Molekula
Alginic acid sodium salt
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 is a polysaccharide derived from brown seaweed, used in pharmaceuticals, food, and biomedical applications as a thickener, stabilizer, and gelling agent. It is available in powder form with a molecular weight of 216.12 g/mol, CAS number 9005-38-3, and molecular formula C5H5(OH)4O(COO)Na. Stored at ambient temperatures, it carries no signal word. Molekula supplies Alginic acid sodium salt 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
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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100 g — £30.90 per pack ex VAT · £37.08 inc. VAT
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 |
|---|---|
| Appearance | Light yellow powder |
| Viscosity | Approximately 1000 mpa.s |
| pH | 6.0-8.0 |
| Loss on Drying | ≤15% |
| Solubility | Soluble in cold and warm water |
| Purity | ≥100% |
| Calcium (Ca) | ≤0.3% |
| Particle Size (mesh) | 30-40 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 60689063 |
| 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 alginic acid sodium salt used for?
It is commonly used as a thickening agent, stabilizer, and emulsifier in food, pharmaceuticals, and cosmetics.
What is the chemical formula and molecular weight of alginic acid sodium salt?
The formula is C5H5(OH)4O(COO)Na with a molecular weight of 216.12 g/mol.
How should alginic acid sodium salt be stored?
It should be stored at ambient temperature, protected from moisture and heat.
What grade of alginic acid sodium salt does Molekula supply?
We supply laboratory-grade alginic acid sodium salt suitable for research and development.
Can Molekula supply alginic acid sodium salt in bulk?
Yes, we can supply alginic acid sodium salt in bulk quantities—please contact us for pricing and availability.
What documentation comes with an order of alginic acid sodium salt?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS) with the shipment.
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.