In chemistry the term zincate may refer to several substances containing the element zinc:
- usually the anion ZnO22−, more properly called
tetrahydroxozincate or
salts thereof, such as
sodium zincate Na
2Zn(OH)
4. - the polymeric anion [Zn(OH)3−] and its salts, for example NaZn(OH)3· H2O. [1]
- an oxide containing zinc and a less electronegative element e.g. Na2ZnO2. [2]
In the health supplement industry zincate may also mean a commercially available zinc supplement, typically formulated as zinc sulfate.[ citation needed]
Solutions prepared from dissolving zinc hydroxide or zinc oxide in a strong alkali like sodium hydroxide, which contains various zincate anions, are used in the metal plating industry, in processes such as immersion zinc plating and electroplating ( electrogalvanization). Any of these techniques may be called zincate process. [3]
Inorganic compound nomenclature
In the naming of inorganic compounds, "-zincate" is a suffix that indicates that a polyatomic anion contains a central zinc atom. Examples include tetrachlorozincate, ZnCl42−, the tetrahydroxozincate, Zn(OH)42− and tetranitratozincate, Zn(NO3)42−. More recent recommendations ( 2005), that are not widely used, would call the first two ions tetrachloridozincate(2−) and tetrahydroxidozincate(2−) respectively.
See also
References
- ^ R. Stahl; H. Jacobs (1998). "Synthese und Kristallstruktur von NaZn(OH)3· H2O und NaZn(OH)3". Zeitschrift für anorganische und allgemeine Chemie. 624 (1): 25–29. doi: 10.1002/(SICI)1521-3749(199801)624:1<25::AID-ZAAC25>3.0.CO;2-8.
- ^ D. Trinschek; M. Jansen (1996). "Na2ZnO2, ein neues Natriumzinkat". Z. Naturforsch. 51 b: 711–4. doi: 10.1515/znb-1996-0515. S2CID 96961116.
- ^ Porter, Frank C. (1991). Zinc Handbook. CRC Press. ISBN 978-0-8247-8340-2.