Ascorbic Acid Reference Standard (Control 831) of the National Institute of Hygienic Sciences

Tokunaga, H.; Kimura, T.; Yamaha, T.

Eisei Shikenjo Hokoku. Bulletin of National Institute of Hygienic Sciences 1985(103): 112-113

1985


ISSN/ISBN: 0077-4715
PMID: 3830291
Document Number: 257782
Ascorbic acid was tested for the preparation of a "Ascorbic Acid Reference Standard". Analytical data obtained were as follows; loss on drying: 0.00%, optical rotation: [.alpha.]D20 = +21.2.degree., melting point: 189.6 .apprx. 190.8.degree. C (decomposition), infrared spectrum: same as the Ascorbic Acid Reference Standard (control 811), and assay: 100.7% by iodometry, 100.2% by 2,6-dichlorophenol indophenol method. This material was authorized as the Japanese Pharmacopoeia Standard.

Document emailed within 1 workday
Secure & encrypted payments