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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| Synonyms | Ammonium alum |
| Definition | |
|---|---|
| Einecs | 232-055-3 |
| Chemical name | Aluminium ammonium sulphate |
| Chemical formula | AlNH4(SO4)2 · 12 H2O |
| Molecular weight | 453,32 |
| Assay | Content not less than 99,5 % |
| Description | Large, colourless crystals or white powder |
| Identification | |
| Test for aluminium | Passes test |
| Test for ammonium | Passes test |
| Test for sulphate | Passes test |
| Solubility | Freely soluble in water, soluble in ethanol |
| Purity | |
| Alkali metals and alkaline earths | Not more than 0,5 % |
| Selenium | Not more than 30 mg/kg |
| Fluoride | Not more than 30 mg/kg |
| Arsenic | Not more than 3 mg/kg |
| Lead | Not more than 3 mg/kg |
| Mercury | Not more than 1 mg/kg |
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