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Calcium oxide (formula: Ca O), commonly known as quicklime or burnt lime, is a widely used chemical compound. It is a white, caustic , alkaline , crystalline solid at room temperature . The broadly used term lime connotes calcium-containing inorganic compounds , in which carbonates , oxides , and hydroxides of calcium, silicon , magnesium ...
Ca(NO 2) 2: calcium nitrite: 13780–06–8 Ca(NO 3) 2: calcium nitrate: 10124–37–5 CaO: calcium oxide: 1305–78–8 Ca(OH) 2: calcium hydroxide: 1305–62–0 CaO 2: calcium peroxide: 1305–79–9 CaRe 2 O 8: calcium perrhenate: 13768–54–2 CaS: calcium sulfide: 20548–54–3 CaSO 4: calcium sulfate: 7778–18–9 CaSe: calcium ...
Calcium aluminates phase diagram Crystal structure of dodecacalcium hepta-aluminate, 12CaO·7Al 2 O 3 (C 12 A 7). [1] Calcium aluminates are a range of materials [2] obtained by heating calcium oxide and aluminium oxide together at high temperatures. They are encountered in the manufacture of refractories and cements.
The pure material is colorless, while pieces of technical-grade calcium carbide are grey or brown and consist of about 80–85% of CaC 2 (the rest is CaO (calcium oxide), Ca 3 P 2 (calcium phosphide), CaS (calcium sulfide), Ca 3 N 2 (calcium nitride), SiC (silicon carbide), C , etc.). In the presence of trace moisture, technical-grade calcium ...
Calcium peroxide or calcium dioxide is the inorganic compound with the formula CaO 2. It is the peroxide (O 2 2−) salt of Ca 2+. Commercial samples can be yellowish, but the pure compound is white. It is almost insoluble in water. [3]
Calcium oxide: Solid CaO −603.3 Calcium sulfate: Solid CaSO 4: −1309.1 Calcium sulfide: Solid CaS −477.4 Carbon: Carbon Solid C 0 Carbon Solid C 2.900 Carbon dioxide: Gas CO 2: −394.39 Carbonic acid: Aqueous H 2 CO 3: −623.1 Bicarbonate: Aqueous HCO 3 −: −586.85 Carbonate ion: Aqueous CO 3 2−: −527.8 Carbon disulfide: Gas CS 2 ...
Tricalcium aluminate forms upon heating a 3:1 mixture of calcium oxide and aluminium oxide above 1300 °C. The crystals are cubic, with unit cell dimension 1.5263 nm [2] and has density 3064 kg·m −3. It melts with decomposition at 1542 °C.
Calcium stearate is produced by heating stearic acid and calcium oxide: 2 C 17 H 35 COOH + CaO → (C 17 H 35 COO) 2 Ca + H 2 O. It is also the main component of soap scum, a white solid that forms when soap is mixed with hard water. Unlike soaps containing sodium and potassium, calcium stearate is insoluble in water and does not lather well. [2]