Description

Alginic Acid is a naturally occurring, hydrophilic polysaccharide derived primarily from brown seaweed. This versatile biopolymer is valued for its unique ability to form viscous solutions and stable gels, making it an indispensable functional ingredient across multiple industries. Key sectors that rely on its properties include food and beverage, pharmaceuticals, biotechnology, and personal care, where it serves as a thickener, stabilizer, gelling agent, and encapsulation matrix.

Application

• Food & Beverage Industry: Used as a thickener, stabilizer, and gelling agent in products like dairy desserts, sauces, bakery fillings, and fruit preparations to improve texture and shelf-life.
• Pharmaceuticals: Employed as a disintegrant in tablet formulations, a binder in granulation processes, and a key component in controlled-release drug delivery systems and wound dressings.
• Biotechnology & Life Sciences: Serves as a matrix for cell encapsulation, immobilization of enzymes, and as a scaffold material in tissue engineering and 3D bioprinting applications.
• Personal Care & Cosmetics: Functions as a viscosity modifier, film-former, and moisturizing agent in lotions, creams, toothpaste, and facial masks.
• Industrial Applications: Utilized in textile printing as a thickener for dye pastes and in water treatment processes for its metal-binding and flocculation properties.
• Dental Impressions: A key component in alginate-based dental impression materials due to its rapid gelation with calcium ions.

Basic Information

Product Name	Alginic Acid
CAS No.	9005-32-7
Molecular Formula	(C6H8O6)n
Molecular Weight	~10,000 - 600,000 g/mol (Polymer)
Synonyms	Algin; Alginic acid, sodium salt (common derivative); E400; Kelp acid; Poly(1,4-β-D-mannuronate-1,4-α-L-guluronate); (1→4)-Linked β-D-mannuronate and α-L-guluronate copolymer; Polymanuronate-guluronate copolymer; Alginate acid
EINECS	232-680-1

Quality Control

Our Alginic Acid is manufactured under strict quality management systems. We offer various grades, including Food Grade (FCC), Pharmaceutical Grade (USP/EP), and Technical Grade, each meeting stringent specifications for purity, viscosity, and gel strength. Every batch is supported by a comprehensive Certificate of Analysis (COA) detailing key parameters such as assay, heavy metal content, microbial limits, and loss on drying. Our quality commitment ensures compliance with relevant standards including ISO, GMP, and REACH.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect its performance and flow properties.

Specification

Item	Specification
Appearance	White to yellowish fibrous powder
Identification (IR)	Conforms
Assay (as Alginic Acid)	Min. 91.0%
pH (1% Solution)	2.0 - 3.5
Loss on Drying	Max. 15.0%
Sulfated Ash	Max. 8.0%
Heavy Metals (as Pb)	Max. 20 ppm
Arsenic (As)	Max. 3 ppm
Lead (Pb)	Max. 5 ppm
Microbial Total Plate Count	Max. 5000 cfu/g
Yeast & Molds	Max. 500 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.