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

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

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

S Ishimitsu, I Mishima, S Tsuji, T Shibata

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.

MATERIALS

Product Number

Brand

Product Description

14010

Sigma-Aldrich

Titanium(III) chloride solution, 10-15% TiCl₃ basis

68724

Supelco

Fast Green FCF, analytical standard

F7258

Sigma-Aldrich

Fast Green FCF, certified by the BSC

F7252

Sigma-Aldrich

Fast Green FCF, Dye content ≥85 %