Freezing Point Of Ethyl Alcohol

Ethanol (Ethyl Alcohol), C₂H₅OH, is a volatile,flammable, colorless liquid with a slight feature odor. It is produced via petrochemical processes or naturally by the fermentation of sugars by yeasts.

Ethanol is nigh commonly consumed as a popularrecreational drug. It is a psychoactive substance and is the principal type of booze found in alcoholic drinks. It besides has medical applications every bit an clarified and disinfectant. The compound is widely used as a chemical solvent, either for scientific chemical testing or in synthesis of other organic compounds. Ethanol is likewise used as a make clean-burning fuel source.

The phase diagram of ethanol is shown beneath the table.

Chemical, physical and thermal properties of ethanol:
Values are given for liquid at 25^oC /77^oF / 298 Yard and 1 bara, if not other phase, temperature or pressure given.

For full tabular array with Purple Units - rotate the screen!

Belongings	Value	Unit of measurement	Value	Unit	Value	Unit	Value	Unit
Acidity (pKa₁)	15.ix
Autoignition temperature	636	K	363	°C	685	°F
Boiling Indicate	351.39	K	78.2	°C	172.8	°F
Critical density	5.91	mol/dmⁱⁱⁱ	272	kg/m³	0.528	slug/ft³	17.0	lb/ft³
Disquisitional Force per unit area	6.25	MPa=MN/m2	62.five	bara	61.7	atm	906	psia=lb_f/in^two
Critical temperature	513.9	K	240.viii	°C	465.4	°F
Critical Volume	169	cm³/mol	0.00367	one thousand³/kg	1.89	ftⁱⁱⁱ/slug	0.0588	ft³/lb
Density (gas) at 0.08 bar	iii.15	mol/m³	0.145	kg/m³	0.00028	slug/ft^three	0.0091	lb/ft³
Density (liquid)	17046	mol/mⁱⁱⁱ	785.3	kg/gⁱⁱⁱ	1.524	slug/ftⁱⁱⁱ	49.02	lb/ft³
Flammable (gas and liquid)	yes
Wink signal	286	1000	13	°C	55	°F
Gas abiding (individual) - R	180.5	J/kg K	0.05013	Wh/(kg Yard)	1079	[ft lbf/slug °R]	33.54	[ft lbf/lb °R]
Gibbs complimentary free energy of formation (gas)	-168	kJ/mol	-3647	kJ/kg	-1568	Btu/lb
Specific oestrus capacity, Cp (isobaric) (gas)	74	J/mol Chiliad	1.60	kJ/kg G	0.383	Btu/lb°F or cal/1000 M
Specific heat capacity, Cp (liquid)	118	J/mol One thousand	2.57	kJ/kg Yard	0.614	Btu/lb°F or cal/g Yard
Specific heat capacity, Cv (isochoric) (gas)	65	J/mol K	1.42	kJ/kg G	0.339	Btu/lb°F or cal/g K
Specific rut capacity, Cv (liquid)	100	J/mol K	ii.18	kJ/kg One thousand	0.520	Btu/lb°F or cal/g K
Heat (enthalpy) of combustion (gas)	1336.eight	kJ/mol	29017	kJ/kg	12.5	Btu/lb
Heat (enthalpy) of formation (gas)	-234	kJ/mol	-5079	kJ/kg	-2184	Btu/lb
Heat (enthalpy) of fusion at -173°F/-114°C	four.9	kJ/mol	106	kJ/kg	45.73	Btu/lb
Heat (enthalpy) of evaporation	42.32	kJ/mol	919	kJ/kg	394.94	Btu/lb
Ionization potential	10.47	eV
log K_OW (Octanol/Water Partition Coefficient)	-0.31
Melting point	159.01	Thou	-114.1	°C	-173.5	°F
Molecular Weight	46.069	g/mol			0.10156	lb/mol
Solubility in h2o	1000	mg/ml
Sound velocity in liquid	1139	m/south			3736	ft/due south	2551	mi/h
Sound velocity in gas, at 0.08 bara	246	yard/s			807	ft/s	551	mi/h
Specific Gravity (gas) (relativ to air)	1.59
Specific Gravity (liquid) (relativ to water)	0.79
Specific Estrus Ratio (gas) - Cp/Cv	1.13
Specific Estrus Ratio (liquid) - Cp/Cv	1.18
Specific Volume (gas), at 0.08 bar	0.318	chiliad³/mol	6.90	thou³/kg	3554	ft³/slug	110	ft³/lb
Specific Volume, (liquid)	0.0000587	m³/mol	0.00127	g³/kg	0.656	ft³/slug	0.0204	ft^three/lb
Standard molar entropy, South° (gas)	283	J/mol K	vi.14	kJ/kg Chiliad	1.47	Btu/lb °F
Standard molar entropy, S° (liquid)	160	J/mol One thousand	3.47	kJ/kg K	0.83	Btu/lb °F
Surface tension	21.97	dynes/cm	0.02197	Due north/m
Thermal Conductivity	0.167	Due west/m 1000	0.0965	Btu/hour ft °F
Triple point pressure	four.3x10^-x	MPa=MN/thousand²	iv.3x10^-9	bara	4.24x10^-9	atm	6.24x10^-8	psia=lb_f/in²
Triple bespeak temperature	150.00	K	-123.15	°C	-189.67	°F
Vapor (saturation) force per unit area	0.008	MPa=MN/mⁱⁱ	60.0	mm Hg	0.0790	atm	one.16	psi=lb_f/in^two
Viscosity, dynamic (accented)	i.074	cP	721.7	[lb_k /ft due south*x^-6]	22.43	[lb_f south/ft^two *10^-vi]
Viscosity, kinematic	ane.36	cSt	fourteen.six	[ft2/south*10^-6]

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Follow the links below to get values for the listed backdrop of ethanol at varying pressure and temperature:

Density and specific weight
Dynamic and kinematic viscosity
Specific Heat (Heat Capacity), C_p and C_five

See also more near atmospheric pressure, and STP - Standard Temperature and Pressure & NTP - Normal Temperature and Pressure,
besides as Thermophysical properties of: Acetone, Acetylene, Air, Ammonia, Argon, Benzene, Butane, Carbon dioxide, Carbon monoxide, Ethane, Ethylene, Helium, Hydrogen, Hydrogen sulfide, Methyl hydride, Methanol, Nitrogen, Oxygen, Pentane, Propane, Toluene, H2o and Heavy water, D_twoO.

Ethanol is a liquid at standard atmospheric condition. However, at depression temperature and/or very high pressures it becomes a solid.

The phase diagram for ethanol shows the phase behavior with changes in temperature and pressure. The bend between the disquisitional point and the triple point shows the ethanol humid betoken with changes in pressure. Information technology as well shows the saturation force per unit area with changes in temperature.

Ethanol phase diagram C

At the critical betoken there is no alter of state when pressure is increased or if heat is added.

The triple signal of a substance is the temperature and pressure at which the iii phases (gas, liquid, and solid) of that substance coexist in thermodynamic equilibrium.