Chemical Properties of Piperidine, 2,2,6,6-tetramethyl- (CAS 768-66-1)

InChI

InChI=1S/C9H19N/c1-8(2)6-5-7-9(3,4)10-8/h10H,5-7H2,1-4H3

InChI Key

RKMGAJGJIURJSJ-UHFFFAOYSA-N

Formula

C9H19N

SMILES

CC1(C)CCCC(C)(C)N1

Molecular Weight¹

141.25

CAS

768-66-1

Other Names

• 2,2,6,6-Tetramethylpiperidine
• Norpempidine

• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• Δ_cH°_liquid : Standard liquid enthalpy of combustion (kJ/mol).
• 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_fH°_liquid : Liquid phase 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).
• Δ_vapH : Enthalpy of vaporization at a given temperature (kJ/mol).
• IE : Ionization energy (eV).
• 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
PAff	987.00	kJ/mol	NIST
BasG	953.90	kJ/mol	NIST
ΔcH°liquid	-6050.10 ± 1.50	kJ/mol	NIST
ΔfG°	118.37	kJ/mol	Joback Calculated Property
ΔfH°gas	-159.90 ± 2.80	kJ/mol	NIST
ΔfH°liquid	-206.90 ± 2.00	kJ/mol	NIST
ΔfusH°	8.97	kJ/mol	Joback Calculated Property
ΔvapH°	[47.00; 47.00]	kJ/mol
ΔvapH°	47.00 ± 2.00	kJ/mol	NIST
ΔvapH°	47.00	kJ/mol	NIST
IE	[7.39; 8.14]	eV
IE	7.59 ± 0.05	eV	NIST
IE	7.39	eV	NIST
IE	8.14	eV	NIST
log10WS	-2.90		Crippen Calculated Property
logPoct/wat	2.317		Crippen Calculated Property
McVol	136.790	ml/mol	McGowan Calculated Property
Pc	3103.64	kPa	Joback Calculated Property
Inp	[947.00; 947.00]
Inp	947.00		NIST
Inp	947.00		NIST
Tboil	[425.20; 429.20]	K
Tboil	425.20	K	NIST
Tboil	429.20	K	NIST
Tc	693.71	K	Joback Calculated Property
Tfus	347.16	K	Joback Calculated Property
Vc	0.504	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[304.28; 403.67]	J/mol×K	[469.23; 693.71]
Cp,gas	304.28	J/mol×K	469.23	Joback Calculated Property
Cp,gas	323.83	J/mol×K	506.64	Joback Calculated Property
Cp,gas	341.92	J/mol×K	544.06	Joback Calculated Property
Cp,gas	358.75	J/mol×K	581.47	Joback Calculated Property
Cp,gas	374.51	J/mol×K	618.88	Joback Calculated Property
Cp,gas	389.42	J/mol×K	656.30	Joback Calculated Property
Cp,gas	403.67	J/mol×K	693.71	Joback Calculated Property
ΔvapH	44.50 ± 0.50	kJ/mol	300.50	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[0.55; 202.67]	kPa	[301.15; 452.05]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.47292e+01
Coefficient B			-3.68789e+03
Coefficient C			-6.04540e+01
Temperature range, min.			301.15
Temperature range, max.			452.05
Pvap	0.55	kPa	301.15	Calculated Property
Pvap	1.50	kPa	317.92	Calculated Property
Pvap	3.60	kPa	334.68	Calculated Property
Pvap	7.81	kPa	351.45	Calculated Property
Pvap	15.58	kPa	368.22	Calculated Property
Pvap	28.94	kPa	384.98	Calculated Property
Pvap	50.58	kPa	401.75	Calculated Property
Pvap	83.90	kPa	418.52	Calculated Property
Pvap	132.99	kPa	435.28	Calculated Property
Pvap	202.67	kPa	452.05	Calculated Property

Similar Compounds

Find more compounds similar to Piperidine, 2,2,6,6-tetramethyl-.

Sources

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

Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more. Take the time to validate and double check the source of the data.