68606-26-8 - ChemicalBook India

CHEMICAL AND PHYSICAL PROPERTIES

Physical Description	Propylene is a colorless gas with a faint petroleum like odor. It is shipped as a liquefied gas under its own vapor pressure. For transportation it may be stenched. Contact with the liquid can cause frostbite. It is easily ignited. The vapors are heavier than air. Any leak can either be liquid or vapor. It can asphyxiate by the displacement of air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. It is used to make other chemicals. Can cause explosion.
Color/Form	Colorless gas
Odor	Practically odorless; aromatic
Boiling Point	-53.9 °F at 760 mmHg (NTP, 1992)
Melting Point	-301.4 °F (NTP, 1992)
Flash Point	-162 °F (NTP, 1992)
Solubility	44.6 mL/100 mL (NTP, 1992)
Density	0.609 at -52.6 °F (USCG, 1999) - Less dense than water; will float
Vapor Density	1.46 at 32 °F (NTP, 1992) - Heavier than air; will sink (Relative to Air)
Vapor Pressure	1 mmHg at -205.4 °F ; 760 mmHg at -53.9 °F (NTP, 1992)
LogP	log Kow = 1.77
Henry's Law Constant	Henry's Law constant = 1.96X10-1 atm-cu m/mole at 25 °C
Stability/Shelf Life	Stable under recommended storage conditions.
Autoignition Temperature	851 °F (USCG, 1999)
Viscosity	83.4 micropoises at 16.7 °C
Heat of Combustion	-19,692 Btu/lb = -10,940 cal/g = -458.04X10+5 J/kg
Heat of Vaporization	18.42 kJ/mol at BP
Polymerization	A mixture under confinement in a glass pressure bottle at 20 °C polymerized explosively, the polymerization probably being initiated by access of light through the clear glass container. Such alkene-sulfur dioxide co-polymerizations will not occur above a ceiling temperature, different for each alkene.
Odor Threshold	Odor Threshold Low: 23.0 [ppm] Odor Threshold High: 68.0 [ppm] Odor threshold, (recognition/detection) from CHEMINFO
Refractive Index	Index of refraction: 1.3567 at -40 °C/D
Kovats Retention Index	294 283 290 294 289 286 294 295 295 295 295 298 288 290 290 283 290 290 290 283 310 290
Other Experimental Properties	Critical volume: 184 cu cm/mol
Chemical Classes	Toxic Gases & Vapors -> Simple Asphyxiants

COMPUTED DESCRIPTORS

Molecular Weight	42.08 g/mol
XLogP3	1.4
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	42.0469501914 g/mol
Monoisotopic Mass	42.0469501914 g/mol
Topological Polar Surface Area	0 Å²
Heavy Atom Count	3
Formal Charge	0
Complexity	7.5
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

Propylene is a colorless gas with a faint petroleum like odor. It is shipped as a liquefied gas under its own vapor pressure. For transportation it may be stenched. Contact with the liquid can cause frostbite. It is easily ignited. The vapors are heavier than air. Any leak can either be liquid or vapor. It can asphyxiate by the displacement of air. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. It is used to make other chemicals. Can cause explosion.