Food grade and dental grade sodium alginate

Specifications

SODIUM ALGINATE

CAS NO: 9005-38-3

Molecular formula: C5H7O4COONa

[Properties]:

White or light yellowish powder, odorless and tasteless, dissolve in water, insoluable in ethanol and ether.

[Main applications]:

1) Food industry:

a. Stabilizer 
As a stabilizer of ice cream sodium alginate can avoid of ice crystal and make the product tasty. It also applies to the mixed drinks, such as ice lolly, iced fruit juice and iced milk, etc. When adding some into dairy products like refined cheese, canned cream and dry cheese, the final product will not stick to the package. Moreover, Sodium Alginate can keep the product fine and avoid of splitting open if it is used as a cover of mild food. 

b. Thickener and Emulsion 
Sodium Alginate can raise the products stabilization and decrease the liquid out when it is used in salad flavoring, pudding jam, tomato ketchup and the canned products. 

c. Hydration 
Sodium Alginate will make noodle, vermicelli or ice powder have a strong cohesiveness, pulling, bending and reduce breaking, special suitable in the less gluten content of wheat flour. Sodium Alginate also can equal the products internal form and hold water so that it can be kept for a long time. Adding some into iced sweet products, Sodium Alginate will come into being a protecting cover against heated quickly, and it can quicken the flavor sending forth, raise melting point of the products. 

d. Coacervation 
Sodium Alginate suits to make kinds of gel product, which can be kept the fine state, non-leakage and contraction. So it also fits iced products and man-made products. In addition, it also can be used as the sugar coating of bread, the cover of filling and cake and the auto-coagulant of canned food, which will not change in high/low temperature and acid conditions. It also can replace carrageenan to make a crystal soft sugar, elastic, unstick, transparent. 

e. Film- formation

Using this specific property, it can be used as a cover for fruit, meat and seaweed products away from air and keep it stored longer.

2) Pharmaceutical industry:

a. Dental impression material

b. Haemostatic
The solution of Sodium Alginate will have a wadding sediment, which molecular structure is like thread. Making use of this mechanism, Sodium Alginate can be used in all kinds of haemostatic, such as haemostatic gauze, haemostatic cotton, scald gauze, spraying haemostatic, etc.

c. Preventing and exclusion from radioactive harmful metals

d. Salve, tablet and their agent
By using the character of sodium alginate’s gel and thickening sodium alginate can be used as the additive of some medicines.

3) Printing and textile industry:

As a reactive printing agent, it has a special property. During the chemical reaction of fiber and reactive dye, the dye is fixed in fiber and printing agent does not attend this reaction. And using sodium alginate as printing agent makes the product outline clear, color bright, feeling smooth. This agent is also suitable for cotton, wool, silk and synthetic fiber. The products of medium and low viscosity fit for the printing requirements by net or roll style. Actually the printing agent mixed with low-viscosity Sodium Alginate is more stable than with the other viscosity, which is the result to produce a high content of printing agent. This agent will make a dense cover during drying and raising dyeing.

4) Other industry:

a. Papermaking Starching: 
When using the solution of Sodium Alginate replacing part of Rosin as dispersing agent of paper pulp of paper surface starching, it can make paper gloss and smooth, raise the absorption of printing ink, wax, soil and papers pliability and tough. 

b. Coating of the Welding Electrode: 
The mixture of welding-coating powder and Sodium Alginate can stick and humify the coating of welding and make it easy to burn into ash and lighten flying during welding operation.

Sodium Alginate can also apply to industrial binding, thickener, stabilizer, fertilizer etc.