Alginic acid, a widely used natural polysaccharide, which is generally derived from brown seaweeds such as Kelp, Gulfweed, Ascophyllum and Macroalgae. It is an O-acetylated linear polymer of β-1,4-linked D-mannuronic acid with a C-5 epimer, L-guluronic acid. Alginic acid is hydrophilic and forms a viscous gum when hydrated. Its color ranges from white to yellowish-brown. It is sold in filamentous or powdered forms. Due to its excellent hydrophilicity, film formation, biodegradability and biocompatibility, alginic acid has been widely concerned and applied.
| Item | Alginic Acid |
|---|---|
| CAS Number | 9005-35-7 |
| Catalog Number | MC9005357 |
| Molecular Formula | (C6H8O6)n |
| Production Process | Extracted from marine algae |
| Appearance | White to yellowish-brown filaments or powder |
| Grain Size | Customized |
| Viscosity (20°C), mpa.s | Customized |
| pH | 1.3-5.5 |
| Loss on Drying | ≤15% |
| Arsenic (As) | ≤3 ppm |
| Heavy Metal | ≤40 ppm |
Note: The parameters of the product can be adjusted according to your requirements.
The addition of alginic acid to some antacid preparations can improve their effectiveness in treating and relieving the symptoms of gastroesophageal reflux disease (GERD). This is mainly due to the fact that alginic acid can absorb 200-300 times its weight in water and solutes at low pH, producing a high viscosity, high pH gel. This forms a physical barrier floating in the gastric acid contents, reducing acid reflux into the esophagus. In addition, the ability of alginic acid to swell in water and create gels is essential in the production of pharmaceuticals. Such alginic acid gels are used as disintegrants, thus allowing the functional components of the drug to to be rapidly dissolved and absorbed and to act.
Alginic acid is mainly used as a binder and thickening agent in the food industry. For example, it can be used as a binder for meat and as a thickening agent for desserts, sauces, ice cream, etc. In addition, it can be combined with a variety of ions to produce a range of salts such as sodium alginate, potassium alginate and calcium alginate, which can be further used in the production of food additives.
It has been shown that alginic acid can be used as a catalyst, and it replaces a traditional substrate as a renewable raw material. Alginic acid catalysts are creating new catalytic possibilities for the field of organic chemistry.
In textile and paper industry, alginic acid is used for waterproofing and fireproofing fabrics. In technical and industrial applications, alginic acid is used in casting, textile screen printing, and welding rods. In environmental protection industry, alginic acid is used to treat and purify waste water. In arts and crafts industry, alginic acid is used for craft castings, fine art castings, and taxidermy. In beauty industry, alginic acid is used to keep moisture in cosmetics and thicken them.
As a first-class supplier of marine biomaterials, we have experienced experts and professional R & D laboratories. We can provide our customers with alginic acid for different application scenarios. Depending on your requirements, we customize our products for you with different grain sizes and viscosities. If you would like more information, please feel free to contact us.
For Research Use Only. Not for use in diagnostic or therapeutic procedures.
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