Uranyl zinc acetate
4415117
217398719
2008-06-05T21:23:33Z
JaGa
2092487
Reverted edits by [[Special:Contributions/144.122.250.237|144.122.250.237]] ([[User talk:144.122.250.237|talk]]) to last version by 82.128.187.16
{{Chembox new
| Name = Uranyl zinc acetate
| IUPACName = zinc bis(acetato-O)dioxouranate
| OtherNames = zinc uranyl acetate
| Section1 = {{Chembox Identifiers
| CASNo = 10138-94-0
}}
| Section2 = {{Chembox Properties
| Formula = ZnUO<sub>2</sub>(CH<sub>3</sub>COO)<sub>4</sub>
| MolarMass = 571.59 g/mol
| Density =
| MeltingPt =
| BoilingPt = }}
}}
{{Cleanup-jargon|date=January 2008}}
'''Uranyl zinc acetate''' (ZnUO<sub>2</sub>(CH<sub>3</sub>COO)<sub>4</sub>)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 [[Gravimetric analysis|gravimetrically]] determining the sodium as uranyl zinc sodium acetate, (UO<sub>2</sub>)<sub>2</sub>ZnNa(CH<sub>3</sub>COO)-6H<sub>2</sub>O. This method was important to determine Na in [[urine]] for [[diagnostic]] purposes. Zinc uranyl acetate is sometimes called "sodium reagent" since pale yellow NaZn(UO<sub>2</sub>)<sub>3</sub>(C<sub>2</sub>H<sub>3</sub>O<sub>2</sub>)<sub>9</sub> is one of the very few insoluble sodium compounds.
The process for catalytic synthesis of toluene-2,4-diisocyanate (TDI) from [[dimethyl carbonate]] (DMC) consists of two steps. Starting from the catalytic reaction between toluene-2,4-diamine (TDA) and DMC, dimethyl toluene-2,4-dicarbamate (TDC) is formed, and then decomposed to TDI. For the first step, the yield of TDC is 53.5% at a temperature of 250 °C, over Zn(OAc)2/alpha–Al2O3 catalyst. For the second step, the yield of TDI is 92.6% at temperatures of 250–270 °C and under pressure of 2.7 kPa, over '''uranyl zinc acetate''' [[catalyst]], when di-n-octyl sebacate(DOS) is used as heat-carrier, and a mixture of [[tetrahydrofuran]] (THF) and [[nitrobenzene]] is used as solvent.
==References==
{{Citationstyle|date=September 2007}}
{{reflist}}
* Catalytic synthesis of toluene-2,4-diisocyanate from dimethyl carbonate, W''ang Y.1; Zhao X.; Li F.; Wang S.1; Zhang J.'', Journal of Chemical Technology & Biotechnology, 2001, 78, 857-861.
[[Category:Uranyl compounds]]
[[Category:Zinc compounds]]
[[Category:Acetates]]
[[Category:Coordination compounds]]
{{Inorganic-compound-stub}}