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432784

Sigma-Aldrich

Sodium Polyacrylate

cross-linked

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Synonym(s):
Poly(acrylic acid), partial sodium salt-graft-poly(ethylene oxide), 2-propenoic acid, homopolymer, sodium salt
CAS Number:
27599-56-0
MDL number:
MFCD00217697

Quality Level

100

form

powder (Free-flowing granular)

crosslinking

cross-linked

particle size

90-850 μm

density

0.54 g/mL at 25 °C (lit.)

InChI

1S/C3H4O2.Na/c1-2-3(4)5;/h2H,1H2,(H,4,5);/q;+1/p-1

InChI key

NNMHYFLPFNGQFZ-UHFFFAOYSA-M

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This Item
M273014082208.17081
Sodium Polyacrylate cross-linked

Sigma-Aldrich

432784

Sodium Polyacrylate

Methyl acrylate 99%, contains ≤100 ppm monomethyl ether hydroquinone as inhibitor

Sigma-Aldrich

M27301

Methyl acrylate

Sodium acrylate 97%

Sigma-Aldrich

408220

Sodium acrylate

Sodium caprylate EMPROVE® EXPERT, Ph. Eur., ChP, NF

SAFC

8.17081

Sodium caprylate

form

powder (Free-flowing granular)

form

liquid

form

powder

form

solid

density

0.54 g/mL at 25 °C (lit.)

density

0.956 g/mL at 25 °C (lit.)

density

-

density

-

crosslinking

cross-linked

crosslinking

-

crosslinking

-

crosslinking

-

particle size

90-850 μm

particle size

-

particle size

-

particle size

-

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

500

General description

Sodium Polyacrylate (ASAP) is an acrylic sodium salt based hydrophilic polymer with carbonyl and sodium as major groups present in the structure. Both groups facilitate the polymeric chain with absorption potential. It can be used as a superabsorbent material as, in the presence of a liquid, the ASAP chain swells and forms a gel substance.

Application

Absorbent for aqueous-based spills. Retention and slow release aid for water.

Features and Benefits

Superabsorbent polymer. Absorbs many times its weight of aqueous fluids.
Absorbs aqueous fluids to give gels which retain fluids under stress. Polymer swells in water but does not dissolve. Amount of aqueous fluid absorbed decreases with increasing salt content.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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