CAS No.: 1305-78-8 Formula: CaO
Synonyms: lime usp; calcium oxide, not obtained by calcining natural materials; Calcium oxide (99.95%-Ca); Calciumoxidepurifiedpowder; Lime; CalciumoxideCamicronwhitepowder; Calciumoxidewhitepowder; Calcium oxide powder; LIME OXIDE; FLUXING LIME; LIME,CAUSTIC; CAUSTIC; BURNTLIME; CALX; CALCIUM(II)OXIDE; airlock; bellcmle; bellcml; burnedlime; burntlime[qr]; Calcia; calcia[qr]; Calciumoxide (CaO); calciummonoxide[qr]; calciumoxide(cao); calciumquicklime; Caloxol CP2; oxocalcium; calcium oxygen(-2) anion;
Calcium oxide is an inorganic compound whose chemical formula is CaO, commonly known as quicklime. Physical properties are white powder on the surface, off-white when impure, light yellow or gray when containing impurities, and absorbent. Calcium oxide is an alkaline oxide and is sensitive to moisture. It is easy to absorb carbon dioxide and moisture from the air. Reacts with water to form calcium hydroxide (Ca(OH)2) and generates a lot of heat, which is corrosive. Calcium oxide is also an inorganic water scavenger, which reacts with water to produce calcium hydroxide and also absorbs carbon dioxide. Calcium oxide powder can be added to some special sealants, water-curing adhesives and other systems. Chemicalbook Calcium Oxide can be used as analytical reagent, carbon dioxide absorber in gas analysis, spectral analysis reagent, high-purity reagent for epitaxy and diffusion processes in semiconductor production, laboratory ammonia drying and alcohol dehydration, etc.
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