Catalog Number
ACMA00017077
Product Name
Poly(Alpha-Methylstyrene)
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 ...
Covalently-Bonded Unit Count
1
EC Number
202-705-0;607-482-7
Heat of Vaporization
404.55 J/g at 25 °C; 326.35 J/g at boiling point
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
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
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
1.9 mm Hg at 68 °F ; 5 mm Hg at 93° F (NTP, 1992);1.90 mmHg;1.9 mm Hg @ 25 °C;Vapor pressure, Pa at 20 °C: 300;2 mmHg;2 mmHg
Viscosity
0.940 cP @ 20 °C
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