Material Safety Data Sheet

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS

Material safety data sheet

A Material Safety Data Sheet is a form with data regarding the properties of a particular substance....

) for this chemical from a reliable source and follow its directions.

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Structure and properties

Structure and properties
Index of refraction, nD	1.4262 at 20°C
Abbe number Abbe number In physics and optics, the Abbe number, also known as the V-number or constringence of a transparent material, is a measure of the material's dispersion in relation to the refractive index...	?
Dielectric constant Dielectric constant The relative permittivity of a material under given conditions reflects the extent to which it concentrates electrostatic lines of flux. In technical terms, it is the ratio of the amount of electrical energy stored in a material by an applied voltage, relative to that stored in a vacuum... , εr	2.023 ε0 at 20 °C
Bond strength Bond strength In chemistry, bond strength is measured between two atoms joined in a chemical bond. It is the degree to which each atom linked to another atom contributes to the valency of this other atom...	?
Bond length Bond length - Explanation :Bond length is related to bond order, when more electrons participate in bond formation the bond will get shorter. Bond length is also inversely related to bond strength and the bond dissociation energy, as a stronger bond will be shorter...	230 pm H–C
Bond angle	109.5° H–C–H 109.5°C–C–C 109.5° H–C–C
Magnetic susceptibility Magnetic susceptibility In electromagnetism, the magnetic susceptibility \chi_m is a dimensionless proportionality constant that indicates the degree of magnetization of a material in response to an applied magnetic field...	?
Surface tension Surface tension Surface tension is a property of the surface of a liquid that allows it to resist an external force. It is revealed, for example, in floating of some objects on the surface of water, even though they are denser than water, and in the ability of some insects to run on the water surface...	27 dyn/cm    at 10°C 25.3 dyn/cm at 20°C 15.7 dyn/cm at 80°C
Viscosity Viscosity Viscosity is a measure of the resistance of a fluid which is being deformed by either shear or tensile stress. In everyday terms , viscosity is "thickness" or "internal friction". Thus, water is "thin", having a lower viscosity, while honey is "thick", having a higher viscosity...	1.03 mPa·s at 17°C 0.93 mPa·s at 22°C 0.86 mPa·s at 27°C 0.75 mPa·s at 35°C

Thermodynamic properties

Phase behavior
Triple point Triple point In thermodynamics, the triple point of a substance is the temperature and pressure at which the three phases of that substance coexist in thermodynamic equilibrium...	279.7 K (6.55 °C), ? Pa
Critical point	554 K (281 °C), 4070 kPa
Std enthalpy change of fusion, ΔfusHo	2.68 kJ/mol crystal I → liquid
Std entropy change of fusion Standard entropy change of fusion The entropy of fusion is the increase in entropy when melting a substance. This is always positive since the degree of disorder increases in the transition from an organized crystalline solid to the disorganized structure of a liquid... , ΔfusSo	9.57 J/(mol·K) crystal I → liquid
Std enthalpy change of vaporization Standard enthalpy change of vaporization The enthalpy of vaporization, , also known as the heat of vaporization or heat of evaporation, is the energy required to transform a given quantity of a substance into a gas at a given pressure .It is often measured at the normal boiling point of a substance; although tabulated values are usually... , ΔvapHo	32 kJ/mol
Std entropy change of vaporization Standard entropy change of vaporization The entropy of vaporization is the increase in entropy when vaporizing a substance. This is always positive since the degree of disorder increases in the transition from an organized crystalline solid or a slightly less organized liquid to the extremely disorganized structure of a gas... , ΔvapSo	111.80 J/(mol·K)
Solid properties
Std enthalpy change of formation Standard enthalpy change of formation The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states... , ΔfHosolid	? kJ/mol
Standard molar entropy Standard molar entropy In chemistry, the standard molar entropy is the entropy content of one mole of substance, under standard conditions .... , Sosolid	? J/(mol K)
Heat capacity Heat capacity Heat capacity , or thermal capacity, is the measurable physical quantity that characterizes the amount of heat required to change a substance's temperature by a given amount... , cp	? J/(mol K)
Enthalpy of transition, ΔtrsHo	6.7 kJ/mol at –87.0°C crystal II → crystal I
Entropy of transition, ΔtrsSo	36 J/(mol·K) at –87.0°C crystal II → crystal I
Liquid properties
Std enthalpy change of formation Standard enthalpy change of formation The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states... , ΔfHoliquid	–156.4 kJ/mol
Standard molar entropy Standard molar entropy In chemistry, the standard molar entropy is the entropy content of one mole of substance, under standard conditions .... , Soliquid	204 J/(mol K)
Enthalpy of combustion, ΔcHo	–3930 kJ/mol
Heat capacity Heat capacity Heat capacity , or thermal capacity, is the measurable physical quantity that characterizes the amount of heat required to change a substance's temperature by a given amount... , cp	156 J/(mol K)
Gas properties
Std enthalpy change of formation Standard enthalpy change of formation The standard enthalpy of formation or standard heat of formation of a compound is the change of enthalpy that accompanies the formation of 1 mole of a substance in its standard state from its constituent elements in their standard states... , ΔfHogas	–123.1 kJ/mol
Standard molar entropy Standard molar entropy In chemistry, the standard molar entropy is the entropy content of one mole of substance, under standard conditions .... , Sogas	298.19 J/(mol K)
Heat capacity Heat capacity Heat capacity , or thermal capacity, is the measurable physical quantity that characterizes the amount of heat required to change a substance's temperature by a given amount... , cp	105.3 J/(mol K)
van der Waals' constants Van der Waals equation The van der Waals equation is an equation of state for a fluid composed of particles that have a non-zero volume and a pairwise attractive inter-particle force It was derived by Johannes Diderik van der Waals in 1873, who received the Nobel prize in 1910 for "his work on the equation of state for...	a = 2311 L2 kPa/mol2 b = 0.1424 liter per mole

Vapor pressure of liquid

P in mm Hg	1	10	40	100	400	760	1520	3800	7600	15200	30400	45600
T in °C	–45.3(s)	–15.9(s)	6.7	25.5	60.8	80.7	106.0	146.4	184.0	228.4	—	—

Table data obtained from CRC Handbook of Chemistry and Physics 44th ed. The "(s)" annotation indicates equilibrium temperature of vapor over solid. Otherwise value is equilibrium temperature of vapor over liquid.

Distillation data

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| bgcolor="#D0D0D0" align="center" colspan="3"| Vapor-liquid Equilibrium
for Cyclohexane/Ethanol

Ethanol

Ethanol, also called ethyl alcohol, pure alcohol, grain alcohol, or drinking alcohol, is a volatile, flammable, colorless liquid. It is a psychoactive drug and one of the oldest recreational drugs. Best known as the type of alcohol found in alcoholic beverages, it is also used in thermometers, as a...

P = 760 mm Hg
|-
! rowspan="2" | BP
Temp.
°C
! colspan="2" | % by mole ethanol
|-
! liquid !! vapor
|-
| 73.99 || 2.0 || 17.5
|-
| 69.08 || 3.0 || 30.2
|-
| 66.94 || 6.5 || 35.8
|-
| 66.08 || 8.1 || 36.3
|-
| 66.37 || 8.6 || 36.5
|-
| 65.59 || 12.5 || FAKE
|-
| 65.23 || 15.1 || 39.6
|-
| 65.12 || 20.6 || 40.8
|-
| 64.93 || 25.8 || 41.5
|-
| 64.87 || 28.3 || 41.8
|-
| 64.84 || 31.5 || 42.6
|-
| 64.78 || 36.6 || 43.0
|-
| 64.77 || 40.3 || 43.1
|-
| 64.77 || 43.1 || 43.1
|-
| 64.78 || 44.4 || 43.8
|-
| 64.81 || 50.0 || 44.3
|-
| 64.88 || 55.7 || 45.5
|-
| 65.01 || 61.3 || 46.0
|-
| 64.99 || 62.1 || 45.8
|-
| 65.25 || 67.8 || 47.5
|-
| 65.56 || 73.8 || 50.5
|-
| 66.03 || 76.3 || 49.6
|-
| 65.93 || 77.6 || 51.5
|-
| 66.40 || 78.1 || 49.8
|-
| 66.90 || 80.9 || 54.5
|-
| 67.26 || 83.3 || 57.8
|-
| 67.98 || 85.3 || 59.5
|-
| 68.86 || 88.1 || 62.3
|-
| 69.44 || 89.8 || 65.3
|-
| 70.11 || 90.9 || 67.8
|-
| 71.42 || 92.9 || 72.5
|-
| 72.48 || 95.1 || 77.8
|-
|}
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{|
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{| border="1" cellspacing="0" cellpadding="6" style="margin: 0 0 0 0.5em; background: ; border-collapse: collapse; border-color: ;"
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| bgcolor="#D0D0D0" align="center" colspan="3"| Vapor-liquid Equilibrium
for Cyclohexane/Benzene

Benzene

Benzene is an organic chemical compound. It is composed of 6 carbon atoms in a ring, with 1 hydrogen atom attached to each carbon atom, with the molecular formula C6H6....

P = 760 mm Hg
|-
! rowspan="2" | BP
Temp.
°C
! colspan="2" | % by mole benzene
|-
! liquid !! vapor
|-
| 79.5 || 10.1 || 13.1
|-
| 78.9 || 17.1 || 21.1
|-
| 78.4 || 25.6 || 29.3
|-
| 77.8 || 34.3 || 37.6
|-
| 77.5 || 42.8 || 44.5
|-
| 77.4 || 52.5 || 52.9
|-
| 77.4 || 57.1 || 56.4
|-
| 77.6 || 66.5 || 64.5
|-
| 77.9 || 75.9 || 72.8
|-
| 78.2 || 81.0 || 77.7
|-
| 78.6 || 86.3 || 83.4
|-
| 79.3 || 94.5 || 92.6
|-
|}
|-
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{| border="1" cellspacing="0" cellpadding="6" style="margin: 0 0 0 0.5em; background: ; border-collapse: collapse; border-color: ;"
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| bgcolor="#D0D0D0" align="center" colspan="3"| Vapor-liquid Equilibrium
for Cyclohexane/n-Hexane

Hexane

Hexane is a hydrocarbon with the chemical formula C6H14; that is, an alkane with six carbon atoms.The term may refer to any of four other structural isomers with that formula, or to a mixture of them. In the IUPAC nomenclature, however, hexane is the unbranched isomer ; the other four structures...

P = 101.0 kPa
|-
! rowspan="2" | BP
Temp.
°C
! colspan="2" | % by mole n-hexane
|-
! liquid !! vapor
|-
| 80.60 || 0.00 || 0.00
|-
| 78.87 || 7.9 || 12.12
|-
| 78.15 || 12.50 || 18.30
|-
| 77.36 || 18.06 || 25.19
|-
| 76.85 || 21.65 || 29.30
|-
| 76.29 || 25.92 || 34.13
|-
| 75.85 || 29.39 || 37.92
|-
| 75.29 || 33.52 || 42.38
|-
| 75.29 || 37.86 || 46.93
|-
| 74.23 || 41.63 || 50.71
|-
| 73.58 || 46.72 || 55.63
|-
| 73.11 || 50.66 || 59.21
|-
| 72.26 || 59.26 || 67.28
|-
| 71.11 || 69.43 || 76.07
|-
| 70.45 || 76.18 || 81.40
|-
| 69.05 || 90.70 || 93.13
|-
| 68.64 || 100.00 || 100.00
|-
|}
|}
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{| border="1" cellspacing="0" cellpadding="6" style="margin: 0 0 0 0.5em; background: ; border-collapse: collapse; border-color: ;"
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| bgcolor="#D0D0D0" align="center" colspan="3"| Vapor-liquid Equilibrium
for Cyclohexane/Acetic acid

Acetic acid

Acetic acid is an organic compound with the chemical formula CH3CO2H . It is a colourless liquid that when undiluted is also called glacial acetic acid. Acetic acid is the main component of vinegar , and has a distinctive sour taste and pungent smell...

P = 101.325 kPa
|-
! rowspan="2" | BP
Temp.
°C
! colspan="2" | % by mole acetic acid
|-
! liquid !! vapor
|-
| 79.60 || 2.75 || 6.31
|-
| 79.32 || 5.20 || 9.85
|-
| 78.84 || 101.2 || 15.01
|-
| 78.53 || 14.06 || 18.04
|-
| 78.50 || 21.39 || 21.98
|-
| 78.81 || 35.30 || 26.20
|-
| 79.13 || 49.30 || 29.00
|-
| 79.33 || 56.10 || 30.00
|-
| 81.44 || 74.60 || 33.50
|-
| 81.66 || 75.80 || 34.20
|-
| 85.18 || 86.70 || 40.00
|-
| 90.52 || 92.50 || 49.20
|-
| 91.90 || 93.20 || 51.70
|-
| 95.52 || 94.57 || 57.82
|-
| 98.94 || 95.96 || 63.33
|-
| 105.75 || 97.84 || 75.69
|-
| 113.16 || 99.33 || 90.67
|-
|}
|    
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{| border="1" cellspacing="0" cellpadding="6" style="margin: 0 0 0 0.5em; background: ; border-collapse: collapse; border-color: ;"
|-
| bgcolor="#D0D0D0" align="center" colspan="3"| Vapor-liquid Equilibrium
for Cyclohexane/Isopropanol
P = 760 mm Hg
|-
! rowspan="2" | BP
Temp.
°C
! colspan="2" | % by mole cyclohexane
|-
! liquid !! vapor
|-
| 78.71 || 2.7 || 11.2
|-
| 76.91 || 7.0 || 21.8
|-
| 74.96 || 11.6 || 28.3
|-
| 74.80 || 12.0 || 27.6
|-
| 72.28 || 19.1 || 37.1
|-
| 70.19 || 30.6 || 48.9
|-
| 69.35 || 47.3 || 55.5

|-
| 69.20 || 51.6 || 57.0
|-
| 69.14 || 51.6 || 57.2
|-
| 69.11 || 51.8 || 56.8
|-
| 68.80 || 52.8 || 58.3
|-
| 69.01 || 53.8 || 58.2
|-
| 69.08 || 57.1 || 58.2
|-
| 69.10 || 70.8 || 62.7
|-
| 69.42 || 74.2 || 64.9
|-
| 69.45 || 78.4 || 66.0
|-
| 69.66 || 80.7 || 67.3
|-
| 70.11 || 86.2 || 69.7
|-
| 70.31 || 87.3 || 70.9
|-
| 71.50 || 92.1 || 77.3
|-
| 74.74 || 97.8 || 85.0

|-
| 76.73 || 99.5 || 89.3
|-
|}
|}

Spectral data

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! | UV-Vis
|-
| λ_max
| ? nm

Nanometre

A nanometre is a unit of length in the metric system, equal to one billionth of a metre. The name combines the SI prefix nano- with the parent unit name metre .The nanometre is often used to express dimensions on the atomic scale: the diameter...

|-
| Extinction coefficient

Molar absorptivity

The molar absorption coefficient, molar extinction coefficient, or molar absorptivity, is a measurement of how strongly a chemical species absorbs light at a given wavelength...

, ε
| ?
|-
! | IR

Infrared

Infrared light is electromagnetic radiation with a wavelength longer than that of visible light, measured from the nominal edge of visible red light at 0.74 micrometres , and extending conventionally to 300 µm...

|-
| Major absorption bands
| ? cm⁻¹
|-
! | NMR

NMR spectroscopy

Nuclear magnetic resonance spectroscopy, most commonly known as NMR spectroscopy, is a research technique that exploits the magnetic properties of certain atomic nuclei to determine physical and chemical properties of atoms or the molecules in which they are contained...

|-
| Proton NMR

Proton NMR

Proton NMR is the application of nuclear magnetic resonance in NMR spectroscopy with respect to hydrogen-1 nuclei within the molecules of a substance, in order to determine the structure of its molecules. In samples where natural hydrogen is used, practically all of the hydrogen consists of the...

 
|  
|-
| Carbon-13 NMR

Carbon-13 NMR

Carbon-13 NMR is the application of nuclear magnetic resonance spectroscopy to carbon. It is analogous to proton NMR and allows the identification of carbon atoms in an organic molecule just as proton NMR identifies hydrogen atoms...

 
|  
|-
| Other NMR data
|  
|-
! | MS

Mass spectrometry

Mass spectrometry is an analytical technique that measures the mass-to-charge ratio of charged particles.It is used for determining masses of particles, for determining the elemental composition of a sample or molecule, and for elucidating the chemical structures of molecules, such as peptides and...

|-
| Masses of
main fragments
|  
|-
|}