Uranyl zinc acetate

Uranyl zinc acetate
Names
	IUPAC name zinc;dioxouranium(2+);tetraacetate
	Other names zinc uranyl acetate
Identifiers
CAS Number	33959-50-1 ;
3D model (JSmol)	Interactive image;
ChemSpider	59696127;
PubChem CID	22673297;
	InChI InChI=1S/4C2H4O2.2O.U.Zn/c41-2(3)4;;;;/h41H3,(H,3,4);;;;/q;;;;;;;+4/p-4 Key: GWVOTLSLVURWPV-UHFFFAOYSA-J;
	SMILES O=C(C)[O-].[O+]#[U]#[O+].O=C(C)[O-].O=C(C)[O-].[Zn+2].O=C(C)[O-];
Properties
Chemical formula	ZnUO2(CH3COO)4
Molar mass	571.59 g/mol
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

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.[1][2]

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.

Laboratory use

Uranyl zinc acetate has been used as a catalyst for the demethoxylation of toluene-2,4-dicarbamate into toluene-2,4-diisocyanate (TDI).[3]

References

Barber, H. H.; Kolthoff, I. M. (1928). "A specific Reagent for the Rapid Gravimetric Determination of Sodium". J. Am. Chem. Soc. 50 (6): 1625. doi:10.1021/ja01393a014.
Barber, H. H.; Kolthoff, I. M. (1929). "Gravimetric Determination of Sodium by the Uranyl Zinc Acetate Method. II. Application in the Presence of Rubidium, Cesium, Potassium, Lithium, Phosphate or Arsenate". J. Am. Chem. Soc. 51 (11): 3233. doi:10.1021/ja01386a008.
Wang, Y.; Zhao, X.; Li, F.; Wang, S.; Zhang, J. (2001). "Catalytic synthesis of toluene-2,4-diisocyanate from dimethyl carbonate". Journal of Chemical Technology & Biotechnology. 76 (8): 857. doi:10.1002/jctb.455.

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[1] Barber, H. H.; Kolthoff, I. M. (1928). "A specific Reagent for the Rapid Gravimetric Determination of Sodium". J. Am. Chem. Soc. 50 (6): 1625. doi:10.1021/ja01393a014.

[2] Barber, H. H.; Kolthoff, I. M. (1929). "Gravimetric Determination of Sodium by the Uranyl Zinc Acetate Method. II. Application in the Presence of Rubidium, Cesium, Potassium, Lithium, Phosphate or Arsenate". J. Am. Chem. Soc. 51 (11): 3233. doi:10.1021/ja01386a008.

[3] Wang, Y.; Zhao, X.; Li, F.; Wang, S.; Zhang, J. (2001). "Catalytic synthesis of toluene-2,4-diisocyanate from dimethyl carbonate". Journal of Chemical Technology & Biotechnology. 76 (8): 857. doi:10.1002/jctb.455.