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CAS NO.9005-32-7
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Alginic acid, also called algin or alginate, is an anionic polysaccharide distributed widely in the cell walls of brown algae, where through binding with water it forms a viscous gum. In extracted form it absorbs water quickly; it is capable of absorbing 200-300 times its own weight in water. Its colour ranges from white to yellowish-brown. It is sold in filamentous, granular or powdered forms.
Alginate absorbs water quickly, which makes it useful as an additive in dehydrated products such as slimming aids, and in the manufacture of paper and textiles. It is also used for waterproofing and fireproofing fabrics, as a gelling agent, and for thickening drinks, ice cream and cosmetics.
Alginic acid (alginato) is also used in culinary arts, most notably in the Spherification techniques of Ferran Adrià.Due to its ability to absorb water quickly, alginate can be changed through a lyophilization process to a new structure that has the ability to expand. It is used in the weight loss industry as an appetite suppressant.
English name: |
Alginic acid |
CAS: |
9005-32-7 |
EINECS |
232-680-1 |
Appearance |
White to yellow fibrous powder |
Assay,% |
≥99% |
Molecular Formula: |
(C6H8O6)n |
Solubility : |
H2O: insoluble, but swells |
Sensitive : |
Hygroscopic |