dihydroxide
Dihydroxide is a term used in chemistry to denote a compound containing two hydroxide (OH−) groups. It is not a single, unique molecule, but a descriptor that appears in the systematic naming of metal hydroxides with the formula M(OH)2, where two hydroxide ligands are associated with a central metal atom or ion.
In inorganic nomenclature, dihydroxide commonly indicates two hydroxide ligands around a metal. For example, calcium dihydroxide
Properties and applications vary by metal. The solid hydroxides generally have limited solubility in water; Ca(OH)2
Terminology note: dihydroxide is a precise descriptor for M(OH)2 species, but in practice the common names or