Sunset Yellow FCF/Food Yellow 3/C.I. 15985/FD&C Yellow No. 6

English Name: sunset yellow FCF; Food Yellow 3； C.I. 15985； FD&C Yellow No. 6； Disodium 6-hydroxy-5-[(4-sulphonatophenyl)azo]naphthalene-2-sulphonate

Other names: sunset yellow FCF; 1-p-sulfonic acid phenylazo-2-hydroxynaphthalene-6-sulfonic acid disodium salt; Edible yellow No. 6; Food yellow 3; Edible orange

CAS No.: 2783-94-0

C16H10N2Na2O7S2=452.37

Grade: ar

Content: ≥ 87.0%

Drying loss, total chloride and sulfate: ≤ 13.0%

Insoluble matter in water: ≤ 0.2%

Arsenic: ≤ 3ppm

Lead: ≤ 10ppm

Mercury: ≤ 1ppm

Cadmium: ≤ 1ppm

Physicochemical Properties: orange red uniform powder or particles, odorless. Soluble in water (6.9%, 0 ℃), glycerol, propylene glycol, slightly soluble in ethanol, insoluble in grease. The aqueous solution is yellow orange. It is stable in citric acid and tartaric acid and fades during reduction. 0.1% aqueous solution is orange yellow. Light resistance, heat resistance, acid resistance is very strong, alkali resistance is still good, but in case of alkali, it is reddish brown.

Purpose: biochemical research. Coloring of food, medicine and cosmetics is also the raw material for manufacturing aluminum salt lakes

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