POLY(ACRYLIC ACID)

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE

clear liquid

MELTING POINT

12 C

BOILING POINT

141 - 142 C

SPECIFIC GRAVITY

1.047 - 1.051

SOLUBILITY IN WATER

soluble

pH

VAPOR DENSITY

AUTOIGNITION

435 C

NFPA RATINGS

Health: 3; Flammability: 2; Instability: 2

REFRACTIVE INDEX

FLASH POINT

48 C

STABILITY

Polymerization will occur under light and heat

ITEM

STANDARD

RESULT

ANALYSIS
METHOD

Purity

≥99.5%

99.74%

YSTM4291-01

Color

≤10 APHA

<10

ASTM D 1209

Moisture

≤0.05%

0.03%

ASTM D 1364

Inhibitor

15+/-5ppm

18

ASTM D 3125

ACIDITY(AS AA)

≤0.01%

0.0031%

ASTM D 1613

CONCLUSION

Fully comply with the standard of enterprise

Acrylic acid is the simplest unsaturated carboxylic acid which has double bond and carboxyl group in C3 one molecule with the formula CH2=CHCOOH. The vinyl group is attached to the carbonyl carbon directly. The systemic name is 2-propenoic acid. Acrylic acid has two reaction points or functional groups required for polymerization process. Purified (glacial) acrylic acid is a clear, colorless liquid with a characteristic acrid odor. It is miscible with water, alcohols and ethers. Acrylic acid is produced from C 3 refinery. Acrylic acid undergoes the typical reactions of a carboxylic acid and forms acrylic esters - basic alkyl esters are methyl, butyl, ethyl acrylate, and 2-ethylhexyl acrylate. Acrylic acid and its esters undergo the reactions of the double bond which readily combine with themselves or other monomers (e.g amides, methacrylates, acrylonitrile, vinyl, styrene and butadiene) to form homopolymers or co-polymers which are used in the production of coatings, adhesives, elastomers, super absorbent polymers, flocculants, as well as fibres and plastics. Acrylate polymers show a wide range of properties dependent on the type of the monomers and reaction conditions.

Alkyl acrylates are clear, volatile liquid; slightly soluble in water and complete soluble in alcohols, ethers and almost organic solvents; Acrylate esters containing a double bond and functional carboxyl group are used chiefly as a monomer or co-monomer in making acrylic