盖轲　董彦杰　葛玉巧

摘　要：提出了一种新的测定粉煤灰中二氧化硅的方法，该方法简单易行、快速、准确．
关键词：二氧化硅； 重量法； 化学肥料
分类号：O613.72　　文献标识码：A
文章编号：1007-9912(2000)02-0058-03　　

Determination of Silicon Dioxide in Powder Coal Ash

GAI Ke　DONG Yan-jie
（Department of Chemistry, Qinyang Teacher’s College, Xifeng Gansu 745000；）
GE Yu-qiao
（Yima Middle School of Qingyang county, Qingyang Gansu 745100, China）

Abstract：A new method to determine silicon dioxide in powder coal ash has been stated. The method is feasible, fast and accurate.
Key words：silicon dioxide; vaporization; chemical fertilizer