Methyl Isobutyl Ketone ((CH 3 ) 2 CHCH 2 COCH 3 ; MIBK; MIK; Hexone)

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Methyl Isobutyl Ketone ((CH₃)₂CHCH₂COCH₃; MIBK; MIK; Hexone)
Categories:	Fluid; Solvent
Key Words:	4-methyl-2-pentanone; 4-methylpentan-2-one; hexone; isopropylacetone; MIK; isobutylmethyl ketone; MIBK; isohexanone
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Physical Properties	Original Value	Comments

Density	0.7978 g/cc @Temperature 20.0 °C
Viscosity	0.545 cP @Temperature 25.0 °C
	0.613 cP @Temperature 20.0 °C	Dynamic Viscosity
Molecular Weight	100.16 g/mol
Vapor Pressure	0.09869 atm @Temperature 51.5 °C
	14.961 torr @Temperature 20.0 °C
Surface Tension	23.29 dynes/cm @Temperature 20.0 °C

Chemical Properties	Original Value	Comments
Critical Pressure	32.2724 atm
Critical Temperature	298 °C
Critical Density	0.268 g/cc
Critical Molar Volume	374 cm³/mol

Electrical Properties	Original Value	Comments
Dielectric Constant	13.11 @Temperature 20.0 °C

Thermal Properties	Original Value	Comments
Heat of Vaporization	344.3 J/g	Enthalpy of vaporization at normal boiling temperature
Specific Heat Capacity	2.154 J/g-°C
	1.449 J/g-°C @Temperature 25.0 °C	Vapor
Thermal Conductivity	0.1428 W/m-K @Temperature 20.0 °C
Melting Point	-84.7 °C	At atmospheric pressure (760 torr)
Boiling Point	35.0 - 40.0 °C	at 10 torr
	116.8 °C @Pressure 0.101 MPa

Optical Properties	Original Value	Comments
Refractive Index	1.3962 @Temperature 20.0 °C, Wavelength 589.3 nm	Na D line

Descriptive Properties
Antoine's Vapor Pressure A Parameter	15.7165
Antoine's Vapor Pressure B Parameter	2893.66
Antoine's Vapor Pressure C Parameter	-70.75
Antoine's Vapor Pressure Formula	ln π_p = A - B/(T+C)	P in mmHg and T in K
CAS registry number (CARN)	108-10-1
Chemical Formula	C₆H₁₂O
Critical Compressibility (Zc)	0.26
Dipole moment (p/C.m)	9.34E-28
Dynamic Viscosity Formula	log₁₀ η=A(1/T-1/B)
Dynamic Viscosity Parameter A	473.65
Dynamic Viscosity Parameter B	259.03
Henry's Law Constant (atm m³/mol)	0.000138
Molar Heat Capacity (298K)	145.128 J/mol-K
Molar Heat Capacity of Vapor a Parameter	3.8911
Molar Heat Capacity of Vapor b Parameter	0.5653
Molar Heat Capacity of Vapor c Parameter	-0.0003316
Molar Heat Capacity of Vapor d Parameter	8.226E-89
Molar Heat Capacity of Vapor Formula	C_p = a + bT + cT² + dT³	C_p in J/mol-K
UN Number	1245

References for this datasheet.

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VORG032 / 74543

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