| 珍珠岩矿中Ca、Mg的测定 |
| |
| 引用本文： | 于永生,方林霞,胡毓元.珍珠岩矿中Ca、Mg的测定[J].化学工程师,2009,23(12):22-24. |
| |
| 作者姓名： | 于永生 方林霞 胡毓元 |
| |
| 作者单位： | 信阳师范学院,化学化工学院,河南,信阳,464000 |
| |
| 基金项目： | 河南省科技厅重点攻关项目(082102340005) |
| |
| 摘 要： | 样品在650℃下用NaOH熔融，HCI浸出，用动物胶凝聚沉淀法分离SiO2，EDTA滴定法联合测定Ca、Mg的含量，方法用于珍珠岩矿中Ca、Mg的测定，相对标准偏差分别为0．58％-0．68％和1．37％～1．99％。
|
| 关 键 词： | 珍珠岩 钙 镁 |
Analysis of calcium and magnesium in perlite |
| |
| YU Yong-sheng,FANG Lin-xia,HU Yu-yuan.Analysis of calcium and magnesium in perlite[J].Chemical Engineer,2009,23(12):22-24. |
| |
| Authors: | YU Yong-sheng FANG Lin-xia HU Yu-yuan |
| |
| Affiliation: | College of Chemistry and Chemical Engineering;Xinyang Normal University;Xinyang 464000;China |
| |
| Abstract: | The sample was melted with sodium hydroxide at 650 ℃ and soaked out with hydrochloric acid. Then the silicon was separated by gravimetric method using animal glue for fast agglomerating silicon acid, the calcium and magnesium in the sample determined by titration with EDTA. The method had been applied to the determination of calcium and magnesium in perlite with the relative standard deviation of 0.58%-0.68% and 1.37%-1.99%, respectively. |
| |
| Keywords: | perlite calcium magnesium |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
