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Solubility of the Parabens in Ethanol—Water mixtures

✍ Scribed by Anthony N. Paruta

Publisher
John Wiley and Sons
Year
1969
Tongue
English
Weight
281 KB
Volume
58
Category
Article
ISSN
0022-3549

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✦ Synopsis

The solubilities of n-alkyl parabens have been determined in binary mixtures of ethanol and water. The profiles showed a dielectric requirement value of about 29-32 for the subject compounds. The butyl derivative formed a two-phase system over a certain composition range of ethanol and water. These phases were analyzed and found to be approximately invarient with respect to the concentration of the three components indicating the formation of a solvate. The ratio of the solubility of these compounds relative to the methyl derivative is considered over the polarity range studied.

Keyphrases

Paraben solubility-ethanol-water mixtures 0 Dielectric requirements-parabens 0 Dielectric constants-ethanolwater mixtures c] Polarity-paraben solubility 1 All melting points are corrected and were taken with a Thomas-Hoover melting point apparatus. I R spectra were taken with Perkin-Elmer model 21 spectrophotometer. Elemental analyses were run by

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