碱液滴定峰值法准确测定硝酸镧晶体结晶水数量  

Accurate Measurementing Crystallize Water Quantity of Lanthanum Nitrate Crystal with the Alkali-titration-peak Method

作　　者：王志辉[1] 刘杰凤[1] 

机构地区：[1]茂名学院化工系,广东茂名525000

出　　处：《广东化工》2005年第3期45-46,共2页Guangdong Chemical Industry

摘　　要：硝酸镧晶体(La(NO3)3·xH2O)所含的结晶水数往往不尽相同,化学实验中常用干燥失重等方法判定,但实验误差较大,作者采用碱液滴定法,准确测定了结晶水数,减少了实验误差。Lanthanum nitrate crystal(La(NO_3)_3·xH_2O) containing water number not exhausted same alike, in common chemistry experiment usually determine with drying-losing heavy etc., but three be bigger error, adopting the alkali-titration method in my experiment , accurately measured the crystallize water count, reduced the error.

关 键 词：准确测定 硝酸镧 水数 结晶 晶体 碱液 峰值法 实验误差 干燥失重 化学实验 滴定法 

分 类 号：TQ533[化学工程—煤化学工程] O614.331[理学—无机化学]