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

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.