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Propane
Physical Properties
Color  -  Colorless
Odor  -  Odorless
Density -  \(0.02115 \; lbm/in^3 \;\)@\(\; -49 \; F^\circ \; (0.5853 \; g/cc \;\)@\(\; -45 \; C^\circ)\)
Molar Mass  -  \(44.097 \; g/mol \;(44.097 \; g/mol)\)
Vapor Pressure  -  \(75.0 \; torr \;\)@\(\; -119 \; F^\circ \; (0.1000 \; bar \;\)@\(\; -83.8 \; C^\circ)\) 
Chemical Properties
Chemical Formula  -  \(C_3H_8\)
State of Matter  -  Gas
Flammability  -  Highly
Electric Properties
Dielectric Constant -  \(1.61 \;\)@\(\; 32 \; F^\circ \; (1.7 \;\)@\(\;  0.000 \; C^\circ)\)
Thermal Properties
Melting Point  -  \(-306.4 \; F^\circ \; (-188 \; C^\circ)\)
Boiling Point  -  \(-44 \; F^\circ \; (-42.2 \; C^\circ)\)
Flash Point  -  \(-155.2 \; F^\circ \; (-104 \; C^\circ)\)
Autoignition Temp.  -  \(878 \; F^\circ \; (470 \; C^\circ)\) to \(1020 \; F^\circ \; (550 \; C^\circ)\)
LFL  -  \(2.1\)%
UFL  -  \(9.5\)%
PEL  -  \(1000 \; ppm\)
Heat of Fusion  -  \(34.14 \; BTU/lb \; (79.35 \; J/g)\)
Heat of Vaporization  -  \(185.7 \; BTU/lb \; (431.6 \; J/g)\)
Thermal Conductivity  -  \(0.125 \; BTUin/hrft^3F^\circ \;\)@\(\; 14.5 \; psi \;\)@\(\;  80.3 \; F^\circ \; (0.0180 \; W/mK \;\)@\(\; 0.100 \; MPa \;\)@\(\;  26.9 \; C^\circ )\)

Propane is an alkane hydrocarbon with the chemical formula \(C_3H_8\), consisting of three carbon atoms bonded in a straight chain, with the remaining valencies satisfied by eight hydrogen atoms.  It is a colorless, odorless, and highly flammable gas that is most commonly known as a primary component of liquefied petroleum gas (LPG), alongside butane.  Propane is easily liquefied under pressure, making it convenient to store and transport in tanks.  This property makes it a versatile fuel source, widely used for heating homes and water, powering outdoor grills, camping stoves, and vehicles, and as a refrigerant. In industrial settings, propane can also serve as a petrochemical feedstock for producing other chemicals.  Due to its flammability, safety precautions are essential when handling and storing propane.

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