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单体酸的理化性能及组成的GC/MS分析
引用本文:曹晓燕,满瑞林,刘小风,王金菊,胡豫.单体酸的理化性能及组成的GC/MS分析[J].应用化工,2007,36(8):833-835.
作者姓名:曹晓燕  满瑞林  刘小风  王金菊  胡豫
作者单位:1. 中南大学,化学化工学院,湖南,长沙,410083
2. 九江学院,化学化工学院,江西,九江,332005
3. 长沙环境保护职业技术学院,环境工程系,湖南,长沙,410004
摘    要:研究棉籽油酸生产二聚酸的副产物——单体酸的组成及性质,测定了单体酸的碘值、酸值、皂化值等理化指标。结果表明,样品是一种含有较长碳链、不易发生酸败的脂肪酸混合物。样品用甲醇进行甲酯化,用GC/MS进行分析和鉴定,共鉴定出棕榈酸(12.16%)、肉豆蔻酸(6.70%)、十八烯酸(25.61%)、硬脂酸(33.77%)等16种物质。

关 键 词:单体酸  脂肪酸  理化性能  GC/MS
文章编号:1671-3206(2007)08-0833-03
修稿时间:2007-04-17

Physicochemical properties and GC/MS analysis of monomer acid
CAO Xiao-yan,MAN Rui-lin,LIU Xiao-feng,WANG Jin-ju,HU Yu.Physicochemical properties and GC/MS analysis of monomer acid[J].Applied chemical industry,2007,36(8):833-835.
Authors:CAO Xiao-yan  MAN Rui-lin  LIU Xiao-feng  WANG Jin-ju  HU Yu
Affiliation:1. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; 2. College of Chemistry and Chemical Engineering, Jiujiang University, Jiujiang 332005, China ;3. Department of Environmental Engineering, Changsha Environmental Protection College, Changsha 410004, China
Abstract:Monomer acid was the byproduct of preparing dimer acid from oleic in industry.We researched the physicochemical properties of monomer acid,such as iodine value,acid value,saponification value,and so on.The conclusion showed that the sample was a mixed fatty acid which contained longer chain of carbon and had high quality.After the sample was etherified via methanol,the chemical components and their relative contents of fatty acid from monomer acid were analyzed by GC/MS.Sixteen components such as hexadecanoic(12.16%),tetradecanoic(6.70%),oleic(25.61%) and stearic(33.77%) were identified.
Keywords:GC/MS
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