A cherry red colour with good all round stability, suitable as strawberry red, in canned fruit, and in general confectionary
Description | Red fine powder |
Colour Index Number | Colour Index reference | Associated FD & C | Approved Additive Code |
C.I.16255 | FOOD RED 7 |
| E124 |
Class | Light Stability | Heat Stability 100oc | Heat Stability 200oc |
Monoazo | 4 | 5 | 5 |
Solubility in water 20oc g/l | Pure Dye Content – Av. | Pantone Reference | Suitability for blending |
140 grams | 82% | 186 | yes |
Solubility in Glycerine g/l at 20oc | Solubility in 50% Isopropyl Alcohol | Solubility in 95% Isopropyl Alcohol | Solubility in Propylene Glycol |
10 | Very Soluble | Insoluble | Very Soluble |
Alkali | Fruit Acids ( Citric/Tartaric) | Preservatives Benzoic Acid | Preservatives Sulphur Dioxide |
3 | 5 | 5 | 3 |
C.A.S Number | Volatile Matter at 135oc Sodium Chloride/Sulphate Max | Water insoluble Matter Max. Purity | Subsidiary dye Max |
2611-82-7 | 18% | 0.2% | 1% |
Dye intermediates Max. | Heavy Metals PPM – Max. | Lead PPM Max. | Arsenic PPM Max. |
0.5% | 40 | 10 | 1 |
Molecular Weight | Spectrometry –A | Spectrometry –B |
|
604.48 | Max in water at ca 505 nm at pH7 | red solution in water |
|
Chemical Name Definition | Trisodium 2-hydroxy-1-(4-sulfonato-1-nephthylazo) naphthalene-6,8-disulfonate Ponceau 4R consists essentially of trisodium 2-hydroxy-1(4-sulfonato-1-naphthylazo) naphthalene-6,8-disulfonate and subsidary colouring matters together with sodium chloride and/or sodium sulfate as the principal uncoloured components.
Ponceau 4R is described as the sodium salt. The calcium and the potassium salt are also permitted. |
Structural Formula C20H11N2Na3O10S3 |
|
Organic Compounds other than colouring matters | [4-Aminonaphthalene-1-sulfonic acid / 7-hydroxynaphthalene-1,3-disulfonic acid / 3-hydroxynaphthalene-2,7-disulfonic acid / 6-hydroxynaphthalene-2-sulfonic acid / 7-hydroxynaphthalene-1,3-6-trisulfonic acid] - Total not more than 0.5% |
