Determination of SiO2 Content in Boron-Containing Silica Refractories by Hydrofluoric Acid Gravimetry

摘要：

The co-volatilization of boron and silicon has been studied for determination of SiO2 content in boron-containing silica refractories. The covolatilization of boron may cause positive interference for determining of SiO2 content. The interference can be eliminated by the volatilization of boron with 5mL and 2mL of ethanol by separately volatizing,before volatilization of SiO2 with hydrofluoric acid. The method for determination of SiO2 content in boroncontaining silica refractories has been established. The scope and precision of this method are equaled to that of the conventional method by hydrofluoric acid gravimetry.

关键词： Boron-containing silica refractories Hydrofluoric acid gravimetry

作者: Jianping Xu

作者单位: The State Key Laboratory Breeding Base of Refractories and Ceramics, Wuhan University of Science and Technology,Wuhan 430081,China Refractories products quality Inspection station of Hubei Province,Wuhan 430081,China

会议类型: 国际会议

会议名称: Frist Annual Meeting on Testing and Evaluation of Inorganic Materials(第一届全国无机材料测试与评价学术年会)

会议地点: 南昌

会议语种:英文

页码: 478-480

在线出版日期: 2010-04-28（万方平台首次上网日期，不代表论文的发表时间）