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Commission Regulation (EU) No 231/2012 of 9 March 2012 laying down specifications for food additives listed in Annexes II and III to Regulation (EC) No 1333/2008 of the European Parliament and of the Council (Text with EEA relevance)
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There are currently no known outstanding effects for the Commission Regulation (EU) No 231/2012, E 339 (i) MONOSODIUM PHOSPHATE.
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Synonyms | Monosodium monophosphate; Acid monosodium monophosphate; Monosodium orthophosphate; Monobasic sodium phosphate; Sodium dihydrogen monophosphate |
Definition | |
---|---|
Einecs | 231-449-2 |
Chemical name | Sodium dihydrogen monophosphate |
Chemical formula | Anhydrous: NaH2PO4 Monohydrate: NaH2PO4 · H2O Dihydrate: NaH2PO4 · 2H2O |
Molecular weight | Anhydrous: 119,98 Monohydrate: 138,00 Dihydrate: 156,01 |
Assay | After drying at 60 °C for one hour and then at 105 °C for four hours, contains not less than 97 % of NaH2PO4 P2O5 content between 58,0 % and 60,0 % on the anhydrous basis |
Description | A white odourless, slightly deliquescent powder, crystals or granules |
Identification | |
Test for sodium | Passes test |
Test for phosphate | Passes test |
Solubility | Freely soluble in water. Insoluble in ethanol or ether |
pH | Between 4,1 and 5,0 (1 % solution) |
Purity | |
Loss on drying | The anhydrous salt loses not more than 2,0 %, the monohydrate not more than 15,0 %, the dihydrate not more than 25 % (60 °C, 1 hour then 105 °C, 4 hours) |
Water insoluble matter | Not more than 0,2 % on the anhydrous basis |
Fluoride | Not more than 10 mg/kg (expressed as fluorine) |
Arsenic | Not more than 1 mg/kg |
Cadmium | Not more than 1 mg/kg |
Lead | Not more than 1 mg/kg |
Mercury | Not more than 1 mg/kg |
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