Annotation: Drying conditions for potassium dichromate.
The optimum conditions for drying primary-standard or SRM grade potassium dichromate have been further examined, and it has been established that if organic impurities are present in the material the drying temperature should not exceed 200. At higher temperatures the organic matter is decomposed oxidatively by the dichromate, with a resultant error when the dichromate is used for standardization purposes.
Yoshimori
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T
Faculty of Engineering, Science University of Tokyo, Kagurazaka, Shinjuku-ku, Tokyo, 162, Japan.
Kamijoh
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K