Zinc acetate

China Product


Basic properties and structures

Like virtually all zinc compounds, zinc acetate consists of Zn2+ ions. The acetate group is capable of binding to metal ions in a variety of ways through its two oxygen atoms and several connectivities are observed for the various hydrates of zinc acetate. Anhydrous zinc acetate adopts a polymeric structure consisting of zinc coordinated to four oxygen atoms in a tetrahedral environment, each tetrahedron being connected to neighbors by the acetate groups. The acetate ligands are not bidentate. In contrast, most metal diacetates feature metals in octahedral coordination with bidentate acetate groups. In zinc acetate dihydrate the zinc is octahedral, wherein both acetate groups are bidentate.

Basic zinc acetate alkaline booster

Heating Zn(CH3CO2)2 in a vacuum results in loss of acetic anhydride, leaving a residue of "basic zinc acetate," with the formula Zn4O(CH3CO2)6. This cluster compound has the tetrahedral structure shown below. This species closely resembles the corresponding beryllium compound, although it is slightly expanded with Zn-O distances ~1.97 vs ~1.63 for Be4O(OAc)6. calcium gluconate

Applications citric acid monohydrate

Dietary and medicinal applications

Zinc acetate is used as a dietary supplement and in lozenges used to treat the common cold. Zinc acetate alone is thought to be a more effective treatment than zinc gluconate.

Zinc acetate can also be used to treat zinc deficiencies. As an oral daily supplement it is used to inhibit the body's absorption of copper as part of the treatment for Wilson's disease. Zinc Acetate is the best maitenance drug for Wilson's Disease. It is manufactured by Gates Pharmaceuticals, a division of TEVA Pharmaceutical Industries. However, though it is important for patients with the disease to have the Zinc Acetate, and lives could be at stake without it, patients have repeatedly experienced difficulties in obtaining the medicine from the company. Patients with the disease are currently unable to obtain the medicine for unknown reasons and are unsure of when it will be available. Zinc acetate is also sold as an astringent in the form of an ointment, a topical lotion; or combined with an antibiotic such as erythromycin for the topical treatment of acne. Furthermore Zinc acetate is commonly sold as a topical anti-itch ointment.

In chewing gum, zinc acetate is a breath freshener and plaque inhibitor.

Industrial applications

Industrial applications include wood preserving, manufacturing other zinc salts, polymers, manufacture of ethylene acetate, as a dye mordant, and analytical reagent.

Zinc acetate is a precursor via a sol-gel route to the transparent semiconductor zinc oxide.

References

^ Capilla, A. V.; Aranda, R. A. nhydrous Zinc(II) Acetate (CH3-COO)2Zn Crystal Structure Communications 1979 ,volume 8, 795-797.

^ Van Niekerk, J. N.; Schoening, F. R. L.; Talbot, J. H. he Crystal Structure of Zinc Acetate Dihydrate, Zn(CH3COO)2.H2O Acta Crystallographica 1953, volume 6, pages 720-723.

^ Koyama, H.; Saito, Y. he Crystal Structure of Zinc Oxyacetate, Zn4O(CH3COO)6 Bulletin of the Chemical Society of Japan, 1954, volume 27, pages 112-114.

^ Eby GA (2004). "Zinc lozenges: cold cure or candy? Solution chemistry determinations". Biosci. Rep. 24 (1): 2339. doi:10.1023/B:BIRE.0000037754.71063.41. PMID 15499830. http://george-eby-research.com/html/common-cold.pdf. 

^ US patent 7087255

^ US patent 6592849

^ Giertsen E, Svatun B, Saxton A (February 1987). "Plaque inhibition by hexetidine and zinc". Scand J Dent Res 95 (1): 4954. PMID 3470899. 

Categories: Zinc compounds | Acetates