ALGINIC ACID

Article No.	Grade	Purity	Cas no.	Molecular Formula	Molecular Weight	H.S. Code	Shelf Life
A0016105000	LR		9005-32-7	(C₆H₈O₆)n	48000-186000	3913.1010	60 Months

Physical Properties

Physical state at 20 °C

Solid

Colour

White powder

Melting Point/ Freezing point [°C]

300 °C

Appearance:	White to Light Yellow powder
Heavy metal (as Pb):	Max 0.004%
Arsenic (As):	Max 0.0005%
Identifications:	Passes test
Microbial contamination :	1 gm is free from Escherichia.coli and 10 g is free from salmonellae
Acid value (mg KOH/gm) :	Min 230.0
Loss on dryig (at 105°C; 4 hrs):	Max 15.0%
pH (3% solution in water):	1.5 - 3.5
Total ash:	Max 4.0%
Assay (as carboxylic acid groups (COOH); on anhydrous basis):	19.0 - 25.0%