Product Overview
Calcium alginate is an insoluble alginate salt formed by the reaction of alginate with calcium ions (Ca²⁺). Derived from natural brown seaweed, it is a biopolymer material widely used for its excellent gel-forming ability, high absorbency, and biocompatibility.
Key Benefits
- Exceptional water absorption (up to 20× weight)
- Biocompatible and biodegradable
- Gentle encapsulation of cells, proteins, and actives
- Calcium ion exchange functionality (e.g., Na⁺ exchange)
- Supports moist environment and controlled release systems
Technical Specifications
|
Calcium Alignate |
||
|
Items |
Specifications/SC/T3401-2006 |
Results |
|
Viscosity |
According to the customer's requirements |
According to the customer's requirements |
|
Color |
White or pale yellow |
White or pale yellow |
|
CaO % |
≤8-15% |
13 |
|
Moisure |
≤15% |
12 |
|
PH |
6.0-9.0 |
7 |
|
Pb, % |
≤4mg/kg |
≤4mg/kg |
|
As |
≤2mg/kg |
≤2mg/kg |
|
Total colony count |
≤5000 cfu/g |
≤5000 cfu/g |
|
Mesh |
80 mesh |
80 mesh pass 100% |
Technical Positioning
| Property | Calcium Alginate | Sodium Alginate |
|---|---|---|
| Solubility | Insoluble (gel-forming) | Water-soluble |
| Gel Behavior | Strong, stable hydrogel | Requires crosslinking |
| Absorption Capacity | Very high | Moderate |
| Ion Activity | Calcium ion exchange | Limited |
| Application Focus | Medical / Functional | Food / General |
Typical Applications
- Medical & Wound Care
- Tissue Engineering & Biotechnology
- Food Industry
- Industrial Applications
Quality & Compliance
- COA (Certificate of Analysis) available for each batch
- Controlled purity of calcium and alginate composition
- Strict monitoring of heavy metals and impurities
- Full batch traceability
- ISO 9001 quality management system
- Medical / pharmaceutical grade compliance: USP / EP
Optional documentation: Technical Data Sheet (TDS) / Safety Data Sheet (SDS) / Custom specifications for R&D applications
Customization Options
We offer flexible customization to meet specific application and processing requirements:
- Viscosity and gel strength adjustment based on formulation needs and salt type
- Particle size / mesh size control for different processing systems
- Application-specific performance optimization, such as gel strength, solubility, or emulsification
- Custom packaging and private labeling support for brand-specific requirements
Packaging & Supply
- Standard packaging: 25kg bags (kraft paper with inner PE)
- Moisture-protected packaging to ensure product stability
- Flexible MOQ based on specifications
- Stable raw material sourcing for consistent supply
- Reliable lead time and global shipment support
FAQ
Q1: How does calcium alginate support wound healing and hemostasis?
Calcium alginate absorbs wound exudate, forms a protective hydrophilic gel, and releases calcium ions that activate coagulation, creating an optimal moist environment for tissue regeneration.
Q2: Can it encapsulate sensitive biological materials?
Yes, calcium alginate forms gels under mild conditions without damaging cells, proteins, or other bioactive substances, making it suitable for tissue engineering and regenerative medicine.
Q3: Is it suitable for food applications?
Yes, food-grade calcium alginate is widely used in spherification, edible coatings, and food preservation due to its gelling and film-forming properties.
Q4: Can it be used in industrial processes like enzyme immobilization or water treatment?
Yes, calcium alginate can immobilize enzymes or microorganisms for continuous catalysis or fermentation, and it can adsorb heavy metals in water treatment applications.
Q5: Do you provide different grades for medical, food, and industrial applications?
Yes, we offer tailored grades with controlled purity, heavy metal limits, and safety certifications to meet medical, food, and industrial standards.
Q6: Do you offer samples and technical support for evaluation and customization?
Yes, we provide samples, technical guidance, and customized specifications to support R&D, product development, and industrial applications.
Send us your requirements to get a quick recommendation.
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