Studies on Fluorine and Other Related Components of Japanese Foods (Part 6)

On fluoride in commonsalt

Abstract

Fluorine was determined for commonsalt in a few stages of the process of manufacturing salt by Eriochrome Cyanin R method.
The content of fluorine in salt varied from 36.73ppm (raw salt) to 8.74ppm (refined salt). The content of fluorine in the slurry of salt was decreased through washing with cleaning solution.