General purpose lemon yellow, greener in shade than Tartrazine
Description | Bright Yellow fine powder |
Colour Index Number | Colour Index reference | Associated FD & C | Approved Additive Code |
C.I.47005 | FOOD YELLOW 13 |
| E104 |
Class | Light Stability | Heat Stability 100oc | Heat Stability 200oc |
Quinoline | 5 | 4 | 3 |
Solubility in water 20oc g/l | Pure Dye Content – Av. | Pantone Reference | Suitability for blending |
150 grams | 70% | 101 | yes |
Solubility in Glycerine g/l at 20oc | Solubility in 50% Isopropyl Alcohol | Solubility in 95% Isopropyl Alcohol | Solubility in Propylene Glycol |
40 | Slight Soluble | Insoluble | Soluble |
Alkali | Fruit Acids ( Citric/Tartaric) | Preservatives Benzoic Acid | Preservatives Sulphur Dioxide |
2 | 5 | 2 | 5 |
C.A.S Number | Volatile Matter at 135oc Sodium Chloride/Sulphate Max | Water insoluble Matter Max. Purity | Subsidiary dye Max |
95193-83-2 | 30% | 0.2% | 1.5% |
Dye intermediates Max. | Heavy Metals PPM – Max. | Lead PPM Max. | Arsenic PPM Max. |
0.5% | 40 | 10 | 1 |
Molecular Weight | Spectrometry –A | Spectrometry –B |
|
477.38 | Max in water at ca 411 nm at pH7 | Yellow solution in water |
|
Chemical Name Definition | The disodium salt of the disulfonates of 2-(2-Quinolyl) indan-1,3-dione (principal component) Tartrazine consists essentially of trisodium 5-hydroxy-1-(4-sulfonatophenyl) (4-sulfonatophenylazo)-H-pyrazole-3-carboxylate and subsidiary colour matters together with sodium chloride and/or sodium sulfate as the principal uncoloured components.
Tartrazine is described as the sodium salt. The calcium and the potassium are also permitted. |
Structural Formula C18H9N Na2O8S2 (principal component) | |
Organic Compounds other than colouring matters | [2-methylquinoline / 2-methylquinoline-sulfonic acid / Phthalic acid / 2,6-dimethyl quinoline / 2,6-dimethyl quinoline sulfonic acid ] - Total not more than 0.5% |
