Poly(acrylic acid) CAS#9003-01-4

CAS Number: 9003-01-4
Chemical Formula: C5H10O2
Synonyms:

CARBOPOL(R) 940
CARBOPOL(TM) 941
CARBOPOL(TM) 910

Appearance: White Powder

MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)

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Product Details

Poly(acrylic acid) CAS#9003-01-4

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.
Polyacrylic acid (PAA) is a hydrophilic colloidal solution, similar in properties to water-soluble natural gums. It is a clear, colorless, viscous stable solution. Applications include the modification of aqueous formulations for such end uses as cleaners, binders, adhesives, and emulsion paints. The sodium, potassium, and ammonium salts are effective thickeners and dispersants useful in both natural and synthetic latex systems. PAA in ceramic applications improves dry strength, dispersant action, and improved workability of the clays. PAA is stable to hydrolysis and is not susceptible to bacterial degradation.

Poly(acrylic acid) Chemical Properties

Melting point	95 °C
Boiling point	116 °C
density	1.2 g/mL at 25 °C
Tg	106
vapor pressure	2.64-3.57hPa at 20-25℃
refractive index	n20/D 1.442
Fp	100 °C
storage temp.	2-8°C
solubility	Swellable in water and glycerin and, after neutralization, in ethanol (95%). Carbomers do not dissolve but merely swell to a remarkable extent, since they are three-dimensionally crosslinked microgels.
form	Powder
color	White
pH	2.5 -3.0 (1% water solution)
Water Solubility	Soluble in water.
Dielectric constant	2.7 - 4.5（0.0℃）
Cosmetics Ingredients Functions	FILM FORMING BINDING GEL FORMING VISCOSITY CONTROLLING EMULSION STABILISING
InChI	1S/C3H4O2.Na/c1-2-3(4)5;/h2H,1H2,(H,4,5);/q;+1/p-1
InChIKey	WLAMNBDJUVNPJU-UHFFFAOYSA-N
SMILES	OC(=O)C=C
LogP	0.23-0.27 at 20℃ and pH3.59-3.63
IARC	3 (Vol. 19, Sup 7) 1987
EPA Substance Registry System	Polyacrylic acid (9003-01-4)

Safety Information

Hazard Codes	C,T,Xi
Risk Statements	45-46-34-36/37/38
Safety Statements	53-45-36-27-26
WGK Germany	1
RTECS	AT4680000
TSCA	TSCA listed
HS Code	39069090
Storage Class	10 - Combustible liquids
Hazard Classifications	Aquatic Acute 1 Aquatic Chronic 2 Eye Dam. 1 STOT SE 3
Hazardous Substances Data	9003-01-4(Hazardous Substances Data)
Toxicity	LD50 oral in rat: 2500mg/kg

Product Application of Poly(acrylic acid) CAS#9003-01-4

Polyacrylic acid is used in disposable diapers and in ion exchange resins. It is also used to study solute diffusion in polyvinyl alcohol/polyacrylic acid copolymer hydrogel. It is also employed as a thickening, suspending, emulsifying and dispersing agent in pharmaceuticals, cosmetics, adhesives and paints. Further, it is used for the preparation of poly(N-isopropylacrylamide)-block-polyacrylic acid copolymer which responds to both temperature and pH stimuli. In addition to this, it is used in preparing block copolymer of oligo (methyl methacrylate)/PAA for micellar delivery of hydrophobic drugs.

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