ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

New photometric procedure for the determination of the water in acetone

J. Gažo and J. Truchlý

Slovak Technical University, Bratislava

Abstract: A new photometric procedure was described for the detn. of H₂O in Me₂CO. It is based on the effect of water on the dissocn. of chloro-Cu(II) complexes, which is assocd. with an intense color. The dependence of the absorbance at 475 mμ on water concn. at the absorption band in the system CuCl₂-NH₄Cl-MeOH-Me₂CO-He₂O was detd. The amts. and ratio were: [Cu(II)] = 1.05.10^-4M, [Cl-]: [Cu(II)] = 9.5. By this method a rapid detn. of up to 2.0% of H₂O (by vol.) in acetone was possible, with an error of ±0.10%.

Full paper in Portable Document Format: 189a655.pdf (in Slovak)

Chemical Papers 18 (9) 655–660 (1964)