ベリリウムの分析化学的研究-14-
スポンサーリンク
概要
- 論文の詳細を見る
Beryllium salt is treated with hydrazine carbonate solution for formation of basic beryllium carbonate, heated to precipitate as Be(OH)<SUB>2</SUB>, filtered, washed with warm water, dried, ignited and weighed as BeO; there was almost no error of estimation, Using of ethylamine solution gives Be(OH)<SUB>2</SUB> at pH. 5.56.0, while using of ethylamine carbonate gives basic beryllium carbonate at pH 6.3, which turns to Be(OH)<SUB>2</SUB> on heating. Accordingly, it can be estimated as BeO by usual method. Methylamine or its carbonate solution gives a similar result and the estimation can be carried out simply. For precipitation of Be as BeNH<SUB>4</SUB>PO<SUB>4</SUB>·xH<SUB>2</SUB>O, the solution at pH. 7.27.6. BeO is found from its pyrophosphate by using the factor 0.2565. Crystalline berylliumammonium phosphate is found to be Be NH<SUB>4</SUB>PO<SUB>4</SUB>·4<SUP>1</SUP>/<SUB>2</SUB> H<SUB>2</SUB>O. The presence of tartaric acid or potassium salt in the solution has large influence on the estimation of beryllium.
- 社団法人 日本分析化学会の論文
著者
関連論文
- ベリリウムの分析化学的研究(第17報)
- ベリリウムの分析化学的研究-15-
- イソニコチン酸ヒドラジドによる二三の金属の定量
- ベリリウムの分析化学的研究-18-
- ベリリウムの分析化学的研究-16-
- Chemical Analysis of Beryllium. X:Determination of Beryllium by Hydrogen Sulfide with the Ether Method
- ベリリウムの分析化学的研究-14-
- ベリリウムの分析化学的研究-12・13-