Class: `Cyclohexane`

Description

The Cyclohexane class represents the properties and constants for Cyclohexane (C₆H₁₂).
It provides physical and thermodynamic properties required in process engineering simulations and calculations.
All constants are from Perry's Chemical Engineers' Handbook, 8th ed., Section 2 (compound no. 65). The liquid correlations start at the melting point, 279.69 K (6.5 °C).

Properties

name (string): Cyclohexane
formula (string): C₆H₁₂
molecular_weight (float): 84.159 g/mol

Class Reference

class Cyclohexane()

Parameters:
temperature: Temperature, default = Temperature(25,"C")
pressure: Pressure, default = Pressure(1,"atm")
density: Density, default = None
specific_heat: SpecificHeat, default = None
viscosity: Viscosity, default = None
thermal_conductivity: ThermalConductivity, default = None
vapor_pressure: Pressure, default = None
enthalpy: HeatOfVaporization, default = None

Methods

The properties of the Cyclohexane class are calculated using the following methods, inherited from the base Component class.

phase(): Detects the phase of the substance ("liquid" or "gas") by comparing the system pressure and vapor pressure. (At standard conditions, cyclohexane is a liquid; it boils at 80.7 °C at 1 atm.)
density():
Liquid Phase: DIPPR Eq. 105 (Perry's Table 2-32)
Gas Phase: Uses the Ideal Gas Law
specific_heat():
Liquid Phase: Polynomial function of temperature (Perry's Table 2-153)
Gas Phase: Ideal-gas heat capacity (Cp), DIPPR Eq. 107 (Perry's Table 2-156)
viscosity():
Liquid Phase: DIPPR Eq. 101 (Perry's Table 2-313)
Gas Phase: Uses Sutherland’s Law
thermal_conductivity():
Liquid Phase: Polynomial function of temperature (Perry's Table 2-315)
Gas Phase: Vapor thermal conductivity (k), DIPPR Eq. 102 (Perry's Table 2-314)
vapor_pressure(): DIPPR Eq. 101 (Perry's Table 2-8)
enthalpy(): Enthalpy of vaporization (ΔHvap), DIPPR Eq. 106 (Perry's Table 2-150)

Examples

from processpi.components import Cyclohexane
from processpi.units import *

c6h12 = Cyclohexane(temperature=Temperature(25, "C"))
print(c6h12.density().to("kg/m3"))
print(c6h12.viscosity().to("Pa·s"))
print(c6h12.specific_heat().to("J/kgK"))
print(c6h12.thermal_conductivity().to("W/mK"))
print(c6h12.vapor_pressure().to("Pa"))
print(c6h12.enthalpy().to("J/kg"))

Class: Cyclohexane