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Calcium hydroxide is moderately soluble in water, as seen for many dihydroxides. Its solubility increases from 0.66 g/L at 100 °C to 1.89 g/L at 0 °C. [8] Its solubility product K sp of 5.02 × 10 −6 at 25 °C, [1] its dissociation in water is large enough that its solutions are basic according to the following dissolution reaction:
Solid properties Std enthalpy change of formation, Δ f H o solid-985.2 kJ/mol [4] Standard molar entropy, S o solid: 83.4 J/(mol K) [4] Heat capacity, c p: 87.5 J/(mol K) [4] Liquid properties Std enthalpy change of formation, Δ f H o liquid? kJ/mol Standard molar entropy, S o liquid? J/(mol K) Heat capacity, c p? J/(mol K) Gas properties Std ...
Properties Chemical formula. Ca O 2: Molar mass: 72.076 g·mol −1 Appearance white or yellowish powder Odor: odorless ... Ca(OH) 2 + H 2 O 2 → CaO 2 + 2 H 2 O.
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 ...
Calcium bisulfite can be prepared by treating lime (chemical formula Ca(OH) 2) with an excess of sulfur dioxide and water. [2] Upon synthesis of calcium bisulfite solution, it will have a green to yellow opaque appearance as an aqueous solution. [3]
The formula, Cu 2 CO 3 (OH) 2 shows that it is halfway between copper carbonate and copper hydroxide. Indeed, in the past the formula was written as CuCO 3 ·Cu(OH) 2. The crystal structure is made up of copper, carbonate and hydroxide ions. [36] The mineral atacamite is an example of a basic chloride. It has the formula Cu 2 Cl(OH) 3.
Calcium hypochlorite is an inorganic compound with chemical formula Ca(Cl O) 2, also written as Ca(OCl) 2.It is a white solid, although commercial samples appear yellow. It strongly smells of chlorine, owing to its slow decomposition in moist air.
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. [2] CaH 2 is a saline hydride, meaning that its structure is salt-like. The alkali metals and ...