Table E.13.
Specifications for disodium diphosphate (E 450(i)) according to Commission Regulation (EU) No 231/2012 and as INS 450(i) according to JECFA (2012a,b)
| Commission Regulation (EU) No 231/2012 | JECFA (2012a,b) | |
|---|---|---|
| Assay | Content not less than 95% of disodium diphosphate. P2O5 content not less than 63.0% and not more than 64.5% | Not less than 95.0% |
| Description | White powder or grains | White, crystalline powder or granules |
| Identification | ||
| Test for sodium | Passes test | Passes test |
| Test for phosphate | Passes test | Passes test |
| Solubility | Soluble in water | Soluble in water |
| pH | Between 3.7 and 5.0 (1% solution) | 3.7–5.0 (1 in 100 solution) |
| Purity | ||
| Loss on drying | Not more than 0.5% (105°C, 4 h) | Not more than 0.5% (105°, 4 h) |
| Water‐insoluble matter | Not more than 1% | Not more than 1% |
| Fluoride | Not more than 10 mg/kg (expressed as fluorine) | Not more than 10 mg/kg |
| Arsenic | Not more than 1 mg/kg | Not more than 3 mg/kg |
| Cadmium | Not more than 1 mg/kg | – |
| Lead | Not more than 1 mg/kg | Not more than 4 mg/kg |
| Mercury | Not more than 1 mg/kg | – |
| Aluminium | No more than 200 mg/kg | – |