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  2. Calcium oxide - Wikipedia

    en.wikipedia.org/wiki/Calcium_oxide

    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 ...

  3. List of CAS numbers by chemical compound - Wikipedia

    en.wikipedia.org/wiki/List_of_CAS_numbers_by...

    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 ...

  4. Self-heating food packaging - Wikipedia

    en.wikipedia.org/wiki/Self-heating_food_packaging

    Calcium oxide is used in the following reaction: CaO(s)+ H 2 O(l) → Ca(OH) 2 (s) Copper sulfate and powdered zinc can also be used, but this process is less efficient: CuSO 4 (s) + Zn(s) → ZnSO 4 (s) + Cu(s) Anhydrous calcium chloride is often used as well. In this case, no chemical reaction occurs, instead the heat of solution is generated.

  5. Lime (material) - Wikipedia

    en.wikipedia.org/wiki/Lime_(material)

    Lime is an inorganic material composed primarily of calcium oxides and hydroxides. It is also the name for calcium oxide which is used as an industrial mineral and is made by heating calcium carbonate in a kiln. Calcium oxide can occur as a product of coal-seam fires and in altered limestone xenoliths in volcanic ejecta. [1]

  6. Ettringite - Wikipedia

    en.wikipedia.org/wiki/Ettringite

    Ettringite is a hydrous calcium aluminium sulfate mineral with formula: Ca 6 Al 2 (SO 4) 3 (OH) 12 ·26H 2 O.It is a colorless to yellow mineral crystallizing in the trigonal system.The prismatic crystals are typically colorless, turning white on partial dehydration.

  7. Soda lime - Wikipedia

    en.wikipedia.org/wiki/Soda_lime

    Soda lime canister used in anaesthetic machines to act as a carbon dioxide scrubber. Soda lime, a mixture of sodium hydroxide (NaOH) and calcium oxide (CaO), is used in granular form within recirculating breathing environments like general anesthesia and its breathing circuit, submarines, rebreathers, and hyperbaric chambers and underwater habitats.

  8. Calcium carbide - Wikipedia

    en.wikipedia.org/wiki/Calcium_carbide

    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 ...

  9. Calcium aluminates - Wikipedia

    en.wikipedia.org/wiki/Calcium_aluminates

    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.