| Synonyms | Iron meso- tartrate; complexation product of sodium tartrate with iron(III) chloride |
| Definition | Iron tartrate is manufactured by the isomerisation of L-tartrate to an equilibrium mixture of D-, L- and meso -tartrate followed by addition of iron(III) chloride. |
| CAS number | 1280193-05-9 |
| Chemical name | Iron(III) complexation product of D(+)-, L(-)- and meso-2,3 dihydroxybutanedioic acids |
| Chemical formula | Fe(OH) 2 C 4 H 4 O 6 Na |
| Molecular weight | 261,93 |
| Assay | |
|---|---|
| meso-tartrate | > 28 %, expressed as the anion on dry basis |
| D(-)- and L(+)-tartrate | > 10 %, expressed as the anion on dry basis |
| Iron(III) | > 8 %, expressed as the anion on dry basis |
| Description | Dark green aqueous solution typically comprising ca 35 % by weight complexation products |
| Identification | Highly soluble in water |
| Positive tests for tartrate and iron | |
| pH of a 35 % aqueous solution of complexation products between 3,5 and 3,9 | |
| Purity | |
| Chloride | Not more than 25 % |
| Sodium | Not more than 23 % |
| Arsenic | Not more than 3 mg/kg |
| Lead | Not more than 2 mg/kg |
| Mercury | Not more than 1 mg/kg |
| Oxalate | Not more than 1,5 % expressed as oxalate on dry basis] |
Textual Amendments
F1Inserted by Commission Regulation (EU) 2015/1739 of 28 September 2015 amending Annex II to Regulation (EC) No 1333/2008 of the European Parliament and of the Council and the Annex to Commission Regulation (EU) No 231/2012 as regards the use of the iron tartrate as an anti-caking agent in salt and its substitutes (Text with EEA relevance).