CAS 9003-01-4 Poly(acrylic acid) - Materials / Alfa Chemistry

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Hydrophilic Polymers

Poly(acrylic acid)

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Catalog Number

ACM9003014-26

Product Name

Poly(acrylic acid)

Structure

CAS

9003-01-4

Category

Hydrophilic Polymers

Description

Poly (acrylic acid) (PAA) is hygroscopic, brittle and colorless in nature with Tg at nearly 106oC. At temperatures above 200 to 250oC, it loses water and becomes an insoluble crosslinked polymer anhydride. Solubility of dried PAA in water increases with rise in temperatures. Concentrated solutions of PAA in water is thixotropic in nature.

IUPAC Name

prop-2-enoic acid

Molecular Weight

average Mw 1800

Molecular Formula

C3H4O2;CH2=CHCOOH;C3H4O2

Canonical SMILES

C=CC(=O)O

InChI

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

InChI Key

NNMHYFLPFNGQFZ-UHFFFAOYSA-M

Boiling Point

286 °F at 760 mm Hg (NTP, 1992);286 °F at 760 mm Hg (NIOSH, 2016);141.2 °C;142 °C;141 °C;286°F;286°F

Melting Point

55 °F (NTP, 1992);55 °F (NIOSH, 2016);13.5 °C;13.56 °C;13°C;14 °C;55°F;55°F

Flash Point

130 °F (NTP, 1992);121 °F (NIOSH, 2016);54 °C (open cup);122 °F (50 °C) (open cup);48-55 °C c.c.;121°F;121°F

Density

1.0497 at 68 °F (USCG, 1999);1.05 (NIOSH, 2016);1.0511 g/cu cm at 20 °C;1.54 g/mL at 25 °C/4 °C;Relative density (water = 1): 1.05;1.05;1.05

Solubility

greater than or equal to 100 mg/mL at 63° F (NTP, 1992);Miscible (NIOSH, 2016);13.88 M;Miscible with alcohol, and ether;Miscible with ethanol, ethyl ether; soluble in acetone, benzene, carbon tetrachloride;Miscible with chloroform;Miscible with water /1X10+6 mg/L/ at 25 °C;Soluble in methanol, ethanol, dioxane, dimethylformamide, 2-propanol, formamide, ethylene glycol, and acetic acid;Soluble in water;1000 mg/mL;Solubility in water: miscible;Miscible

Application

s of PAA may include:
to study solute diffusion in Polyvinyl alcohol/PAA copolymer hydrogel
synthesizing poly(N-isopropylacrylamide)-block-PAA copolymer which responds to both temperature and pH stimuli
in preparing block copolymer of oligo (methyl methacrylate)/PAA for micellar delivery of hydrophobic drugs
as thickening agent for adhesives.

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Color/Form

Acrid liquid;Liquid;Colorless liquid;Colorless liquid or solid (below 55 degrees F)

Complexity

55.9

Corrosivity

Corrosive to metals

Covalently-Bonded Unit Count

EC Number

201-177-9;618-347-7;611-106-7;616-286-0

Exact Mass

72.021129g/mol

Features And Benefits

They can interact with or be dissolved by water or other polar substances.

Formal Charge

Heat of Vaporization

10,955.1 gcal/gmole

Heavy Atom Count

ICSC Number

0688

Log P

0.35 (LogP);log Kow = 0.35;0.35;0.36 (estimated)

MDL Number

MFCD00084394

MeSH Entry Terms

2-propenoic acid;acrylate;acrylic acid;acrylic acid, aluminum salt;acrylic acid, ammonium salt;acrylic acid, Ca (2:1) salt;acrylic acid, Ca (2:1) salt, dihydrate;acrylic acid, cobalt (2+) salt;acrylic acid, Fe (3+) salt;acrylic acid, magnesium salt;acrylic acid, potassium salt;acrylic acid, silver salt;acrylic acid, sodium salt;acrylic acid, zinc salt;Hystoacril;magnesium acrylate;vinylformic acid

Monoisotopic Mass

72.021129g/mol

NSC Number

165257;114472;112123;112122;106037;106036;106035;106034;226569;4765

Odor

Acrid odor and fumes;Quality: rancid, sweet; hedonic tone: unpleasant;Distinctive, acrid odor

Other Experimental

Polymerizes readily in the presence of oxygen;Corrosive liquid;BP: 122.0 °C at 400 mm Hg; 103.3 °C at 200 mm Hg; 86.1 °C at 100 mm Hg; 66.2 °C at 40 mm Hg; 39.0 °C at 10 mm Hg; 27.3 °C at 5 mm Hg;1 ppm in air = 3 mg/cu m;Heat of Fusion: 9.51 kJ/mol at 12.5 °C;Activated carbon adsorbability: 0.129 g/g carbon;Saturated concentration in air: 12.6 g/cu m at 20 °C, 22.8 g/cu m at 30 °C;Ratio of specific heats of vapor: 1.121; Heat of polymerization: -463 BTU/lb= -257 cal/g= -10.8X10+5 J/kg; Reid vapor pressure: 0.2 psia;Liquid heat capacity: 0.460 BTU/lb-F at 106 °F; Saturated vapor density: 0.00106 lb/cu ft at 70 °F; Ideal gas heat capacity: 0.257 BTU/lb-F at 75 °F;Bulk density: 8.6 lb/gal at 20 °C;Henry's Law constant = 3.7X10-7 atm-cu m/mol at 25 °C (est);Hydroxyl radical reaction rate constant = 1.75X10-11 cu cm/molec-sec at 25 °C;Ozone reaction rate constant = 6.5X10-19 cu cm/molec-sec at 25 °C;Glass transition temperature: 106-126 °C; decomposes above 250 °C, liberating carbon dioxide;Hygroscopic; forms clumps when added to water

Packaging

Packaging
5, 100, 250 g in poly bottle

Refractive Index

Index of refraction: 1.4224 at 20 °C/D;Index of refraction: 1.4185 at 25 °C;Index of refraction = 1.544 at 25 °C

Rotatable Bond Count

RTECS Number

AS4375000;AT4680000

Stability

Stable under recommended storage conditions. Contains the following stabilizer(s): Mequinol (>/=0.018 -

Storage Temperature

2-8°C

UNII

J94PBK7X8S

UN Number

2218;2218;2218;2218;2218;2218

Vapor Density

2.5 (NTP, 1992) (Relative to Air);2.5 (Air = 1);Relative vapor density (air = 1): 2.5

Vapor Pressure

3.2 mm Hg at 68 °F ; 5 mm Hg at 81.1° F (NTP, 1992);3 mm Hg (NIOSH, 2016);3.97 mmHg;3.97 mm Hg at 25 °C;Vapor pressure, Pa at 20 °C: 413;3 mmHg;3 mmHg

XLogP3

0.3

MSDS

Download MSDS

COA

Download COA

Spec Sheet

Download Spec Sheet

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