Chemical Properties of Isobutyl ether (CAS 628-55-7)

InChI

InChI=1S/C8H18O/c1-7(2)5-9-6-8(3)4/h7-8H,5-6H2,1-4H3

InChI Key

SZNYYWIUQFZLLT-UHFFFAOYSA-N

Formula

C8H18O

SMILES

CC(C)COCC(C)C

Molecular Weight¹

130.23

CAS

628-55-7

Other Names

• 1,1'-oxybis(2-methylpropane)
• 1,1'-oxybis[2-methylpropane]
• 1-isobutoxy-2-methylpropane
• 2,6-dimethyl-4-oxaheptane
• Diisobutyl ether
• Propane, 1,1'-oxybis*2-methyl-
• Propane, 1,1'-oxybis[2-methyl-
• bis(2-methylpropyl) ether

• C_p,gas : Ideal gas heat capacity (J/mol×K).
• η : Dynamic viscosity (Pa×s).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_fusH : Enthalpy of fusion at a given temperature (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• Δ_vapH : Enthalpy of vaporization at a given temperature (kJ/mol).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• P_c : Critical Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• I_np : Non-polar retention indices.
• I : Polar retention indices.
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ΔfG°	-93.40	kJ/mol	Joback Calculated Property
ΔfH°gas	-351.23	kJ/mol	Joback Calculated Property
ΔfusH°	11.33	kJ/mol	Phase E...
ΔvapH°	[40.85; 41.20]	kJ/mol
ΔvapH°	40.85	kJ/mol	NIST
ΔvapH°	41.20 ± 0.70	kJ/mol	NIST
log10WS	-1.78		Crippen Calculated Property
logPoct/wat	2.315		Crippen Calculated Property
McVol	129.450	ml/mol	McGowan Calculated Property
Pc	2532.82	kPa	Joback Calculated Property
Inp	[808.00; 811.00]
Inp	808.00		NIST
Inp	811.00		NIST
Inp	808.00		NIST
I	[969.00; 969.00]
I	969.00		NIST
I	969.00		NIST
Tboil	[395.50; 396.20]	K
Tboil	395.70	K	NIST
Tboil	396.20	K	NIST
Tboil	395.50 ± 0.50	K	NIST
Tc	575.40	K	Joback Calculated Property
Tfus	172.15	K	Joback Calculated Property
Vc	0.489	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[257.37; 331.51]	J/mol×K	[403.98; 575.40]
Cp,gas	257.37	J/mol×K	403.98	Joback Calculated Property
Cp,gas	270.82	J/mol×K	432.55	Joback Calculated Property
Cp,gas	283.82	J/mol×K	461.12	Joback Calculated Property
Cp,gas	296.39	J/mol×K	489.69	Joback Calculated Property
Cp,gas	308.52	J/mol×K	518.26	Joback Calculated Property
Cp,gas	320.23	J/mol×K	546.83	Joback Calculated Property
Cp,gas	331.51	J/mol×K	575.40	Joback Calculated Property
η	[0.0002043; 0.0136903]	Pa×s	[172.15; 403.98]
η	0.0136903	Pa×s	172.15	Joback Calculated Property
η	0.0035734	Pa×s	210.79	Joback Calculated Property
η	0.0014141	Pa×s	249.43	Joback Calculated Property
η	0.0007176	Pa×s	288.06	Joback Calculated Property
η	0.0004275	Pa×s	326.70	Joback Calculated Property
η	0.0002842	Pa×s	365.34	Joback Calculated Property
η	0.0002043	Pa×s	403.98	Joback Calculated Property
ΔfusH	11.33	kJ/mol	195.50	NIST
ΔvapH	[33.95; 38.90]	kJ/mol	[358.00; 396.20]
ΔvapH	38.90	kJ/mol	358.00	NIST
ΔvapH	33.95	kJ/mol	396.20	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.66]	kPa	[297.01; 419.36]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.54060e+01
Coefficient B			-3.71665e+03
Coefficient C			-5.11710e+01
Temperature range, min.			297.01
Temperature range, max.			419.36
Pvap	1.33	kPa	297.01	Calculated Property
Pvap	2.94	kPa	310.60	Calculated Property
Pvap	6.01	kPa	324.20	Calculated Property
Pvap	11.46	kPa	337.79	Calculated Property
Pvap	20.62	kPa	351.39	Calculated Property
Pvap	35.25	kPa	364.98	Calculated Property
Pvap	57.64	kPa	378.58	Calculated Property
Pvap	90.62	kPa	392.17	Calculated Property
Pvap	137.63	kPa	405.77	Calculated Property
Pvap	202.66	kPa	419.36	Calculated Property

Similar Compounds

Find more compounds similar to Isobutyl ether.

Sources

• Crippen Method
• Crippen Method
• Phase Equilibria and Thermodynamic Properties of Some Branched Alkyl Ethers
• Joback Method
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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