蓋軻　董彥杰　葛玉巧

摘　要：提出了一種新的測(cè)定粉煤灰中二氧化硅的方法，該方法簡(jiǎn)單易行、快速、準(zhǔn)確．
關(guān)鍵詞：二氧化硅； 重量法； 化學(xué)肥料
分類號(hào)：O613.72　　文獻(xiàn)標(biāo)識(shí)碼：A
文章編號(hào)：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