河北化工
河北化工
하북화공
HEBEI CHEMICAL ENGINEERING AND INDUSTRY
2012年
1期
67-68,72
,共3页
甘氨酸铝锆%连续滴定法%铝%锆%含量
甘氨痠鋁鋯%連續滴定法%鋁%鋯%含量
감안산려고%련속적정법%려%고%함량
aluminum zirconium glycine%continuous titration%aluminum%zirconium%content
采用连续滴定法测得甘氨酸铝锆中铝和锆的含量。采用EDTA络合滴定的实验方案,先将甘氨酸铝锆固体粉末配制成溶液,并将溶液的pH值调节在0.5～1之间,以二甲酚橙为指示剂,用EDTA滴定测得锆的含量;再将此溶液的pH值调节在5～6之间,然后加入过量的EDTA溶液,让铝离子与EDTA充分络合,最后过量的EDTA用硫酸锌标准溶液进行返滴定,从而测得铝离子的含量。实验证明,该法简便,结果准确。
採用連續滴定法測得甘氨痠鋁鋯中鋁和鋯的含量。採用EDTA絡閤滴定的實驗方案,先將甘氨痠鋁鋯固體粉末配製成溶液,併將溶液的pH值調節在0.5～1之間,以二甲酚橙為指示劑,用EDTA滴定測得鋯的含量;再將此溶液的pH值調節在5～6之間,然後加入過量的EDTA溶液,讓鋁離子與EDTA充分絡閤,最後過量的EDTA用硫痠鋅標準溶液進行返滴定,從而測得鋁離子的含量。實驗證明,該法簡便,結果準確。
채용련속적정법측득감안산려고중려화고적함량。채용EDTA락합적정적실험방안,선장감안산려고고체분말배제성용액,병장용액적pH치조절재0.5～1지간,이이갑분등위지시제,용EDTA적정측득고적함량;재장차용액적pH치조절재5～6지간,연후가입과량적EDTA용액,양려리자여EDTA충분락합,최후과량적EDTA용류산자표준용액진행반적정,종이측득려리자적함량。실험증명,해법간편,결과준학。
To determine the content of aluminum and zirconium in aluminum zirconium glycine by continuous titration.To use the EDTA complexometric titration experiment scheme.Firstly, to compound aluminum zirconium glycine solid pow- der into solution, and regulate pH value of the solution in 0.5 - 1, to measure the content of zirconium by EDTA two xyle- nol orange as indicator.Secondly, to adjust the solution pH value in 5 ~ 6,and then join the excess EDTA solution, let the aluminum ion with EDTA fully complex.Finally, to back titrat the excessive EDTA with zinc sulfate standard solution,and measure the content of aluminum ion. Experiments showed that the method is simple and accurate.
