乙二胺四乙酸铁钠的制备  

Preparation of NaFeEDTA

作　　者：窦建芝[1] 

机构地区：[1]潍坊工程职业学院,山东青州262500

出　　处：《辽宁化工》2014年第3期248-249,共2页Liaoning Chemical Industry

摘　　要：研究了用FeC13·6H20和Na2EDTA、EDTA、NaOH、NaHCO3为原料,制备乙二胺四乙酸铁钠的方法,并对不同制法做了分析对比。将乙二胺四乙酸在80℃以上加热溶解,分次加入固体碳酸氢钠和三氯化铁,加完后80℃保温反应20 min,调整溶液pH值小于5,冷却、抽滤、洗涤、干燥即可。此法容易操作,产品质量好。The preparation methods of NaFeEDTA by using FeCl3·6H2O, Na2EDTA, EDTA, NaOH, and NaHCO3 as raw material was studied. These preparation methods were analyzed and compared. Firstly EDTA was dissolved by heating above 80 ℃,then NaHCO3 and FeCl3 were added into The EDTA at different times, they reacted for 20 min at 80 ℃, then pH value of the solution was adjusted less than 5;after cooling, filtering, washing and drying, NaFeEDTA was gained.

关 键 词：乙二胺四乙酸 乙二胺四乙酸铁钠 铁营养强化剂 

分 类 号：TQ246[化学工程—有机化工]