Zinc acetate dehydrate

Chemical Designations - Synonyms Acetic acid, zinc salt Dicarbomethoxyzine Zinc acetate dehydrate Zinc diacetate Chemical Formula Zn(CWtf) or Zn(CWtf) tfO. 

European Medicines Evaluation Agency. Summary scientific opinion for the approval of Wilzin (zinc acetate dehydrate). http //www.emea.eu.int/humandocs/PDEs/EPARA)Pilzin/ 099104en6.pdf (accessed 12 April 2005). 

Zinc Acetate Acetic Acid Zinc Salt Dicarbo- methoXyzine Zinc Acetate Dehydrate Zinc Diacetate... 

Zinc uranyl acetate (reagent for sodium). Dissolve 10 g of U02(C2Hj02)2-2H20 in 6 g of 30% acetic acid, heat, if necessary, and dilute to 50 mL. Dissolve 30 g of zinc acetate dehydrate in 3 g of 30% acetic acid and dilute to 50 mL. Mix the two solutions, add 50 mg of sodium chloride, allow to stand overnight and filter. Use distilled water in all dilutions. 

Recently, hierarchical nanostructured ZnO has been fabricated through electrospinning technique to enhance the photocatalytic performance. For example, Kanjwal and co-workers prepared ZnO nanobranches by electrospinning of the colloidal solution containing zinc nanoparticles, zinc acetate dehydrate, and PVA, followed by the calcination process and the hydrothermal treatment [29]. The photocatalytic activity of the hierarchical structure of ZnO is much higher than that of traditional electrospun ZnO nanofibers for the degradation of MB under UV light irradiation. 

Interestingly, the electrospinning technique not only provided a simple method to fabricate ZnO nanofibers but also exhibited an ability to produce ZnO nanospheres. Lu, Xie, and co-workers prepared hollow ZnO nanospheres by annealing the electrospun PVP/ZnO nanoflbers from PVP and zinc acetate dehydrate solution in water and ethanol solvent [32]. The results showed that the hollow ZnO nanospheres exhibited a high photocatalytic activity to decompose RB dye under UV light irradiation, which should be attributed to the efficient capture of large number of UV light photons in the hollow structure. 

In 2012, Chen et al. reported a solution-processed nanocrystalline ZnO ETL in an inverted OSC which exhibited a PCE of 3.7% with a device structure of ITO/nanocrystalline ZnO/PSHTrPCBM/MoOj/Ag. The crystalline ZnO NPs were synthesized using zinc acetate dehydrate (ZnAc), ethanol, and potassium hydroxide (KOH). The ZnO NP solution was spincoated over the pre-cleaned ITO substrate and annealed at 120 °C for 10 minutes. The crystalline ZnO NPs provided ideal energy level alignment to PCBM, and high eonductivity. 

Intramolecular cycloaddition of jV-(cycloalkenyl)nitrones has also been extensively investigated. Thus, stepwise oxidation of the amine (35) and cyclization of the ensuing nitrone provided isoxazolidine (36) in 64% overall yield as the only observed regioisomer (Scheme 8).16 Isoxazolidine (36) was then desul-fonated with buffered sodium amalgam and further reduced with zinc-acetic acid to provide the corresponding y-amino alcohol subsequent dehydration provided (-)-hobartine. 

Different metallic acetates [221] have also been used in acetonitrile, which acts not only as a solvent but also as a dehydrating agent to eliminate the effect of any water produced during the reaction. In this way, the thermodynamic equilibrium could be shifted and the yield of CCs improved. By using 1,2-propene glycol as the reactant (100 mmol) and anhydrous zinc acetate (2.5 mmol) as catalyst in acetonitrile (10ml) with a C02 reaction pressure of 10 MPa, at a reaction temperature of 343 K and a reaction time of 12h, the yield of 1,2-propene carbonate was shown to be 24.2% and the conversion of 1,2-propene glycol 38.9%. 

Side reactions are the formation of dehydration of the pendent 2-hy-droxyethyl ester to result in pendent vinyl ester groups. These can further react under the ejection of acetaldehyde. Suitable catalysts are germanium compounds, such as germanium oxide, zinc acetate, manganese acetate, or a combination of antimony trioxide and trimethyl phosphate. ... 

Preparation of ZnO for DSSC Applications Nanostructured ZnO electrodes can either be synthesised from ZnO nanoparticles that are prepared in a separate procedure, or produced in a single synthetic step. Crystalline ZnO nanoparticles can be prepared at room temperature in non-aqueous solutions.In a typical preparation, a solution of zinc acetate in alcohol is mixed with an equimolar amount of hydroxide. The dehydrating properties of the solvent prevent the formation of zinc hydroxide and promote formation of crystalline ZnO. Transparent ZnO colloidal solutions are easily prepared. The particles tend to be approximately spherical and their size depends strongly on the preparation... 

Ethyl 1-bromocyclohexanecarboxylate, when treated with magnesium in anhydrous ether-benzene with subsequent addition of cyclohexanone, yields ethyl l-(l-hydroxycyclohexyl)cyclo-hexanecarboxylate. Dehydration and saponification give rise to l-(l-cyclohexenyl)cyclohexanecarboxylic acid, which upon decarboxylation at 195° yields cyclohexylidenecyclohexane in 8% overall yield, m.p. 540.4 This olefin has also been prepared by the debromination of 1,1 -dibromobicyclohexyl with zinc in acetic acid. ... 

Phenyl cinnamate and other phenolic esters have been prepared by heating the acid and phenol in the presence of phosphorus oxychloride,1 and by heating the acid anhydride and phenol together in the presence of a dehydrating agent such as fused zinc chloride or anhydrous sodium acetate.2 Phenyl cinnamate has also been prepared by the careful distillation of phenyl fumarate.3... 

The dehydration of the nitrate salts of some primary and secondary amines can yield the corresponding nitramine. Dimethylnitramine has been prepared in 65 % yield from the dehydration of dimethylamine nitrate in acetic anhydride to which 4 mole % of anhydrous zinc chloride has been added." The same reaction in the absence of chloride ion only generates a 5 % yield of dimethylnitramine." Some arylnitramines derived from weakly basic amines have been prepared via the addition of the amine nitrate salts to acetic anhydride. " ... 

Previously published methods for the synthesis of dimethylzinc, a useful alkylating agent, include the reaction of dimethylmercury with metallic zinc,1 the reaction of a zinc-copper couple with methyl iodide,2 and the Grignard method.3 The reaction of trimethylaluminum with zinc(II) halides or alkoxides can be used,4 but it is more convenient to use zinc(ll) acetate, which is very readily obtained by dehydrating the commercial dihydrate with boiling acetic anhydride or by the reaction5 ... 

As follows from the preceding examples, the dehydrative 4/f-pyran ring closure is facilitated when a condensed ring system is formed. Otherwise the formation of 4/f-pyrans may be difficult. Only a small amount of 3,5-diformyl-4//-pyran (38a) was found after the ozonolysis of norbornadiene, followed by decomposition of the primary ozonides with zinc and acetic acid.85... 

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