摘要
用盐酸加热分解硅灰石试样,将试样中的钙沉淀分离,得可溶性硅,用氟硅酸钾容量法测定计算标准硅灰石矿(GBW03123)和两个硅灰石试样中硅灰石的含量,结果与用标准方法测得的结果较吻合.对同一样品进行7次测定,标样与两个试样的相对标准偏差分别为3.6%,3.0%和3.1%.
Wollastonite samples were first decomposed by hot hydrochloric acid, then the calcium element was separated and precipitated. By reacting fluosilicate potassium precipitation was quantitatively obtained, next silicon in the residue solution and nitric acid and potassium fluoride. Thus the content of wollastonite in the ores was determined by volumetric method. The result is consistent with the regular method using standard wollastonite sample. The standard wollastonite of relativity standard is 3.6 % , and the wollostonite sample of relativity standard deviation is 3.0 % and 3.1% , respectively.
出处
《延边大学学报（自然科学版）》
CAS
2005年第3期201-203,共3页
Journal of Yanbian University（Natural Science Edition）
关键词
硅灰石
含量
测定方法
wollastonite
content
determination method
