:Uranyl zinc acetate

{{chembox

| verifiedrevid = 403120229

| Name = Uranyl zinc acetate

| ImageFile = Zinc uranyl acetate 1g.JPG

| IUPACName = zinc;dioxouranium(2+);tetraacetate

| OtherNames = zinc uranyl acetate

| Section1 = {{Chembox Identifiers

| CASNo = 33959-50-1

| CASNo_Ref = {{Cascite|changed|CAS}}

| ChemSpiderID = 59696127

| PubChem = 22673297

| SMILES = O=C(C)[O-].[O+]#[U]#[O+].O=C(C)[O-].O=C(C)[O-].[Zn+2].O=C(C)[O-]

| StdInChI=1S/4C2H4O2.2O.U.Zn/c4*1-2(3)4;;;;/h4*1H3,(H,3,4);;;;/q;;;;;;;+4/p-4

| StdInChIKey = GWVOTLSLVURWPV-UHFFFAOYSA-J

}}

| Section2 = {{Chembox Properties

| Formula = ZnUO₂(CH₃COO)₄

| MolarMass = 571.59 g/mol

| Density =

| MeltingPt =

| BoilingPt = }}

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Uranyl zinc acetate (ZnUO₂(CH₃COO)₄) is a compound of uranium.

Uranyl zinc acetate is used as a laboratory reagent in the determination of sodium concentrations of solutions using a method of quantitatively precipitating sodium with uranyl zinc acetate and gravimetrically determining the sodium as uranyl zinc sodium acetate, (UO₂)₃ZnNa(CH₃CO₂)₉·6H₂O. The presence of caesium and rubidium does not interfere with this reaction, but the presence of potassium and lithium must be removed prior to analysis.{{Cite journal |last=Barber |first=H. H. |last2=Kolthoff |first2=I. M. |year=1928 |title=A specific Reagent for the Rapid Gravimetric Determination of Sodium |journal=J. Am. Chem. Soc. |volume=50 |issue=6 |pages=1625 |doi=10.1021/ja01393a014}}{{Cite journal |last=Barber |first=H. H. |last2=Kolthoff |first2=I. M. |year=1929 |title=Gravimetric Determination of Sodium by the Uranyl Zinc Acetate Method. II. Application in the Presence of Rubidium, Cesium, Potassium, Lithium, Phosphate or Arsenate |journal=J. Am. Chem. Soc. |volume=51 |issue=11 |pages=3233 |doi=10.1021/ja01386a008}}

This method was important to determine Na in urine for diagnostic purposes. Zinc uranyl acetate is sometimes called "sodium reagent" since pale yellow NaZn(UO₂)₃(C₂H₃O₂)₉ is one of the very few insoluble sodium compounds.{{cn|date=January 2025}}