Poly(Alpha-Methylstyrene) - Materials / Alfa Chemistry

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Poly(Alpha-Methylstyrene)

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Catalog Number

ACMA00017077

Product Name

Poly(Alpha-Methylstyrene)

Category

Polymers

Description

Isopropenylbenzene appears as a colorless liquid. Insoluble in water and less dense than water. Flash point 115°F. May be mildly toxic by ingestion, inhalation and skin absorption. Vapors may be narcotic by inhalation. Used as a solvent and to make other chemicals.;Liquid;COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.;Colorless liquid with a characteristic odor.;Colorless liquid with a characteristic odor.

IUPAC Name

prop-1-en-2-ylbenzene

Molecular Weight

118.18g/mol

Molecular Formula

C9H10;C6H5C(CH3)=CH2;C9H10

Canonical SMILES

CC(=C)C1=CC=CC=C1

InChI

InChI=1S/C9H10/c1-8(2)9-6-4-3-5-7-9/h3-7H,1H2,2H3

InChI Key

XYLMUPLGERFSHI-UHFFFAOYSA-N

Boiling Point

329.7 °F at 760 mm Hg (NTP, 1992);165.4 °C;165.4 °C;164 °C;330°F;330°F

Melting Point

-9 °F (NTP, 1992);-23.2 °C;-23.2 °C;-23 °C;-10°F;-10°F

Flash Point

129 °F (NTP, 1992);83.89 °C (CLOSED CUP);57.8 °C (Cleveland open-cup);54 °C;129°F;129°F

Density

0.91 at 68 °F (USCG, 1999);0.9106;Relative density (water = 1): 0.91;0.91;0.91

Solubility

less than 1 mg/mL at 72° F (NTP, 1992);9.82e-04 M;SOL IN ALC; SOL IN ALL PROPORTIONS IN ACETONE, CARBON TETRACHLORIDE;Sol in benzene, chloroform;Sol in ether;Sol in n-heptane, ethanol;In water, 116 mg/l @ 25 °C;Solubility in water, g/100ml at 20 °C: 0.012 (very poor);Insoluble

Color/Form

Colorless liquid ...

Complexity

96.6

Covalently-Bonded Unit Count

EC Number

202-705-0;607-482-7

Exact Mass

118.07825g/mol

Formal Charge

Heat of Vaporization

404.55 J/g at 25 °C; 326.35 J/g at boiling point

Heavy Atom Count

ICSC Number

0732

Log P

3.48 (LogP);log Kow= 3.48;3.38

MeSH Entry Terms

2-phenylpropene;alpha-methyl-styrene;alpha-methylstyrene;alpha-methylstyrol

Monoisotopic Mass

118.07825g/mol

NSC Number

9400

Odor

... Characteristic odor.;Sharp aromatic odor

Other Experimental

Ionization potential: 8.35 electron volts (eV);Critical volume, 3.26 ml/g; critical density, 0.29 g/ml; specific heat of liquid, 2.0460 J/g deg K at 40 °C, & 2.1757 J/g deg K at 100 °C; specific heat of vapor, 1.2357 J/g deg K at 25 °C; heat of formation of liquid, 112.97 kJ/mol at 25 °C; heat of polymerization, 39.75 kJ/mol; cubical coefficient of expansion, 9.774X10-4 at 20 °C;Hydroxyl radical reaction rate constant = 5.2X10-11 cu cm/molecule-sec @ 25 °C

Refractive Index

Index of refraction: 1.5386 @ 20 °C/D

Rotatable Bond Count

RTECS Number

WL5075300

UNII

D46R9753IK

UN Number

2303;2303;2303;2303

Vapor Density

4.08 (NTP, 1992) (Relative to Air);Relative vapor density (air = 1): 4.08;4.08

Vapor Pressure