MilliporeSigma
All Photos(3)

Documents

432784

Sigma-Aldrich

Sodium Polyacrylate

cross-linked

Sign Into View Organizational & Contract Pricing

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

Quality Level

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

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
192023D6750243051
Sodium Polyacrylate cross-linked

432784

Sodium Polyacrylate

Sodium deoxycholate ≥97% (titration)

D6750

Sodium deoxycholate

Poly(sodium 4-styrenesulfonate) average Mw ~70,000

243051

Poly(sodium 4-styrenesulfonate)

density

0.54 g/mL at 25 °C (lit.)

density

1.2 g/mL at 25 °C

density

-

density

0.801 g/mL at 25 °C (lit.)

crosslinking

cross-linked

crosslinking

-

crosslinking

-

crosslinking

-

particle size

90-850 μm

particle size

-

particle size

-

particle size

-

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.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

ppe

dust mask type N95 (US), Eyeshields, Gloves


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Preparation and swelling properties of crosslinked sodium polyacrylate
Liu M and Guo T
Journal of Applied Polymer Science, 82(6), 1515-1520 (2001)
Biocompatible Polymeric Materials and Tourniquets for Wounds (2010)
Synthesis of self-crosslinking sodium polyacrylate hydrogel and water-absorbing mechanism
Hua F and Qian M
J. Mater. Sci., 36(3), 731-738 (2001)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service