Sodium zincate refers to anionic zinc oxides or hydroxides, depending on conditions.

In the applications of these materials, the exact formula is not necessarily important and it is likely that aqueous zincate solutions consist of mixtures.

[2] Simplified equations for these complex processes are: From such solutions, one can crystallize salts of containing the anions Zn(OH)42−, Zn2(OH)62−, and Zn(OH)64−.

Na2Zn(OH)4 consists of tetrahedral zincate ion and octahedral sodium cations.

[3] The salt Sr2Zn(OH)6 features zinc in an octahedral coordination sphere.