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Merck
CN

416002

Poly(acrylic acid) solution

average Mw ~250,000, 35 wt. % in H2O

Synonym(s):

PAA

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About This Item

Linear Formula:
(C3H4O2)n
CAS Number:
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12162002
MDL number:
Technical Service
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form

viscous liquid

Quality Segment

mol wt

average Mw ~250,000

feature

hydrophilic

concentration

35 wt. % in H2O

refractive index

n20/D 1.395

density

1.150 g/mL at 25 °C

SMILES string

OC(=O)C=C

InChI

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

InChI key

NNMHYFLPFNGQFZ-UHFFFAOYSA-M

General description

Poly(acrylic acid) solution (PAA) is an anionic polymer that can be synthesized by the free radical polymerization of acrylic acid. It has a swelling nature that tends to absorb and retain the water. Its high ion exchange capacity makes it useful in the formation of membranes.

Application

PAA can be used for a variety of applications such as gas sensors, electrical devices, and cosmetics.


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signalword

Danger

target_organs

Respiratory system

flash_point_f

212.0 °F - closed cup

flash_point_c

100 °C - closed cup

ppe

Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - Skin Corr. 1 - STOT SE 3

Storage Class

8A - Combustible corrosive hazardous materials



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