- Y Diweddaraf sydd Ar Gael (Diwygiedig)
- Gwreiddiol (Fel y’i mabwysiadwyd gan yr UE)
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 | Cellulose methyl ether |
Definition | Methyl cellulose is cellulose obtained directly from strains of fibrous plant material and partially etherified with methyl groups |
Einecs | |
Chemical name | Methyl ether of cellulose |
Chemical formula | The polymers contain substituted anhydroglucose units with the following general formula: C6H7O2(OR1)(OR2)(OR3) where R1, R2, R3 each may be one of the following:
|
Molecular weight | From about 20 000 to 380 000 |
Assay | Content not less than 25 % and not more than 33 % of methoxyl groups (-OCH3) and not more than 5 % of hydroxyethoxyl groups (-OCH2CH2OH) |
Description | Slightly hygroscopic white or slightly yellowish or greyish odourless and tasteless, granular or fibrous powder |
Identification | |
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Solubility | Swelling in water, producing a clear to opalescent, viscous, colloidal solution. Insoluble in ethanol, ether and chloroform. Soluble in glacial acetic acid |
pH | Not less than 5,0 and not more than 8,0 (1 % colloidal solution) |
Purity | |
Loss on drying | Not more than 10 % (105 °C, 3 hours) |
Sulphated ash | Not more than 1,5 % (800 ± 25 °C) |
Arsenic | Not more than 3 mg/kg |
Lead | Not more than 2 mg/kg |
Mercury | Not more than 1 mg/kg |
Cadmium | Not more than 1 mg/kg |
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