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Alginic acid
Alginic acid, also called algin or alginate, seaweed acid, sea acid, alginic acid is an anionic polysaccharide distributed widely in the cell walls of brown algae, where it, through binding water, 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.
Main Uses:
1. In the pharmaceutical industry: it is a main raw material in producing the Gaviscon Tablets, the tablet disintegrating agent and the new drug PSS agent. It has a strong dispersing and emulsifying property.
2. In the food industry: it can combine with many ions into the alginate series products. It is used for producing the health foods or the health food additives, such as the sodium alginate, the potassium alginate and the calcium alginate.
3. In the environmental protection industry: it is used for conducting the wastewater purification utilizing its absorbability.