物理化学学报1999，Vol.15Issue(7)：662-667,6.
α-氨基酸在丁酸钠水溶液中的体积性质(308.15K)
The Volumetric Properties of Some α-Amino Acids in Aqueous Sodium Butyrate Solutions at 308.15 K
摘要
Abstract
Density data have been reported for glycine,DL-α-alanine,DL-α-amino-n-butyric acid,DL-valine and DL-leucine in aqueous solutions of 0.5,1.0,1.5 and 2.0 mol.kg-1 sodium butyrate at 308.15 K.The apparent molar volumes V2,φand standard partial molar volumes for the amino acids in aqueous sodium butyrate solutions have been calculated.The linear correlation between and the number of carbon atoms in the alkyl chain of the amino acids has been observed and utilized to estimate the contributions of the charged end groups ,CH2 group and other alkyl chains of the amino acids to .The results show that values for increase,while those for CH2 decrease,with sodium butyrate concentration.The hydration number of the amino acids decreases with increasing electrolyte concentrations.These phenomena are discussed by means of the dehydration effect of electrolyte on the amino acids.关键词
密度/标准偏摩尔体积/α-氨基酸/丁酸钠水溶液Key words
Density/Standard partial molar volume/α-amino acid/Aqueous sodium butyrate solutions分类
化学化工引用本文复制引用
颜振宁,成庆堂,王键吉,刘大壮..α-氨基酸在丁酸钠水溶液中的体积性质(308.15K)[J].物理化学学报,1999,15(7):662-667,6.基金项目
国家教委优秀年轻教师基金和河南省杰出青年科学基金基金项目 （）
