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Ca(OH) 2 + H 2 O 2 → CaO 2 + 2 H 2 O. The octahydrate precipitates upon the reaction of calcium hydroxide with dilute hydrogen peroxide. Upon heating it dehydrates. Applications. It is mainly used as an oxidant to enhance the extraction of precious metals from their ores.
Calcium bicarbonate, also called calcium hydrogencarbonate, has the chemical formula Ca (HCO 3) 2. The term does not refer to a known solid compound; it exists only in aqueous solution containing calcium (Ca 2+ ), bicarbonate ( HCO−. 3 ), and carbonate ( CO2−. 3) ions, together with dissolved carbon dioxide (CO 2 ).
Calcium hydroxide (traditionally called slaked lime) is an inorganic compound with the chemical formula Ca ( OH) 2. It is a colorless crystal or white powder and is produced when quicklime ( calcium oxide) is mixed with water. Approximately 125M tons/y are produced worldwide.
Calcium hydride – CaH 2; Calcium hydroxide – Ca(OH) 2; Calcium monosilicide – CaSi; Calcium oxalate – CaC 2 O 4; Calcium hydroxychloride – CaOCl 2; Calcium ...
Calcium hydride is the chemical compound with the formula CaH 2, an alkaline earth hydride. This grey powder (white if pure, which is rare) reacts vigorously with water liberating hydrogen gas. CaH 2 is thus used as a drying agent, i.e. a desiccant. CaH 2 is a saline hydride, meaning that its structure is salt-like. The alkali metals and the ...
Calcium hydroxychloride or calcium chloride hydroxide is an inorganic compound with the chemical formula Ca ( O H) Cl. It consists of calcium cations ( Ca2+) and chloride ( Cl−) and hydroxide ( −OH) anions. A white solid, it forms by the reaction of hydrogen chloride with calcium hydroxide [3] According to X-ray crystallography, it adopts a ...
2 OH − → O 2− + H 2 O. For portlandite this gives thus the following mass balance: Ca(OH) 2 → CaO + H 2 O. Thus portlandite can be written as CaO · H 2 O or CH. Main phases in Portland cement before and after hydration. These oxides are used to build more complex compounds. The main crystalline phases described hereafter are related ...
Ca(NO 2) 2 + Ca(OH) 2 + H 2 O → Ca(NO 2) 2 •Ca(OH) 2 •H 2 O. 2. Liberation of calcium nitrite Ca(NO 2) 2 •Ca(OH) 2 •H 2 O--H 2 O → Ca(NO 2) 2 (aq) + Ca(OH) 2 + H 2 O Uses. Calcium nitrite has a great variety of uses. It can be use as antifreeze due to its high solubility, either in solution or powder. It can promote the hydration of ...