product details

Beijing KangPuHuiWei Technology Co.,Ltd.

Powdered calcium oxide

Author：admin Time：2019-01-04 09:44:41

Product Information

Calcium Oxide CaO

Alias: quicklime

Relative molecular Weight: 56.08

Properties:Colorless or white lumps orpowder.Absorb carbon dioxide and moisture in the air.The relative density of3.25 ~ 3.38, the melting point of 2614 ° C, the boilingpoint of 2850 ° C.With water generated calcium hydroxide and release a lot ofheat,Slightly soluble in water, soluble in acid.Corrosive. Irritating to eyes,respiratory system and skin.

Reference standard: GB 1262-77

Specifications: Content and content of impurities in %

Test Items	AR	CP
Content (after ignition)	98.0	97.0
Clarity test	Qualified	Qualified
Acetic acid insoluble	0.05	0.01
Burning weightlessness	2	5
Chloride （Cl）	0.003	0.01
Nitrate（NO3）	0.004	0.01
Sulfate（SO4）	0.1	0.25
Iron（Fe）	0.015	0.03
Alkalimetal and magnesium （MgO）	0.5	1.0
Ammoniadoes not precipitate	0.2	0.4

Usage:Use for analyzing thereagents,Spectral analysis reagents,Phosphor Co-solvent,Vegetable oildepigmenting agent.Used as carbon dioxide absorbent in Gas analysis.High-purityreagents for semiconductor production in the epitaxial, exo-processes.

High purity AR Grade chemical purity

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