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Sodium alginate

Alginic acid sodium salt from brown algae, Algin, Sodium alginate
Número CAS:
Número FEMA:
Número MDL:
Número E:
E 401

fonte biológica


Nível de qualidade




reg. compliance

FDA 21 CFR 117
FDA 21 CFR 150.161
FDA 21 CFR 173.310


flavors and fragrances


see Safety & Documentation for available documents

alérgeno alimentar

no known allergens



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Descrição geral

Sodium alginate is the sodium salt of alginic acid, a natural polysaccharide found in brown algae. It is generally used as a stabilizer and thickener in the food industry. Sodium alginate may undergo cross-linking in the presence of divalent cations such as Ca2+ to form biodegradable stable gels, which finds applications as a material for cell encapsulation and immobilization.


Sodium alginate can be used to prepare:
  • Cationized casein-based polyelectrolyte complex for fragrance-controlled release applications.
  • Apple aroma microcapsules for cosmetic applications.


1 kg in poly bottle
5 kg in poly drum

Outras notas

A straight-chain, hydrophilic, colloidal, polyuronic acid composed of glucuronic and mannuronic acid residues.

Código de classe de armazenamento

11 - Combustible Solids



Ponto de fulgor (ºF)

Not applicable

Ponto de fulgor (ºC)

Not applicable

Equipamento de proteção individual

Eyeshields, Gloves, type N95 (US)

Certificado de análise

Insira o número de lote para pesquisar o Certificado de análise (COA).

Certificado de origem

Insira o número de lote para pesquisar o Certificado de origem (COO).

  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. What is the solubility of Sodium alginate, Product W201502?

    We do not perform solubility testing on this product. However, when we test the pH we perform the test at a 1% concentration in water

  4. What is the sample size for Sodium alginate, Product W201502?

    To inquire about the sample size of this product, please contact our SAFC Customer and Order Services at 800-227-4563

  5. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  6. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  7. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

A major constituent of brown algae for use in high-capacity Li-ion batteries.
Kovalenko I, et al.
Science, 334(6052), 75-79 (2011)
Preparation of aroma microcapsules with sodium alginate and tetradecylallyldimethylammonium bromide (TADAB) and its potential applications in cosmetics
Song J and Chen H
Flavour and Fragrance Journal, 33(2), 160-165 (2018)
Polyelectrolyte complex from cationized casein and sodium alginate for fragrance controlled release
Zhang Y, et al.
Colloids and Surfaces. B, Biointerfaces, 178, 439-444 (2019)
Ruben Foresti et al.
Scientific reports, 10(1), 3205-3205 (2020-02-23)
The design of 3D complex structures enables new correlation studies between the engineering parameters and the biological activity. Moreover, additive manufacturing technology could revolutionise the personalised medical pre-operative management due to its possibility to interplay with computer tomography. Here we
Encyclopedia of Food and Color Additives, 1, 67-70 (1997)

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