Calcium hydroxide
group nameChemical Raw Materials
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Min Order1 piece
brand nameTSH
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update timeWed, 20 Jul 2011 10:59:42 GMT
Packging & Delivery
Min Order1 piece
Briefing
Detailed
CAS No.: 1305-62-0
HS: 2825909000
Specifications
calcium hydroxide
molecular formula: Ca(OH)2
CAS: 1305-62-0
Appearance: white crystal powder
calcium hydroxide
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 |
