| 高热硫酸溶解重量法测定矿石中的钡 |
| |
| 引用本文： | 范福南,邢富,范秀娥.高热硫酸溶解重量法测定矿石中的钡[J].岩矿测试,2002,21(3):219-222. |
| |
| 作者姓名： | 范福南 邢富 范秀娥 |
| |
| 作者单位： | 甘肃省地勘局第六地勘院,甘肃,金昌,737100 |
| |
| 摘 要： | 利用BaSO4在高热H2 SO4中能定量地形成液态Ba(HSO4) 2 ,而当含Ba(HSO4) 2 的浓H2 SO4溶液被稀释时 ,又能重新定量析出BaSO4这一性质 ,拟定出高热H2 SO4溶解重量法测定矿石中的钡。方法用于矿石、重晶石单矿物中BaO和BaSO4的测定 ,结果与碱熔BaSO4重量法、BaCrO4容量法、外检结果相一致 ,精密度试验结果 ,相对标准偏差RSD(n =1 0 ) <5 %。
|
| 关 键 词： | 矿石 高热硫酸 钡 重量法 氧化钡 硫酸钡 |
| 文章编号： | 0254-5357(2002)03-0219-04 |
| 修稿时间： | 2001年10月20 |
Gravimetric Determination of Barium in Ores with High Temperature Sulfuric Acid Sample Dissolution |
| |
| FAN Fu nan,XING Fu,FAN Xiu er.Gravimetric Determination of Barium in Ores with High Temperature Sulfuric Acid Sample Dissolution[J].Rock and Mineral Analysis,2002,21(3):219-222. |
| |
| Authors: | FAN Fu nan XING Fu FAN Xiu er |
| |
| Abstract: | Based on the principle of transformation of BaSO 4 to soluble Ba(HSO 4) 2 in concentrated sulfuric acid with high temperature and then changing back to BaSO 4 quantitatively when Ba(HSO 4) 2 solution was diluted and cooled to room temperature, a method for gravimetric determination of barium in ores was developed. The method has been applied to the determination of BaO and BaSO 4 in Barite concentrates and other ores. The analytical results from this method are in agreement with alkali fusion BaSO 4 gravimetry and BaCrO 4 volumetry with precision of < 5% RSD ( n =10). |
| |
| Keywords: | high temperature sulfuric acid barium gravimetric method |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《岩矿测试》浏览原始摘要信息 |
| 点击此处可从《岩矿测试》下载免费的PDF全文 |
|
