Molekula
Alginic acid sodium salt 1000 PI
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Alginic acid sodium salt, also called sodium alginate, is a water-soluble polysaccharide derived from brown seaweed, widely used as a thickening, stabilizing, and gelling agent in food, pharmaceuticals, and textile industries. It forms viscous solutions and gels in the presence of calcium ions, making it ideal for applications like food emulsions, drug encapsulation, and printing inks. This product has a CAS number of 9005-38-3, with the molecular formula C5H5(OH)4O(COO)Na and a molecular weight of 216.12. It is non-hazardous, requiring no special signal word, and can be stored at ambient conditions. Molekula supplies Alginic acid sodium salt 1000 PI from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Viscosity | 1000 mPa.s |
| pH | 6.0 - 8.0 |
| Moisture | ≤15.0 |
| Insoluble matter in water | ≤0.6 |
| Transparency | Conforms |
| Lead (Pb) | ≤4 mg/kg |
| Arsenic (As) | ≤2 |
| Description | Milky white to light yellow powder |
| Size mesh | 80 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90024298 |
| CAS Number | 9005-38-3 |
| Molecular Formula | C5H5(OH)4O(COO)Na |
| Molecular Weight | 216.12 |
| SMILES | C1(C(C(OC(C1O)O)C(=O)[O-])O)O.[Na+] |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 3913100000 |
| Tariff Code | 3913100090 |
Safety & GHS
Hazard statements
- USH01 May form combustible dust concentrations in air
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is sodium alginate (alginic acid sodium salt) used for?
Sodium alginate is commonly used as a thickening, stabilizing, and gelling agent in food (e.g., desserts, dairy products), pharmaceuticals (e.g., drug encapsulation), and industrial applications like adhesives and paper coatings.
What is the chemical formula and molecular weight of sodium alginate?
The chemical formula is **C₅H₅(OH)₄O(COO)Na** and the molecular weight is **216.12 g/mol** (repeating unit).
How should sodium alginate be stored?
Store in a cool, dry place at **ambient temperature**, protected from moisture and contamination. Avoid exposure to strong oxidizing agents.
What grades of sodium alginate does Molekula supply?
Molekula supplies **Food Grade (1000 PI)** sodium alginate, meeting regulatory standards for food and pharmaceutical applications.
Can Molekula supply sodium alginate in bulk quantities?
Yes, we offer **bulk packaging options** (e.g., 25kg bags, 50kg drums) for sodium alginate to accommodate large-scale production needs.
What documentation is provided with a sodium alginate order?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** to ensure compliance and traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.