高浓度氨水中低含量尿素测定方法探讨  

DETERMINATION OF LOW UREA CONTENT IN HIGH CONCENTRATION AMMONIA WATER

作　　者：王瑾 Wang Jin(Sichuan Lutianhua Co.,Ltd.,Luzhou 646300)

机构地区：[1]四川泸天化股份有限公司,四川泸州646300

出　　处：《大氮肥》2024年第3期197-201,共5页Large Scale Nitrogenous Fertilizer Industry

摘　　要：工业氨水要求氨含量在20%~22%,尿素含量需小于2%,分析工业氨水中尿素含量的方法属于常量分析。当前常量尿素分析方法有对二甲氨基苯甲醛比色法以及甲醛比色法两种,通过对比两种方法,选出最为恰当的分析方法。Industrial ammonia water requires an ammonia content of 20%to 22%,and a urea content of less than 2%.The method for analyzing the urea content in industrial ammonia water belongs to constant analysis.There are currently two methods for analyzing constant urea:the p-dimethylaminobenzaldehyde method and the formaldehyde method.By comparing the two methods,the most appropriate analysis method was selected.

关 键 词：氨含量 尿素含量 对二甲氨基苯甲醛比色法 甲醛法 

分 类 号：TQ440.4[化学工程—化学肥料工业]