Water-soluble salt of alginic acid, a cream-coloured powder from brown seaweed used as a thickener, gelling agent and stabiliser.
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Sodium alginate is the sodium salt of alginic acid, a natural polysaccharide extracted from brown seaweed. It is a white to pale-yellow powder that dissolves in water to form viscous solutions and forms gels in the presence of calcium ions.
Its main uses are:
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