EFFECT OF TEMPERATURE AND CONCENTRATION ON THE VISCOSITY OF AQUEOUS SOLUTIONS OF 3-AMINOPROPANOIC ACID, 4-AMINOBUTANOIC ACID, 5-AMINOPENTANOIC ACID, 6-AMINOHEXANOIC ACID

In this work we present the effect of temperature

on the viscosities of aqueous solutions

of 3-aminopropanoic acid, 4-aminobutanoic

acid, 5-aminopentanoic acid

and 6-aminohexanoic acid as a function

of concentration. The experimental measurements

were done from 293.15 K to

308.15 K. At each temperature the experimental

data were fi tted to the Tsangaris-

Martin equation and the B viscosity coeffi

cient was determined. The dependence

of the B coeffi cients on the number of

carbon atoms of the amino acids is linear,

so the contribution of polar and apolar

groups was established. The results are

interpreted in terms of amino acid hydration.