The bromination of acetone. application to multicomponent kinetic determinations.
A very simple kinetic method is proposed for the resolution of mixtures of acetone and a second component. It is based on the reaction, at constant temperature, between bromine and acetone. This reaction can be regarded, under certain conditions, as pseudo-zero-order on the bromine concentration. To show the possibilities of the method, mixtures of acetone (between 2 and 20 x 10(-4) mol L(-1)) and either hydroquinone (between 0.4 and 2.2 x 10(-4) mol L(-1)) or resorcinol (between 0.1 and 10.7 x 10(-4) mol L(-1)) have been used with the concentration ratios [acetone]:[hydroquinone] ranging between 0.5 and 50 and [acetone]:[resorcinol] ranging between 2.8 and 200. No systematic errors were found to exist (90% confidence level) and random errors were mainly under 5%. The method can be extended to mixtures of acetone and a second component whose reaction with bromine is fast (phenols, aromatic amines, etc.).
López-Cueto
Guillermo
G
Departamento de Quimica Analítica, Facultad de Ciencias, Universidad de Alicante, Spain.
Ostra
Miren
M
Ubide
Carlos
C