| Cyclohexane |
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Physical Properties
Color - Colorless
Odor - Sweet and Pungent Odor
Density - \(0.02813 \; lbm/in^3 \;\)@\(\; 68 \; F^\circ \; (0.7785 \; g/cc \;\)@\(\; 20 \; C^\circ)\)
Viscosity - \(0.894 \; cP \;\)@\(\; 77 \; F^\circ \; (0.894 \; cP \;\)@\(\; 25 \; C^\circ)\)
Molar Mass - \(84.16 \; g/mol \;(84.16 \; g/mol)\)
Vapor Pressure - \(75.0 \; torr \;\)@\(\; 66.7 \; F^\circ \; (0.100 \;bar \;\)@\(\; 19.3 \; C^\circ)\)
Surfacr Tension - \(24.65 \; dynes/cm \;\)@\(\; 77 \; F^\circ \;(24.65 \; dynes/cm \;\)@\(\; 25 \; C^\circ) \)
Chemical Properties
Chemical Formula - \(C_6H_{12}\)
State of Matter - Liquid
Flammability - Highly Flammable
Critical Pressure - \(30602 \; torr \; (40.800 \; bar)\)
Critical Temperature - \(537.22 \; F^\circ \; (28068 \; C^\circ)\)
Critical Density - \(0.00986 \; lb/in^3 \; (0.273 \; g/cc)\)
Critical Molar Volume - \(18.8 \; in^3/mol \; (308 \; cm^3/mol)\)
Electrical Properties
Dielectric Constant - \(2.015 \;(2.015)\)
Thermal Properties
Melting Point - \(43.9 \; F^\circ \; (6.59 \; C^\circ)\)
Boiling Point - \(177 \; F^\circ \; (80.7 \; C^\circ)\)
Flash Point - \(-4 \; F^\circ \; (-20 \; C^\circ)\)
Autoignition Temp. - \(473 \; F^\circ \; (245 \; C^\circ)\)
LFL - \(1.3\)%
UFL - \(8.1\)%
PEL - \(300 \; ppm\)
Heat of Fusion - \(13.70 \; BTU/lb \; (31.84 \; J/g)\)
Heat of Vaporization - \(153.2 \; BTU/lb \; (356.1 \; J/g)\)
Specific Heat Capacity - \(0.2997 \; BTU/lbF^\circ \;\)@\(\; 77 \; F^\circ \; (1.254 \; J/gC^\circ \;\)@\(\; 25 \; C^\circ )\)
Thermal Conductivity - \(0.854 \; BTUin/hrft^3F^\circ \;\)@\(\; 77 \; F^\circ \; (0.123 \; W/mK \;\)@\(\; 25 \; C^\circ )\)
Optical Properties
Refractive Index - \(1.4266 \;\)@\(\; 68 \; F^\circ \; \lambda \; 589.3 \; mm \; (1.4266 \;\)@\(\; 20 \; C^\circ \; \lambda \; 589.3 \; mm)\)
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Cyclohexane is a cycloalkane with the chemical formula \(C_6H_{12}\). It consists of a ring of six carbon atoms, each bonded to two hydrogen atoms and two adjacent carbon atoms. This arrangement gives it a highly stable, non-polar structure. At room temperature, cyclohexane is a clear, colorless liquid with a distinctive, sweet, yet pungent odor, often described as detergent-like. It is largely insoluble in water but miscible with many organic solvents like alcohols, ethers, and acetone. Due to its unique ring structure, cyclohexane exists primarily in two rapidly interconverting conformations: the "chair" and "boat" forms, with the chair form being significantly more stable. It is widely used as a solvent in chemical reactions, a raw material for the production of nylon (specifically in the synthesis of caprolactam and adipic acid), a paint and varnish remover, and an industrial cleaner. Its low toxicity compared to other organic solvents also makes it a preferred choice in certain applications.
