Sodium alginate / alginate

English name：Sodium alginate；Alginic acid monosodium salt

Other names:  Alginate;Sodium alginate glue; Alginate sodium salt

CAS No.: 9005-38-3

Molecular formula: (C6H7NaO6) n

Molecular weight structure unit: theoretical value 198.11, average real value 222.00, macromolecule 32000-250000

Grade: ar

Content: ≥ 98.0%

Viscosity (10g/l, 20 ℃): ≥ 800MPa s

Loss on drying: ≤ 22.0%

Lead: ≤ 0.001%

Arsenic: ≤ 0.0002%

Physicochemical properties: white or light yellow powder. A hydrophilic polysaccharide from kelp, a seaweed plant, is almost odorless and tasteless. It is sensitive to humidity, slowly soluble in water, forming a viscous colloidal solution, and insoluble in ethanol, ether, chloroform and acids with pH lower than 3. The solution will not condense when heated. The pH value of 1% aqueous solution is 6-8, and the viscosity is stable when the pH value is 6-9. When heated to more than 80 ℃, the viscosity decreases.

Purpose: biochemical research. It can be used as stabilizer, thickener, artificial semi permeable membrane and mordant

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