Description

Calcium Alginate is a water-insoluble, biocompatible salt derived from alginic acid, a natural polysaccharide found in brown seaweed. This compound is valued for its exceptional gelling, thickening, and film-forming properties, making it a versatile functional ingredient across multiple high-value industries. Key industrial users include manufacturers in the pharmaceutical, food technology, medical device, and textile printing sectors who require reliable, high-purity hydrocolloids.

Application

• Wound Care & Medical Dressings: As a primary component in advanced wound dressings, it forms a soft, biodegradable gel upon contact with exudate, promoting a moist healing environment and facilitating non-traumatic removal.
• Pharmaceutical Formulations: Used as a disintegrant in tablet formulations, a thickening agent in topical creams and pastes, and a matrix for controlled drug delivery systems.
• Food Industry (as INS 404): Functions as a stabilizer, thickener, and gelling agent in products like dessert gels, structured foods, and as a coating to improve texture and shelf life.
• Textile Printing: Serves as an effective thickener for pigment printing pastes, providing sharp print definition and excellent wash-fastness on fabrics.
• Dental Impressions: Used in alginate-based impression materials for creating accurate molds of teeth and oral tissues.
• Biotechnology & Cell Immobilization: Employed to encapsulate enzymes, microorganisms, or cells for bioprocessing and research applications due to its mild gelling conditions.

Basic Information

Product Name	Calcium Alginate
CAS No.	9005-35-0
Molecular Formula	(C12H14CaO12)n
Molecular Weight	Varies (Polymer)
Synonyms	Alginic acid, calcium salt; Calcium polymannuronate; E404; INS 404; Alginate calcium; Calginat; Algin (calcium salt); Manugel DMB
EINECS	232-708-6

Quality Control

Our Calcium Alginate is produced and tested under a strict quality management system to ensure batch-to-batch consistency and compliance with relevant industry standards, including Food Chemical Codex (FCC) and pharmaceutical-grade monographs where applicable. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, viscosity, heavy metal limits, and microbiological quality, ensuring it meets the rigorous demands of our global B2B clients.

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). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White to yellowish fibrous or granular powder
Identification (IR)	Conforms
Assay (as CaO)	Contact for details
Viscosity (1% solution)	Contact for details
Loss on Drying	≤ 15.0 %
Ash Content	18.0 - 27.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Arsenic (As)	≤ 3 ppm
Microbiological Total Plate Count	≤ 1000 cfu/g
Yeast & Molds	≤ 100 cfu/g
E. coli	Negative
Salmonella	Negative

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