BACK TO FOOD COLORS

COMMON NAME                                                 :          INDIGO CARMINE

SYNONYMS                                                          :         (A)   F D & C BLUE 2

                                                                                            (B)   C.I. FOOD BLUE 1

                                                                                            (C)   INDIGOTIN

                                                                                            (D)   SAXONY BLUE

 C. I. NUMBER                                                      :           73015

CHEMICAL NAME                                              :           DISODIUM SALT OF  INDIGOTIN 5:5

                                                                                             DISULPHONIC ACID

EMPIRICAL FORMULA                                    :            C16  H8  N2 O8  S2 NA2

MOLECULAR WEIGHT                                     :            466.4

SOLUBILITY (WATER)                                     :             15GMS PER LITRE

FASTNESS PROPERTIES                                

LIGHT                                                                    :           FAIR

HEAT                                                                      :           FAIR (UP TO 1050 c)

                                                                                 :           POOR (UP TO 2050 c)

FRUIT ACIDS                                                       :           FAIR

BENZOIC ACID                                                   :           POOR

SULPHUR DIOXIDE                                           :           POOR

ALKALIES                                                            :           POOR