SODIUM ALGINATE


DEFINITION

Synonyms : E 401
Einecs:
Chemical Name : Sodium salt of alginic acid
Chemical formula : (C 6 H 7 NaO 6 ) n
Molecular weight : 10 000-600 000 (typical average)
Assay : Yields, on the anhydrous basis, not less than 18 % and not more than 21 % of carbon dioxide corresponding to not less than 90,8 % and not more than 106,0 % of sodium alginate (calculated on equivalent weight basis of 222)


DESCRIPTION

Nearly odourless, white to yellowish fibrous or granular powder


PURITY
Loss on drying Not more than 15 % (105 °C, 4 hours)
Water insoluble matter Not more than 2 % on the anhydrous basis
Formaldehyde Not more than 50 mg/kg
Arsenic Not more than 3 mg/kg
Lead Not more than 5 mg/kg
Mercury Not more than 1 mg/kg
Cadmium Not more than 1 mg/kg
Microbiological Criteria
Total plate count Not more than 5 000 colonies per gram
Yeast and moulds Not more than 500 colonies per gram
Escherichia coli Absent in 5 g
Salmonella spp. Absent in 10 g

PACKING & STORAGE

Packing 25 Kg, Paper Bags with inner PE liner Bags
Shelf Life 2 Years After Manufacturing Date, Under Recommended Conditions
Storage Cold And Dry Conditions, Sealed Packaging