Sodium alginate CAS 9005-38-3  (CHONa) is mainly composed of sodium salts of alginate, which is a polysaccharide biopolymer with various characteristics such as wide source, non-toxic, easy degradation, and biocompatibility. Therefore, it has great application value in various industries such as medicine, food, packaging, textile industry, and biomaterials. Sodium alginate is also known as sodium alginate, sodium alginate, sodium alginate, alginate, seaweed gum, and sodium alginate. The main component is the sodium salt of alginate, which is a mixture of glucuronic acid. It is a gum extracted from brown seaweed such as kelp. It can form a viscous colloidal solution and is easy to blend with proteins, starch, pectin, arabic gum, carboxymethyl cellulose, sucrose, glycerol, and sorbitol.

Specification

Melting point: 99 ° C

Density: 1.0 g/cm3 (Temp: 25 ° C)

Appearance: White to Off white powder

PH: 6.0-8.0 (10mg/mL in H2O)

Application

Polymer substances, such as sodium alginate, have functions such as suspension aid, thickening, emulsification, and adhesion. They are mainly used as suspension aids, emulsifiers, thickeners, and capsule materials for microcapsules in pharmaceuticals. Used as an adhesive (1% -3%) and a disintegrating agent (2.5% -10%) for tablets; Used as a diluent in capsules; It is also used to prepare oral sustained-release formulations because it can delay the release of drugs from water-soluble mixed Chemicalbook suspensions; It is widely used as thickener and suspending agent (5%~10%) in paste, ointment and gel, and as stabilizer (1%~3%) in oil in water emulsion. 0.5% to 2.5% aqueous solution can be used to smooth the erosive surface of the skin, which can eliminate and dry water-based secretions. Food additives: emulsifiers, film-forming agents, thickeners

Packaging

25kg/bag

Storage

Sodium alginate has hygroscopicity. The aqueous solution of sodium alginate is stable at pH 4-10 and precipitates at pH<3; When the pH value is greater than 10, hydrolysis occurs while losing viscosity; Metal containers cannot store sodium alginate solutions. During storage, the solution is susceptible to the influence of microorganisms, which can alter its viscosity; When the solution is heated above 70 ℃, the concentration decreases; Hot pressure sterilization can reduce the viscosity of the solution; γ Radiation sterilization can also reduce the viscosity of the solution. Preservatives should be added to external preparations for corrosion prevention. Bulk materials should be stored in airtight containers in a cool and dry place.

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