煤灰中三氧化二铁含量对二氧化钛测定的影响探讨

Discussion on how the ferric oxide in coal ash affected the titanium dioxide determination

以煤灰中不同含量的三氧化二铁和二氧化钛为研究对象,选取2种煤灰标准物质在同等状态下进行实验,分析和探讨试验过程中铁含量对钛测定的影响,并提出了相应的解决措施,即加入2 mL抗坏血酸以消除高含量铁的影响以提高二氧化钛测定的准确度。

Took the different contents of ferric oxide and titanium dioxide in coal ash as research targets,chose two types of standard materials and do the experiments under the same status,how the iron content affected the titanium determination in experimental process was discussed and analyzed,and the corresponding measurement（adding 2 mL of vitamin C） was proposed,which could eliminate the effect of high iron content,so the accuracy of titanium dioxide determination could be improved.