Product Description
Sodium Alginate (Sodium Polymannuronate) is a natural polysaccharide derived from the cell walls of brown seaweed (Phaeophyceae). It appears as a white to pale yellow granular or fibrous powder, soluble in water to form a viscous colloidal solution.
Widely used as a thickening, gelling, stabilizing, and emulsifying agent, Sodium Alginate is a versatile material in food processing, pharmaceuticals, biotechnology, and textile printing. In laboratories, it is valued for its role in encapsulation, gel formation, and immobilization of cells or enzymes.

Key Features
- Chemical Name: Sodium Alginate (Sodium Polymannuronate)
• Chemical Formula: (C₆H₇NaO₆)ₙ
• CAS Number: 9005-38-3
• Molecular Weight: Variable (typically 50,000–250,000 Da)
• Appearance: White to yellowish granular or fibrous powder
• Solubility: Soluble in water; insoluble in alcohol and organic solvents
• pH (1% solution): 6.0–8.0
• Viscosity: Variable, depending on molecular weight and concentration
• Stability: Stable under normal conditions; sensitive to strong acids
Applications
Laboratory & Research
- Used for gel formation and encapsulation of enzymes, cells, and biomolecules.
• Applied in microencapsulation, drug delivery, and tissue engineering research.
• Utilized as a viscosity modifier and stabilizer in biochemical experiments.
• Commonly used in teaching labs to demonstrate gelation with calcium ions (Ca²⁺).
Industrial Uses
- Widely employed in the food industry as a thickener, stabilizer, and emulsifier (E401).
• Used in pharmaceutical formulations for controlled drug release and suspension stability.
• Essential in textile printing and dyeing as a thickening agent for reactive dyes.
• Applied in cosmetic, paper, and welding industries as a binder and film-forming agent.
• Used in biotechnology for spherical bead formation and immobilized enzyme systems.
Safety & Handling
- Hazard: Non-toxic and biodegradable; may cause mild irritation as dust.
• Precautions: Avoid inhaling dust; wear gloves and goggles during handling.
• Storage: Store in a cool, dry place, in a tightly sealed container, away from moisture.
• Disposal: Dispose of according to local regulations for biodegradable materials.
Why Choose Sodium Alginate from M/S Bright Scientific Co.?
- High-Purity Grade suitable for laboratory, pharmaceutical, and industrial applications.
• Consistent Viscosity & Quality ensuring reproducible results.
• Reliable Source for universities, food industries, and R&D laboratories.
• Competitive Pricing for both small and bulk quantities.
• Trusted Supplier with nationwide delivery and excellent service support.
Price in Bangladesh
Available in 100 g, 250 g, 500 g, 1 kg, and bulk packs at competitive prices.
Bulk discounts available for industrial users, universities, and research institutes.
Contact Information
M/S Bright Scientific Co.
📞 Phone: 01711285976






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