Chemical Properties of Cyclopentane, 1,1,3,3-tetramethyl- (CAS 50876-33-0)

InChI

InChI=1S/C9H18/c1-8(2)5-6-9(3,4)7-8/h5-7H2,1-4H3

InChI Key

YWYCGTZNHWYQBD-UHFFFAOYSA-N

Formula

C9H18

SMILES

CC1(C)CCC(C)(C)C1

Molecular Weight¹

126.24

CAS

50876-33-0

Other Names

• 1,1,3,3-Tetramethylcyclopentane

• C_p,gas : Ideal gas heat capacity (J/mol×K).
• 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_vapH° : Enthalpy of vaporization at standard conditions (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.
• 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°	42.76	kJ/mol	Joback Calculated Property
ΔfH°gas	-158.47	kJ/mol	Joback Calculated Property
ΔfusH°	1.48	kJ/mol	Joback Calculated Property
ΔvapH°	33.27	kJ/mol	Joback Calculated Property
log10WS	-3.00		Crippen Calculated Property
logPoct/wat	3.223		Crippen Calculated Property
McVol	126.810	ml/mol	McGowan Calculated Property
Pc	2937.70	kPa	Joback Calculated Property
Inp	[765.00; 776.90]
Inp	772.80		NIST
Inp	776.90		NIST
Inp	765.00		NIST
Inp	770.00		NIST
Inp	765.00		NIST
Inp	770.00		NIST
Tboil	[391.11; 391.19]	K
Tboil	391.19 ± 0.20	K	NIST
Tboil	391.11 ± 0.30	K	NIST
Tc	624.78	K	Joback Calculated Property
Tfus	[184.74; 184.90]	K
Tfus	184.74 ± 0.30	K	NIST
Tfus	184.86 ± 0.30	K	NIST
Tfus	184.90 ± 1.00	K	NIST
Tfus	184.86 ± 0.30	K	NIST
Vc	0.475	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[257.55; 353.03]	J/mol×K	[416.41; 624.78]
Cp,gas	257.55	J/mol×K	416.41	Joback Calculated Property
Cp,gas	276.80	J/mol×K	451.14	Joback Calculated Property
Cp,gas	294.48	J/mol×K	485.87	Joback Calculated Property
Cp,gas	310.77	J/mol×K	520.59	Joback Calculated Property
Cp,gas	325.84	J/mol×K	555.32	Joback Calculated Property
Cp,gas	339.87	J/mol×K	590.05	Joback Calculated Property
Cp,gas	353.03	J/mol×K	624.78	Joback Calculated Property

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.66]	kPa	[281.95; 462.49]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.18072e+01
Coefficient B			-2.68899e+03
Coefficient C			-4.85240e+01
Temperature range, min.			281.95
Temperature range, max.			462.49
Pvap	1.33	kPa	281.95	Calculated Property
Pvap	3.32	kPa	302.01	Calculated Property
Pvap	7.22	kPa	322.07	Calculated Property
Pvap	14.14	kPa	342.13	Calculated Property
Pvap	25.39	kPa	362.19	Calculated Property
Pvap	42.51	kPa	382.25	Calculated Property
Pvap	67.13	kPa	402.31	Calculated Property
Pvap	100.93	kPa	422.37	Calculated Property
Pvap	145.58	kPa	442.43	Calculated Property
Pvap	202.66	kPa	462.49	Calculated Property

Similar Compounds

Find more compounds similar to Cyclopentane, 1,1,3,3-tetramethyl-.

Sources

• Crippen Method
• Crippen Method
• Joback Method
• KDB
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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