxide content | ≥99.0 | ≥99.0 |
Clarity test | ≤3 | ≤5 |
Substances insoluble in acid | ≤0.01 | ≤0.02 |
Free alkali | Qualified | Qualified |
Chloride（Cl） | ≤0.001 | ≤0.005 |
Sulfur compound （SO4） | ≤0.01 | ≤0.02 |
Nitrate （NO4） | ≤0.003 | ≤0.005 |
Arsenic （As） | ≤0.00005 | ≤0.0002 |
Sodium (Na) | ≤0.05 | ≤0.10 |
Magnesium（Mg） | ≤0.005 | ≤0.01 |
Potassium （K） | ≤0.01 | ≤0.02 |
Calcium （Ca） | ≤0.005 | ≤0.01 |
Manganese （Mn） | ≤0.0005 | ≤0.001 |
Iron （Fe） | ≤0.0005 | ≤0.0025 |
Lead（Pb） | ≤0.005 | ≤0.05 |
Reduced potassium permanganate（O） | ≤0.002 | ≤0.004 |
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