Zinc molybdate: Difference between revisions

| ImageFile = EntryWithCollCode264761.png

| ImageSize =

| ImageAlt =

| IUPACName =

| Watchedfields = changed

| verifiedrevid = 385060199

| Name = Zinc molybdate

| last = Lide

| first = David R.

| year = 1998

| title = Handbook of Chemistry and Physics

| edition = 87

| location = Boca Raton, FL

| publisher = CRC Press

| isbn = 978-0-8493-0594-8

| pages = 4–95

| OtherNames =

|Section1={{Chembox Identifiers

| CASNo_Ref = {{cascite|correct|??}}

| CASNo = 13767-32-3

| EINECS = 237-377-8

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 302KZX2NIS

| PubChem = 16213780

|Section2={{Chembox Properties

| Formula = ZnMoO₄

| MolarMass = 225.33 g/mol

| Appearance = white [[tetragonal]] crystals

| Density = 4.32 g/cm³<ref name=XRD/>

| MeltingPtC = 900

| BoilingPt =

| Solubility = insoluble

|Section3={{Chembox Structure

| CrystalStruct = tetragonal

|Section7={{Chembox Hazards

| GHS_ref=<ref>{{cite web |title=C&L Inventory |url=https://echa.europa.eu/information-on-chemicals/cl-inventory-database/-/discli/details/49701 |website=echa.europa.eu}}</ref>

| GHSPictograms = {{GHS07}}

| GHSSignalWord = Warning

| HPhrases = {{H-phrases|315|319|335}}

| PPhrases = {{P-phrases|}}

| NFPA-H = 2

| NFPA-F = 0

| NFPA-R = 0

| NFPA-S =

}}

'''Zinc molybdate''' is an [[inorganic compound]] with the formula [[Zinc|Zn]][[Molybdate|MoO₄]]. It is used as a white [[pigment]], which is also a [[corrosion inhibitor]]. A related pigment is sodium zinc molybdate, Na₂Zn(MoO₄)₂.<ref name=Ull/> The material has also been investigated as an electrode material.<ref>{{cite journal|title=Nanostructured Mo-based electrode materials for electrochemical Energy Storage|last1=Hu|first1=Xianluo|last2=Zhang|first2=Wei|last3=Liu|first3=Xiaoxiao|last4=Mei|first4=Yueni|last5=Huang|first5=Yunhui|journal=Chemical Society Reviews|year=2015|volume=44|issue=8|pages=2376–404|doi=10.1039/C4CS00350K|pmid=25688809|s2cid=205906132}}</ref>

In terms of its structure, the Mo(VI) centers are tetrahedral and the Zn(II) centers are octahedral.<ref name=XRD>{{cite journal|title=Rietveld Refinements, Impedance Spectroscopy and Phase Transition of the Polycrystalline ZnMoO₄ Ceramics|author=Ait Ahsaine, H.; Zbair, M.; Ezahri, M.; Benlhachemi, A.; Arab, M.; Bakiz, B.; Guinneton, F.; Gavarri, J. R.|journal=Ceramics International|year=2015|volume=41|issue=10|pages=15193–15201|doi=10.1016/j.ceramint.2015.08.094|s2cid=93070036 |url=https://hal.archives-ouvertes.fr/hal-01872783/file/aitahsaine2015-1.pdf }}</ref>

==Safety==

The LD50 (oral, rats) is 11,500 mg/kg.<ref name=Ull>{{Ullmann|title=Pigments, Inorganic 5. Anticorrosive Pigments

|author=G. Etzrodt|year=2012|doi=10.1002/14356007.n20_n04}}</ref> While highly [[solubility|soluble]] [[molybdate]]s like e.g. [[sodium molybdate]] are toxic in higher doses, zinc molybdate is essentially non-toxic because of its insolubility in water. Molybdates possess a lower toxicity than chromates or lead salts and are therefore seen as an alternative to these salts for corrosion inhibition.

{{Molybdates}}

[[Category:Molybdates|zinc]]

[[Category:Zinc compounds|molybdate]]