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Commission Directive 2008/84/EC (repealed)Dangos y teitl llawn

Commission Directive 2008/84/EC of 27 August 2008 laying down specific purity criteria on food additives other than colours and sweeteners (Text with EEA relevance) (Codified version) (repealed)

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Dyma’r fersiwn wreiddiol (fel y’i gwnaed yn wreiddiol).

E 460 (ii) POWDERED CELLULOSE

DefinitionPurified, mechanically disintegrated celluslose prepared by processing alpha-cellulose obtained as a pulp from natural strains of fibrous plant materials
Chemical nameCellulose
Linear polymer of 1:4 linked glucose residues
Einecs232-674-9
Chemical formula(C6H10O5)n
Molecular weight(162)n (n is predominantly 1 000 and greater)
AssayContent not less than 92 %
DescriptionA white, odourless powder
Identification
A.Solubility
Insoluble in water, ethanol, ether and dilute mineral acids. Slightly soluble in sodium hydroxide solution
B.Suspension test
Mix 30 g of the sample with 270 ml of water in a high-speed (12 000 rpm) power blender for 5 minutes. The resultant mixture will be either a free-flowing suspension or a heavy, lumpy suspension which flows poorly, if at all, settles only slightly and contains many trapped air bubbles. If a free-flowing suspension is obtained, transfer 100 ml into a 100-ml graduated cylinder and allow to stand for 1 hour. The solids settle and a supernatant liquid appears
Purity
Loss on dryingNot more than 7 % (105 oC, 3 hours)
Water-soluble matterNot more than 1,0 %
Sulphated ashNot more than 0,3 % determined at 800 ± 25 oC
pH of a 10 % suspension in waterThe pH of the supernatant liquid is between 5,0 and 7,5
StarchNot detectable
To 20 ml of the dispersion obtained in identification, test B, add a few drops of iodine solution and mix. No purplish to blue or blue colour should be produced
ArsenicNot more than 3 mg/kg
LeadNot more than 5 mg/kg
MercuryNot more than 1 mg/kg
CadmiumNot more than 1 mg/kg
Heavy metals (as Pb)Not more than 10 mg/kg
Particle sizeNot less than 5 μm (not more than 10 % of particles of less than 5 μm)

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