Sodium Alginate Food Grade CAS 9005

Product Name:            Sodium Alginate
Type:                           Thickeners
CAS No:                      9005-38-3
Molecular Formula:     C5H7O4COONa
EINECS No:                905-385-3
Place of Origin:            China (Mainland)
Appearance:                White powder
Stability:                       Stable

Note: Custom specification manufactures can be provided according to user requirements.

Basic Information

(1) Sodium alginate is a kind of natural polysaccharide extracted from alginate plant. It is white granules or yellow powder of indefinite shape, odorless and tasteless.

(2) Sodium alginate is insoluble in methanol, ethanol, acetone and chloroform, and soluble in water and sodium hexametaphosphate solution.


(1) Hydrophily: Sodium alginate is easy to dissolve in the water and forms thick solution, and it is mainly used in food additives.

(2) High fluidity: Sodium alginate has good fluidity when used in dyeing, and it’s effect is better than other colloids.

(3) Gel properties: Sodium alginate can be used in jelly and bionic food.

(4) Thickening property: Sodium alginate is widely used in food,drink and daily products.

(5) Stability: Sodium alginate is used as a better stabilizer and thickener in cold drinks.

(6) Healcare: As a natural cellulose, Sodium alginate could lower the pressure and the fat of the blood. It can also eliminate heavy metals from the body , could help us lose weight to make us much more healthy.


(1) Sodium alginate is mainly used in jelly and bionic shark fin, meats, drinks as the food additives etc.

(2) Sodium alginate is used as a better stabilizer and thickener in cold drinks.

(3) Sodium alginate can also be used in pharmaceutical, textile, printing and dyeing, papermaking, daily chemical industry and other industries.

Storage Condition

Store in a sealed container and place in a cool, dry place.

Technical Parameters

Test Item Standard Result
Color Cream colored or lighter Qualified
Sieve fraction According to the need 60 mesh
Viscosity (mPa.s)
(20℃, 1% distilled water solution)
According to the need 650
Moisture (%) ≤15.0 12.05
pH value 6.0~8.0 6.50
Ash (%) 18~27 24.7
Water insoluble matter (%) ≤0.6 <0.6
Lead (mg/kg) ≤5 <5
Arsenic (mg/kg) ≤2 <2
Conclusion Qualified according to GB1886.243-2016


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