Gardenia yellow CAS NO.94238-00-3

1、 The chemical name Gardenia Yellow 2、 Physical and chemical characteristics Appearance and Properties: Orange yellow or dark yellow powder, whose …

1、 The chemical name Gardenia Yellow 2、 Physical chemicalacteristics Appearance Properties:ange yellow dark yellow powder, whose colvaries from primrose to scarlet which is fairly soluble in water, ethyl alcohol propylene glycol, but insoluble in fat. The water solution of the pigment is of bright vivid yellow hue, appears in weak acidity alkalinity. PH: The environmental PH value has little influence on its hue. At PH 2.0-6.0, it becomes a little unstable; at PH 7.0 above, it is stable you can maintain stable yellow; at PH value of 4.0-6.0 8.0-11.0, it gets more stable than β-carotene. Stability: The pigment is strongly resistant of reduction, microbial resistance, light fastness, heat resistance, has good resistance to metal ions because its color, within the PH value of 4-11, is essentially the same; Reactivity: Metal ions have no influence on it but in the case of iron, it becomes black. An Overview of the Risk：Extracted in purified water rather than in anyganic solvent; therefore, it’s free from residual of&