Eisei Shikenjo hokoku. Bulletin of National Institute of Hygienic Sciences 1996-01-01

[Studies on "Fast Green FCF Standard" for the dye standard on the National Institute of Health Sciences].

S Ishimitsu, I Mishima, S Tsuji, T Shibata

Index: Eisei Shikenjo Hokoku. (114) , 136-7, (1996)

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Abstract

The raw material for Fast Green FCF was tested for preparation of the "Fast Green FCF Standard (C.I. 42053)". Analytical data obtained were as follows: paper chromatography, only one spot is observed; arsenic content, 0.38 microgram/g; chloride content, 0.11%; sulfate content, 3.30%; heavy metals, lead, 8.0 micrograms/g, manganese, 28.1 micrograms/g, and chromium, 1.6 micrograms/g; infrared spectra, 1575 cm-1, 1169 cm-1, and 1033 cm-1; loss on drying, 2.39%; assay, 93.0% by the titanium trichloride titration. Based on the above results, the raw material was authorized as the Dye Standard of National Institute of Health Sciences.