Cas No.：9005-34-9
Standard：

E 403 AMMONIUM  ALGINATE

Chemical name               Ammonium salt of alginic acid
Chemical formula            (C6H11NO6)n
Molecular weight            10 000-600 000(typical average)

Description:  White to yellowish fibrous or granular powder

Identification
Test for ammonium             Passes test
Test for alginic acid         Passes test

Purity
Loss on drying              Not more than 15% (105°C, 4 hours)
Sulphated ash               Not more than 7% on the dried basis
Water insoluble matter Not more than 2% on the anhydrous basis
Formaldehyde                Not more than 50mg/kg
Arsenic                     Not more than 3mg/kg
Lead                        Not more than 2mg/kg
Mercury                     Not more than 1mg/kg
Cadmium                     Not more than 1mg/kg

Microbiological criteria
Total plate count           Not more than 5000 colonies per gram
Yeast and moulds            Not more than 500 colonies per gram
Escherichia coli            Absent in 5g
Salmonella spp.             Absent in 10g