Indigo Carmine Food Colors

About Indigo Carmine Food Colors

PRODUCT: INDIGO CARMINE

IUPAC name : Disodium3,3'-dioxo-2,2'-bi-indolylidene-5,5'-disulphonate

Properties :

Chemical formula : C16H8N2Na2O8S2

Molar mass :466.35 g/mol

Colour Index No. :73015

Food Colour No. :Food Blue 1

F.D. & C. No. :BLUE 2

CAS NO. :860-22-0

E.E.C. No. :E-132

Specification :

Total Dye Content Corrected for Sample (Min.) : 85%

Volatile Matter (chloride & sulphate) (Max): 15%

Solubility In Water (20 c) : 120 gram / litre

Combined Ether Extract. (Max) : 0.20%

Water Insoluble (Max) : 0.20%

Class : Triarylmethane

Light Stability : 3

Heat Stability (100 c) : 5

Alkali Stability : 3

Subsidiary Dyes (Max) : 1.00%

Dyes Intermediate (Max) : 0.50%

Lead : < 2 ppm

Arsenic : < 1 ppm

Mercury : < 1 ppm

Heavy Metals : < 20 ppm