CaOH2Et

CaOH2et is not a standard or widely recognized chemical name or formula in major chemical databases. The designation appears likely to be a typographical error or a shorthand that is ambiguous without additional context. It could be intended to refer to calcium hydroxide (Ca(OH)2), calcium ethoxide (Ca(OEt)2), or a solvated/adduct form such as Ca(OH)2·Et where “Et” stands for an ethyl group. Because of this ambiguity, a precise, single article for CaOH2et cannot be given without clarification.

If the intended compound is calcium hydroxide, Ca(OH)2 is an inorganic base that appears as a white, relatively insoluble solid. It is produced by hydrating calcium oxide (quicklime) and is commonly known as slaked lime. It forms a saturated limewater solution and has a pH around 12. Calcium hydroxide is widely used in construction (mortar and plaster), water treatment, soil stabilization, and as a food additive (E526). It reacts exothermically with acids to form corresponding calcium salts and water.

If the intended compound is calcium ethoxide, Ca(OEt)2 is an organometallic compound that is moisture sensitive and typically appears as a white to pale yellow solid. It is prepared by reacting calcium metal with ethanol and is used as a strong base and nucleophile in organic synthesis and polymerization catalysis. It readily hydrolyzes in air or with moisture, releasing ethanol and forming calcium hydroxide, and must be stored under strictly dry conditions.

In summary, CaOH2et likely requires clarification to determine whether it refers to Ca(OH)2, Ca(OEt)2, or another related species.