Merck
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71238

Sigma-Aldrich

Alginic acid sodium salt from brown algae

BioReagent, suitable for immobilization of micro-organisms

Synonym(s):
Algin, Sodium alginate
CAS Number:
MDL number:
NACRES:
NA.25

Quality Level

biological source

algae (brown)

product line

BioReagent

form

powder

ign. residue

≤30%

loss

≤15% loss on drying

pH

6.0-8.0 (10 mg/mL in H2O)

suitability

in accordance for gelation test
suitable for immobilization of micro-organisms

storage temp.

room temp

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Application

Alginate, a colloidal polyuronic acid structural molecule capable of gelation, is used in the preparation of colloidal biodegradable structures such as gels, biofilms, beads, nanoparticles, and microcapsules suitable for applications that range from gel based separation technologies to drug delivery and cell preservation.

Other Notes

A straight-chain, hydrophilic, colloidal, polyuronic acid composed of glucuronic and mannuronic acid residues.
Immobilization of cells; or enzymes; the alginate matrix can be liquefied by the addition of a chelating agent, making possible the recovery of developing colonies without affecting their continued growth.

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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