Current time in Korea 18:03 Mar 29 (Fri) Year 2024 KCS KCS Publications
KCS Publications
My Journal  Log In  Register
HOME > Search > Browsing(JKCS) > Archives

Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 8, Number 3
JKCSEZ 8(3)
June 20, 1964 

 
Title
Rapid Volumetric Assay of Fluorspar Concentrate

고품위 형석의 신속 용량법
Author
Q. Won Choi, Joon-Suk Oh, Kwang-Woo Lee

최규원, 오준석, 이광우
Keywords
Abstract
A volumetric method of the determination of calcium carbonate and calcium fluoride in fluorspar concentrate is described. The carbonate is converted into solution by treatment of the sample in HNO3-acetone (l% by volume) mixture, and the fluoride by treating the residue with H3BO3-HCl mixture. The calcium in the solution is determined volumetrically using EDTA standard solution. The selective dissolution of calcium carbonate by HNO3-acetone mixture is superior to Bidtel's acetic method and little correction for the dissolution of calcium fluoride is needed. Triethanolamine is found to be superior to KCN in masking heavy metal ions.
Page
109 - 112
Full Text
PDF