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Specifications of Calcium Hydroxide 96% (Cas No 1305-62-0)
molecular formula: Ca(OH)2
CAS: 1305-62-0
Appearance: white powder
Properties:
Exquisite white crystalloid powder. A large slightly bitter alkali flavour. Easy to absorb carbon dioxide in the air and become calcium carbonate, hot to 522 °C dehydration into cao. The relative density 2.24 °C (at the same time, melting point 580 dehydrate). Soluble in acid, ammonium salt, glycerin, soluble in water, alcohol, is insoluble in water solution to the skin, alkaline, fabric have corrode action.
Use:
Used as carbon dioxide acidity gas such as absorbing hard water softener, disinfectants, making acid agents. Widely used in pharmaceutical, in organic synthesis.
Details:
Test item | Specification | |
Reagent grade | Pharmaceutical grade | |
Appearance | Conform | Conform |
Assay /% | ≥95.0 | ≥93.0 |
Hydrochloric acid /% | ≤0.05 | ≤0.1 |
Chloride (Cl)/% | ≤0.01 | ≤0.02 |
sulfur(SO4)/% | ≤0.2 | ≤0.3 |
Ferric (Fe)/% | ≤0.01 | ≤0.02 |
Alkali metal and magnesium (MgO)/% | ≤0.5 | ≤0.75 |
Heavy metal(Pb) /% | ≤0.002 | ≤0.003 |
Ammonia water insoluble/% | ≤0.25 | ≤0.5 |
