416002

Poly(acrylic acid) solution

average M_w ~250,000, 35 wt. % in H₂O

• Synonym(s): PAA
• Linear Formula: (C₃H₄O₂)_n
• CAS Number: 9003-01-4
• MDL number: MFCD00084394
• UNSPSC Code: 12162002
• PubChem Substance ID: 24866051
• NACRES: NA.23

Properties

• form: viscous liquid
• Quality Level: 200
• mol wt: average M_w ~250,000
• 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

Description

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.[1][2][3]

Application

PAA can be used for a variety of applications such as gas sensors, electrical devices, and cosmetics.[4][5]

Safety Information

• pictograms: GHS05,GHS07,GHS09
• signalword: Danger
• hcodes: H318,H335,H410
• pcodes: P261 - P271 - P273 - P280 - P304 + P340 + P312 - P305 + P351 + P338
• Hazard Classifications: Aquatic Acute 1 - Aquatic Chronic 2 - Eye Dam. 1 - STOT SE 3
• target_organs: Respiratory system
• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 1
• flash_point_f: 212.0 °F - closed cup
• flash_point_c: 100 °C - closed cup
• ppe: Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)