Sodium Alginate CAS 9005-38-3

Sodium alginate is a water-soluble polysaccharide derived from brown seaweed. It is widely used as a thickener, stabilizer, gelling agent and film-former in food, pharmaceutical, textile printing, personal care and other industrial formulations.

We supply consistent-quality sodium alginate from Chinese factories, with stable viscosity grades, competitive bulk prices and full technical support (COA, MSDS, TDS, samples).

📧 Email: info@industrochem.com – Send us your required grade, viscosity and application, and we will reply with a tailored quotation and technical data pack.

Physicochemical Properties

*Exact specs can be adjusted according to your internal standard (food/FCC, pharma, industrial).

Applications

1. Food & Beverage (E401)

• As a thickener and stabilizer in sauces, salad dressings, dairy products, yogurt, ice cream and desserts.
• Provides smooth mouthfeel, suspension stability, freeze–thaw resistance and controlled viscosity.
• Used in restructured foods, fruit preparations and bakery fillings for water retention and anti-syneresis.

2. Pharmaceutical & Nutraceutical

• Used as a binder and disintegrant in tablets and capsules.
• Thickening agent in oral suspensions, syrups and antacid/GERD formulations (forms a protective gel with calcium ions).
• Carrier or matrix polymer in controlled-release dosage forms and microencapsulation systems.

3. Textile Printing & Dyeing

• Common printing thickener for reactive dyes on cotton, viscose and blended fabrics.
• Delivers good color yield, levelness and easy washing-off, with low impact on shade and handle.

4. Personal Care & Household

• Rheology modifier in toothpaste, facial masks, lotions, shampoos, gels and hand soaps.
• Provides natural, mild thickening and helps stabilize emulsions and suspensions.

5. Other Industrial Uses

• Binder for welding rods, ceramics and foundry molds.
• Thickener and stabilizer in coatings, paper, adhesives and construction chemicals.
• Component of immobilized enzyme/cell carriers and hydrogel systems in biotech and water treatment.

If you tell us your industry (food, pharma, textile, cosmetic, etc.) and process conditions, we can recommend the most suitable viscosity grade and quality standard.

Storage Conditions

To maintain product quality during transport and storage:

• Store in a cool, dry and well-ventilated warehouse. Recommended temperature: ≤ 25°C, relative humidity < 65%.
• Keep bags tightly sealed after opening to avoid moisture absorption and caking (sodium alginate is hygroscopic).
• Avoid direct sunlight, high temperature, strong acids and strong oxidizing agents.
• Use strictly on a FIFO (first in, first out) basis.
• Typical shelf life: 24 months from production date in unopened original packaging (exact shelf life can follow your factory COA).

Safety Precautions

Sodium alginate is generally regarded as a low-toxicity, non-irritant material and is widely approved for use in food, cosmetics and pharmaceuticals.

Basic handling advice for workers:

• Avoid generating excessive dust; local exhaust ventilation is recommended at handling points.
• Wear dust mask/respirator, safety glasses and gloves when handling large quantities.
• Inhalation: move to fresh air; seek medical attention if discomfort persists.
• Skin contact: wash with soap and water; remove contaminated clothing.
• Eye contact: rinse cautiously with water for several minutes; seek medical advice if irritation continues.
• Spill: sweep or vacuum up the dry powder carefully and place in appropriate containers; avoid dispersing dust.

Material is not classified as hazardous under CLP in typical SDS, but local regulations and your internal HSE rules should always be followed.

For detailed safety information and transport classification, we can provide MSDS, COA and other regulatory documents with your inquiry.