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24936-41-2

24936-41-2 structural image
Product Name: POLY(4-METHYL STYRENE)
Formula: C9H10
Synonyms: p -Methylstyrene polymer;4-Methylstyrene homopolymer;Poly(p -methylstyrene);Poly(4-vinyltoluene)
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CHEMICAL AND PHYSICAL PROPERTIES

Physical Description P-methylstyrene appears as a clear colorless liquid with an aromatic odor. Usually shipped with an inhibitor such as tert-butyl catechol added May polymerize if contaminated or subjected to heat. If polymerization takes place inside a closed container, the container may rupture violently. Vapors irritate the mucous membranes. Less dense than water and insoluble in water. Hence floats on water. Used in making plastics, especially as a monomer for polyesters.
Color/Form Liquid
Boiling Point 172 °C
Melting Point -37.8 °C
Flash Point 125 to 127 °F (NFPA, 2010)
Solubility In water, 89 mg/L at 25 °C
Density 0.9173 g/cu cm at 25 °C
Vapor Density Relative vapor density (air = 1): 4.1
Vapor Pressure 1.81 [mmHg]
LogP log Kow = 3.35
Stability/Shelf Life Stable under recommended storage conditions.
Autoignition Temperature 515 °C.
Viscosity 0.0020986 Pa.s (liquid) at 239.02 K
Heat of Combustion -4.8229X10+09 J/kmol
Heat of Vaporization 6.20X10+07 J/kmol at 25 °C
Surface Tension 0.043227 Newtons/m at 239.02 K
Refractive Index Index of refraction: 1.5420 at 20 °C/D
Kovats Retention Index 980.5 965.9 1000 985 977.5 977.6 977.9 966 980 994 982 978 985
Other Experimental Properties Liquid molar volume = 0.129067 cu m/kmol; heat of formation = 1.1464X10+08 J/kmol
Chemical Classes Other Classes -> Aromatic Hydrocarbons

COMPUTED DESCRIPTORS

Molecular Weight 118.18 g/mol
XLogP3 3.6
Hydrogen Bond Donor Count 0
Hydrogen Bond Acceptor Count 0
Rotatable Bond Count 1
Exact Mass 118.078250319 g/mol
Monoisotopic Mass 118.078250319 g/mol
Topological Polar Surface Area 0 Ų
Heavy Atom Count 9
Formal Charge 0
Complexity 86.2
Isotope Atom Count 0
Defined Atom Stereocenter Count 0
Undefined Atom Stereocenter Count 0
Defined Bond Stereocenter Count 0
Undefined Bond Stereocenter Count 0
Covalently-Bonded Unit Count 1
Compound Is Canonicalized Yes

PRODUCT INTRODUCTION

description

P-methylstyrene appears as a clear colorless liquid with an aromatic odor. Usually shipped with an inhibitor such as tert-butyl catechol added May polymerize if contaminated or subjected to heat. If polymerization takes place inside a closed container, the container may rupture violently. Vapors irritate the mucous membranes. Less dense than water and insoluble in water. Hence floats on water. Used in making plastics, especially as a monomer for polyesters.