食品科学 ›› 2004, Vol. 25 ›› Issue (9): 82-87.

• 基础研究 • 上一篇    下一篇

铁营养强化剂乙二胺四乙酸铁钠合三水的热分解研究

 魏峰, 于波, 霍军生   

  1. 中国疾病预防控制中心营养与食品安全所
  • 出版日期:2004-09-15 发布日期:2011-10-24

Studies on the Thermal Decomposition of Food Fortifier: sodium iron (Ⅲ) Ethylenediaminetetraacetate Trihydrate

 WEI  Feng, YU  Bo, HUO  Jun-Sheng   

  1. Institute of Nutrition and Food Safety, Chinese Center for Disease Control and Prevention
  • Online:2004-09-15 Published:2011-10-24

摘要: 本研究采用热重-差示扫描量热(TG-DSC)分析对铁营养强化剂乙二胺四乙酸铁钠合三水(NaFeEDTA•3H2O)的加热脱结晶水及热分解过程进行了研究。发现NaFeEDTA•3H2O 在76~185℃分两个阶段失去全部结晶水,在210℃以上分解,分解过程分四个阶段进行。同时对各分解阶段的热力学曲线进行分析,得出了各阶段的动力学参数,和高温下的稳定时间。

关键词: NaFeEDTA&bull, 3H2O, 动力学参数, 热重-差示扫描量热

Abstract: Experimental researches on the process of losing crystal water and thermal decomposition of sodium iron (Ⅲ)ethylenediaminetetraacetate trihydrate(NaFeEDTA•3H2O) have been done by means of TG-DSC thermal graphs. The resultsobtained indicate there were two dehydration stages in 76~185℃ and four decomposition stages over 210℃. And the thermalstability in high temperature had been speculated in this paper with the kinetic parameters of every stage which were obtainedfrom the TG-DSC curves.

Key words: NaFeEDTA•3H2O, kinetic parameters, TG-DSC