Name：Sodium Alginate
Cas: 9005-38-3
Purity: 99%
MOQ: 1KG
To guarantee full compliance with global safety, quality, and regulatory standards, Shandong Zhishang Chemical operates under strict quality management frameworks across extraction, refining, packaging, and dispatch.
Our production infrastructure and products comply with the following international credentials:
ISO 9001:2015: Standardized Quality Management System ensuring batch-to-batch consistency and full supply chain traceability.
ISO 22000 & HACCP: Food Safety Management System compliance for hygienic handling and processing of food-grade additives.
HALAL & KOSHER Certified: Meets strict religious and dietary compliance guidelines for global food manufacturers.
EU REACH Registered: Fully compliant with European Union chemical import standards for seamless distribution across Europe.
Pharmacopoeial Standards: Complies with strict purity and safety limits established by USP (United States Pharmacopeia), EP (European Pharmacopoeia), and FCC (Food Chemicals Codex).
Directory Guidance on Sodium Alginate
| Melting point | 99 °C |
| density | 1.0 g/cm3(Temp: 25 °C) |
| FEMA | 2014 | ALGIN (LAMINARIA SPP. AND OTHER KELPS) |
| storage temp. | 2-8°C |
| solubility | Slowly soluble in water forming a viscous, colloidal solution, practically insoluble in ethanol (96 per cent). |
| form | powder |
| color | White to Off-white |
| PH | 6.0-8.0 (10mg/mL in H2O) |
| Odor | odorless |
| biological source | synthetic |
| Water Solubility | Soluble in water. Insoluble in alcohol, chloroform and ether. |
Quality assurance is integral to our operations at Shandong Zhishang Chemical. Every production batch of Sodium Alginate undergoes rigorous self-inspection protocols in our analytical testing facilities prior to release.
Standard Analytical Test Parameters & Inspection Limits:
Viscosity Testing (Rotational Viscometer):
Measured in a 1% aqueous solution at 20°C (1% Brookfield, 20°C). Viscosity profiles are customizable across various industrial tiers:
Low Viscosity: 20 – 100 mPa·s
Medium Viscosity: 200 – 500 mPa·s
High / Ultra-High Viscosity: 600 – 1200+ mPa·s
Purity & Assay Value:
Dry basis assay ranges between 90.0% and 106.0% (calculated as sodium alginate), satisfying strict USP and FCC monographs.
Heavy Metal & Trace Element Profiling (ICP-MS):
Total Heavy Metals (as Pb): $\le 10\text{ ppm}$
Lead (Pb): $\le 2\text{ ppm}$
Arsenic (As): $\le 1.5\text{ ppm}$
Mercury (Hg): $\le 1\text{ ppm}$
Cadmium (Cd): $\le 1\text{ ppm}$
Microbiological Control:
Total Aerobic Microbial Count: %%EDITORCONTENT%%lt; 1000\text{ CFU/g}$
Total Yeast & Mold Count: %%EDITORCONTENT%%lt; 100\text{ CFU/g}$
E. coli & Salmonella: Absent per 25g sample.
Physical Characteristics:
Loss on Drying: $\le 15.0\%$
pH (1% aqueous solution): 6.0 – 8.0
Mesh Size: 30 mesh to 120 mesh options available depending on dispersion speed requirements.
1. Food Industry (Stabilizer & Gelling Agent)
Spherification & Encapsulation: Interacts with calcium chloride or calcium lactate to form protective gel membranes around liquid centers (popping boba, artificial caviar, fruit beads).
Dairy & Frozen Desserts: Prevents ice crystal formation, improves creaminess, and provides thermal stability in ice creams and yogurts.
Bakery & Fruit Preparations: Retains moisture, enhances dough workability, and prevents syneresis (water weeping) in fruit jams and pastry fillings.
2. Pharmaceuticals & Biotechnology
Controlled Drug Release: Serves as a matrix-forming polymer in tablets to control drug release kinetics.
Anti-Reflux Formulations: Forms a protective alginate raft over stomach contents upon contact with gastric fluid, physically preventing acid reflux.
Advanced Wound Care: Highly absorbent alginate fibers absorb exudate in exuding wounds while maintaining a moist environment conducive to healing.
3. Textile Printing & Technical Manufacturing
Reactive Dye Printing: Serves as a thickener for reactive dyes on cotton, rayon, and silk. Because sodium alginate does not react with reactive dyes, it rinses off easily after fixation, leaving fabrics soft and vibrant.
Paper Coating: Increases paper surface strength, improves smoothness, and controls ink absorption.
Related References
wikipedia-Sodium Alginate
Manufacturer of Sodium Alginate
Zhishang Chem is based in Shandong, serves the whole country, faces the world, and is determined to become an excellent supplier and service provider in the chemical industry.
As a top manufacturer of cosmetic raw materials, disinfectants, flavors and fragrances in China, we are committed to producing high-quality products and have won high praise from customers all over the world.
In the next 10 years or even longer, Zhishang will always adhere to the tenet of quality first and reputation first, and devote itself to providing customers with thoughtful and perfect services.
As a professional Sodium Alginate manufacturer, Zhi shang Chem has served more than 6,000 customers around the world. Because of our high-quality products and professional services, we have won high praise from most of our customers.
Pre-Sales Service
* Timely reply and 24 hours online, the professional team will provide you with the most favorable prices and high-quality products.
* The sample supports testing and inspection.
* Each batch of products will be tested to ensure that its quality meets user needs.
*Packaging can also be made according to customer requirements.
*Any inquiries will be answered by our relevant personnel within 24 hours.
*We will provide you with commercial invoice, packing list, packing list, COA, health certificate and certificate of origin if you need it. If your market has other special requirements, please let us know.
After-Sales Service
*We will monitor the logistics information in real time and will share the information with you.
* You can consult us at any time if you have any questions about the product, and we will answer you in time.
*If you have any questions about the product, you can report it to us, we will deal with it in time for you, and the product can be returned.
1. For products ≤50kg, we recommend using express delivery, which is usually called DDU service (discounted, convenient).
2. For products ≤500kg, we generally recommend air freight, which is usually called FOB, CFR or CIF service (fast and efficient).
3. For products >500kg, we generally recommend shipping by sea, which is usually called FOB, CFR or CIF service (economical, safe).
4. For high-value products, please choose air or express to ensure the safety of product transportation.
Company Info
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