Ponceau 4R
| Specification | |
|---|---|
| Product Name | Ponceau 4R |
| Colour Shade | |
| Synonyms | Acid Red 18 |
| Chemical Name | ( Trisodium 2-hydroxy-1-(4-sulfonato-1-naphtylazo)- naphtalene-6,8-disulfonate |
| C.I. No | 16255 |
| C.I. Name | Food Red 7 |
| FDA Status | --- |
| CAS No. | 2611-82-7 |
| EINECS No. | 220-036-2 |
| E. NUMBER | E-124 |
| Test | EEC (Limit) | |
|---|---|---|
| Total colouring matters calculated as the sodium salt, percent by mass. | Min. | 80 |
| Water insoluble matter, percent by mass. | Max. | 0.20 |
| Combined ether extract, percent by mass. | Max. | 0.20 |
| Unsulfonated Primary aromatic amines, percent by mass. | Max. | 0.01 |
| Subsidiary dyes, percent by mass. | Max. | 1 |
| Organic compound other than colouring matter, percent by mass, MAX. 4-aminonaphthalene-1-sulfonic acid 7-hydroxynaphthalene-1-3-sulfonic acid 3-hydroxynaphthalene-2,7-disulfonic acid 6-hydroxynaphthalene-2-sulfonic acid 7-hydroxynaphthalene-1,3-6- trisulfonic acid |
Max. | 0.50 |
| Heavy metals (as Pb), (mg/kg.) | Max. | 40 |
| Arsenic (mg/kg.) | Max. | 3 |
| Lead (mg/kg.) | Max. | 2 |
| Mercury (mg/kg.) | Max. | 1 |
| Cadmium (mg/kg.) | Max. | 1 |