Description

Sodium Alginate is a natural, water-soluble polysaccharide derived from brown seaweed, widely recognized for its exceptional gelling, thickening, and stabilizing properties. Its unique ability to form heat-stable gels in the presence of calcium ions makes it a critical functional ingredient across numerous industries. This versatile hydrocolloid is essential for manufacturers in the food, pharmaceutical, and technical sectors seeking reliable, plant-based texturizing agents. We supply high-purity Sodium Alginate CAS NO 9005-38-3 to meet the stringent demands of global industrial applications.

Application

• Food Industry: Used as a thickener, stabilizer, and gelling agent in dairy products (ice cream, yogurt), desserts, bakery fillings, and fabricated foods.
• Pharmaceuticals: Serves as a disintegrant in tablets, a binder in wet granulation, and a key component in wound dressings and dental impression materials.
• Biotechnology & Cell Culture: Employed for cell encapsulation and immobilization due to its gentle gelation properties.
• Textile Printing: Acts as a thickener for reactive dye pastes, providing sharp print definition.
• Personal Care: Functions as a viscosity modifier and film-former in lotions, creams, and toothpaste.
• Water Treatment: Used as a coagulant aid and for heavy metal ion removal.

Basic Information

Product Name	Sodium Alginate
CAS No.	9005-38-3
Molecular Formula	(C6H7O6Na)n
Molecular Weight	~10,000 - 600,000 g/mol (Polymer)
Synonyms	Algin; Alginic Acid Sodium Salt; E401; Kelcosol; Protanal; Manugel; Keltone; Sodium Polymannuronate
EINECS	232-680-1

Quality Control

Our Sodium Alginate is produced and tested under a strict quality management system to ensure batch-to-batch consistency and compliance with major international standards, including FCC (Food Chemicals Codex) and USP-NF (United States Pharmacopeia) where applicable. Each lot undergoes rigorous analysis for key parameters such as viscosity, pH, and heavy metal content. A comprehensive Certificate of Analysis (COA) is provided with every shipment to guarantee product integrity and traceability.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after opening to prevent caking and degradation due to moisture absorption.

Specification

Item	Specification
Appearance	White to yellowish-brown powder or granules
Identification (IR)	Conforms
Assay (as NaAlg)	91.0 - 106.0%
pH (1% solution)	6.0 - 8.0
Viscosity (1% solution)	Contact for details (Various grades available)
Loss on Drying	≤ 15.0 %
Ash Content	18.0 - 24.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm
Microbiological Total Plate Count	≤ 5,000 cfu/g

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.