Chemical Properties of neon (CAS 7440-01-9)

InChI

InChI=1S/Ne

InChI Key

GKAOGPIIYCISHV-UHFFFAOYSA-N

Formula

Ne

SMILES

[Ne]

Molecular Weight¹

20.18

CAS

7440-01-9

• ω : Acentric Factor.
• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• C_p,liquid : Liquid phase heat capacity (J/mol×K).
• μ : Dipole Moment (debye).
• 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 a given temperature (kJ/mol).
• Δ_vapH : Enthalpy of vaporization at a given temperature (kJ/mol).
• IE : Ionization energy (eV).
• P_c : Critical Pressure (kPa).
• P_triple : Triple Point Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• ρ_c : Critical density (kg/m³).
• ρ_g : Gas Density (kg/m³).
• ρ_l : Liquid Density (kg/m³).
• S°_{gas,1 bar} : Molar entropy at standard conditions (1 bar) (J/mol×K).
• γ : Surface Tension (N/m).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• λ_gas : Gas thermal conductivity (W/m×K).
• λ_liquid : Liquid thermal conductivity (W/m×K).
• T_fus : Normal melting (fusion) point (K).
• T_triple : Triple Point Temperature (K).
• U_Qi : UNIQUAC Qi Parameter.
• U_Ri : UNIQUAC Ri Parameter.
• V_c : Critical Volume (m³/kmol).
• Z_c : Critical Compressibility.
• Z_ra : Rackett Parameter.
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ω	[-0.0414; -0.0290]
ω	-0.0414		PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
ω	-0.0396		ChemSep v8.3 pure component data Compiled value
ω	-0.0290		KDB
PAff	198.80	kJ/mol	NIST
BasG	174.40	kJ/mol	NIST
μ	[0.00; 0.00]	debye
μ	0.00	debye	ChemSep v8.3 pure component data Compiled value
μ	0.00	debye	KDB
ΔfG°	0.00	kJ/mol	ChemSep v8.3 pure component data Compiled value
ΔfH°gas	[0.00; 0.00]	kJ/mol
ΔfH°gas	0.00	kJ/mol	Active Thermochemical Tables 1.112, gas-phase enthalpies of formation Compiled value
ΔfH°gas	0.00	kJ/mol	ChemSep v8.3 pure component data Compiled value
IE	[21.50; 22.00]	eV
IE	21.56 ± 0.00	eV	NIST
IE	21.56	eV	NIST
IE	21.50	eV	NIST
IE	21.57	eV	NIST
IE	Outlier 22.00	eV	NIST
IE	21.59	eV	NIST
IE	21.56 ± 0.00	eV	NIST
IE	21.56	eV	NIST
Pc	[2653.00; 2760.00]	kPa
Pc	2756.04	kPa	Mathews (1972), critical constants of inorganic substances Compiled value
Pc	2756.04	kPa	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Pc	2653.00	kPa	ChemSep v8.3 pure component data Compiled value
Pc	2679.00	kPa	Air Liquide Gas Encyclopedia
Pc	2760.00	kPa	KDB
Ptriple	[43.30; 50.00]	kPa
Ptriple	43.36 ± 0.02	kPa	Staveley, Lobo and Calado (1981), triple points Compiled value
Ptriple	43.30	kPa	ChemSep v8.3 pure component data Compiled value
Ptriple	43.30	kPa	Air Liquide Gas Encyclopedia
Ptriple	Outlier 50.00	kPa	KDB
Ptriple	43.37 ± 0.00	kPa	NIST
Ptriple	43.30 ± 0.27	kPa	NIST
ρc	481.91	kg/m3	Air Liquide Gas Encyclopedia
S°gas,1 bar	146.33 ± 0.00	J/mol×K	NIST
Tboil	[27.07; 27.10]	K
Tboil	27.09	K	ChemSep v8.3 pure component data Compiled value
Tboil	27.10	K	Air Liquide Gas Encyclopedia
Tboil	27.07	K	KDB
Tc	[44.40; 44.49]	K
Tc	44.40	K	Mathews (1972), critical constants of inorganic substances Compiled value
Tc	44.40	K	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Tc	44.40	K	ChemSep v8.3 pure component data Compiled value
Tc	44.49	K	Air Liquide Gas Encyclopedia
Tc	44.40	K	KDB
Tfus	[24.55; 24.56]	K
Tfus	24.55	K	ChemSep v8.3 pure component data Compiled value
Tfus	24.55	K	Air Liquide Gas Encyclopedia
Tfus	24.56	K	KDB
Ttriple	[24.54; 24.56]	K
Ttriple	Outlier 24.54	K	Further results on the triple point temperature of pure 20Ne and 22Ne
Ttriple	24.55	K	Staveley, Lobo and Calado (1981), triple points Compiled value
Ttriple	24.56	K	ChemSep v8.3 pure component data Compiled value
Ttriple	24.56	K	Air Liquide Gas Encyclopedia
Ttriple	24.56	K	KDB
Ttriple	24.56 ± 0.00	K	NIST
Ttriple	24.56 ± 0.05	K	NIST
UQi	0.78		ChemSep v8.3 pure component data Compiled value
URi	0.68		ChemSep v8.3 pure component data Compiled value
Vc	[0.042; 0.042]	m3/kmol
Vc	0.042	m3/kmol	Mathews (1972), critical constants of inorganic substances Compiled value
Vc	0.042	m3/kmol	PSRK revision IV (2005), critical constants and acentric factors of 1000 components Compiled value
Vc	0.042	m3/kmol	ChemSep v8.3 pure component data Compiled value
Vc	0.042	m3/kmol	KDB
Zc	[0.3000000; 0.3140070]
Zc	0.3110000		Mathews (1972), critical constants of inorganic substances Compiled value
Zc	0.3000000		ChemSep v8.3 pure component data Compiled value
Zc	0.3140070		KDB
Zra	0.31		KDB

Cheméo can also estimate Enthalpy of vaporization at standard conditions, Log10 of Water solubility in mol/l for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
ΔfusH	0.33	kJ/mol	24.55	Air Liquide Gas Encyclopedia
ΔvapH	1.73	kJ/mol	27.10	Air Liquide Gas Encyclopedia
ρg	[0.85; 9.57]	kg/m3	[27.10; 288.15]
ρg	9.57	kg/m3	27.10	Air Liquide Gas Encyclopedia
ρg	0.85	kg/m3	288.15	Air Liquide Gas Encyclopedia
ρl	[1204.00; 1207.00]	kg/m3	[27.00; 27.10]
ρl	1204.00	kg/m3	27.00	KDB
ρl	1207.00	kg/m3	27.10	Air Liquide Gas Encyclopedia

Correlations

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[20.79; 20.79]	J/mol×K	[100.00; 1500.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is Cp,gas in J/mol×K, T in K
Coefficient A			2.07860e+01
Coefficient B			-1.72850e+03
Coefficient C			-2.87628e+01
Coefficient D			2.05120e-03
Coefficient E			2.11390e-07
Temperature range, min.			100.00
Temperature range, max.			1500.00
Cp,gas	20.79	J/mol×K	100.00	Calculated Property
Cp,gas	20.79	J/mol×K	255.56	Calculated Property
Cp,gas	20.79	J/mol×K	411.11	Calculated Property
Cp,gas	20.79	J/mol×K	566.67	Calculated Property
Cp,gas	20.79	J/mol×K	722.22	Calculated Property
Cp,gas	20.79	J/mol×K	877.78	Calculated Property
Cp,gas	20.79	J/mol×K	1033.33	Calculated Property
Cp,gas	20.79	J/mol×K	1188.89	Calculated Property
Cp,gas	20.79	J/mol×K	1344.44	Calculated Property
Cp,gas	20.79	J/mol×K	1500.00	Calculated Property
Cp,gas	[20.79; 20.79]	J/mol×K	[298.00; 6000.00]	NIST
Equation			Y = A + B·t + C·t² + D·t³ + E/t², t = T/1000 Y is Cp,gas in J/mol×K, T in K
Coefficient A			2.07860e+01
Coefficient B			4.85064e-10
Coefficient C			-1.58292e-10
Coefficient D			1.52510e-11
Coefficient E			3.19635e-11
Reference			Chase, 1998
Comment			F=-6.197341, G=171.4821, H=0.000000; Data last reviewed in March, 1982
Temperature range, min.			298.00
Temperature range, max.			6000.00
Cp,gas	20.79	J/mol×K	298.00	Calculated Property
Cp,gas	20.79	J/mol×K	931.56	Calculated Property
Cp,gas	20.79	J/mol×K	1565.11	Calculated Property
Cp,gas	20.79	J/mol×K	2198.67	Calculated Property
Cp,gas	20.79	J/mol×K	2832.22	Calculated Property
Cp,gas	20.79	J/mol×K	3465.78	Calculated Property
Cp,gas	20.79	J/mol×K	4099.33	Calculated Property
Cp,gas	20.79	J/mol×K	4732.89	Calculated Property
Cp,gas	20.79	J/mol×K	5366.44	Calculated Property
Cp,gas	20.79	J/mol×K	6000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Cp,liquid	[36.64; 69.05]	J/mol×K	[24.56; 40.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is Cp,liquid in J/mol×K, T in K
Coefficient A			2.99480e+01
Coefficient B			-2.43960e+02
Coefficient C			2.51752e+01
Coefficient D			-7.94450e-01
Coefficient E			1.02300e-02
Temperature range, min.			24.56
Temperature range, max.			40.00
Cp,liquid	36.64	J/mol×K	24.56	Calculated Property
Cp,liquid	37.94	J/mol×K	26.28	Calculated Property
Cp,liquid	39.32	J/mol×K	27.99	Calculated Property
Cp,liquid	40.86	J/mol×K	29.71	Calculated Property
Cp,liquid	42.74	J/mol×K	31.42	Calculated Property
Cp,liquid	45.14	J/mol×K	33.14	Calculated Property
Cp,liquid	48.37	J/mol×K	34.85	Calculated Property
Cp,liquid	52.87	J/mol×K	36.57	Calculated Property
Cp,liquid	59.38	J/mol×K	38.28	Calculated Property
Cp,liquid	69.05	J/mol×K	40.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
η	[0.0001605; 0.0000284]	Pa×s	[25.09; 44.13]	ChemSep v8.3 pure component data Compiled value
Equation			Y = exp(A + B/T + C·ln(T) + D·T^E) Y is η in Pa×s, T in K
Coefficient A			-8.30020e+01
Coefficient B			4.34940e+02
Coefficient C			1.83500e+01
Coefficient D			-3.49960e-03
Coefficient E			2.00000e+00
Temperature range, min.			25.09
Temperature range, max.			44.13
η	0.0001605	Pa×s	25.09	Calculated Property
η	0.0001250	Pa×s	27.21	Calculated Property
η	0.0001026	Pa×s	29.32	Calculated Property
η	0.0000866	Pa×s	31.44	Calculated Property
η	0.0000739	Pa×s	33.55	Calculated Property
η	0.0000630	Pa×s	35.67	Calculated Property
η	0.0000532	Pa×s	37.78	Calculated Property
η	0.0000442	Pa×s	39.90	Calculated Property
η	0.0000359	Pa×s	42.01	Calculated Property
η	0.0000284	Pa×s	44.13	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ΔvapH	[1.76; 0.49]	kJ/mol	[24.54; 44.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A·(1 − Tr)^(B + C·Tr + D·Tr² + E·Tr³), Tr = T/Tc Y is ΔvapH in kJ/mol, T in K
Coefficient A			1.42090e+00
Coefficient B			-6.30290e-01
Coefficient C			-2.23250e-03
Coefficient D			1.62680e+00
Coefficient E			-7.61100e-01
Critical temperature, Tc (K)			4.44000e+01
Temperature range, min.			24.54
Temperature range, max.			44.00
ΔvapH	1.76	kJ/mol	24.54	Calculated Property
ΔvapH	1.72	kJ/mol	26.70	Calculated Property
ΔvapH	1.67	kJ/mol	28.86	Calculated Property
ΔvapH	1.60	kJ/mol	31.03	Calculated Property
ΔvapH	1.50	kJ/mol	33.19	Calculated Property
ΔvapH	1.39	kJ/mol	35.35	Calculated Property
ΔvapH	1.25	kJ/mol	37.51	Calculated Property
ΔvapH	1.08	kJ/mol	39.68	Calculated Property
ΔvapH	0.86	kJ/mol	41.84	Calculated Property
ΔvapH	0.49	kJ/mol	44.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
Pvap	[44.44; 2653.02]	kPa	[24.56; 44.40]	The Yaws Handbook of Vapor Pressure
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.35144e+01
Coefficient B			-2.65554e+02
Coefficient C			2.76000e+00
Temperature range, min.			24.56
Temperature range, max.			44.40
Pvap	44.44	kPa	24.56	Calculated Property
Pvap	91.84	kPa	26.76	Calculated Property
Pvap	171.55	kPa	28.97	Calculated Property
Pvap	295.48	kPa	31.17	Calculated Property
Pvap	476.27	kPa	33.38	Calculated Property
Pvap	726.68	kPa	35.58	Calculated Property
Pvap	1058.94	kPa	37.79	Calculated Property
Pvap	1484.36	kPa	39.99	Calculated Property
Pvap	2012.91	kPa	42.20	Calculated Property
Pvap	2653.02	kPa	44.40	Calculated Property
Pvap	[28.49; 2664.24]	kPa	[23.45; 44.40]	ChemSep v8.3 pure component data Compiled value
Equation			Y = exp(A + B/T + C·ln(T) + D·T^E) Y is Pvap in kPa, T in K
Coefficient A			2.25512e+01
Coefficient B			-2.69410e+02
Coefficient C			-2.53490e+00
Coefficient D			5.17260e-04
Coefficient E			2.00000e+00
Temperature range, min.			23.45
Temperature range, max.			44.40
Pvap	28.49	kPa	23.45	Calculated Property
Pvap	67.12	kPa	25.78	Calculated Property
Pvap	136.71	kPa	28.11	Calculated Property
Pvap	249.59	kPa	30.43	Calculated Property
Pvap	419.08	kPa	32.76	Calculated Property
Pvap	659.38	kPa	35.09	Calculated Property
Pvap	985.79	kPa	37.42	Calculated Property
Pvap	1415.26	kPa	39.74	Calculated Property
Pvap	1967.16	kPa	42.07	Calculated Property
Pvap	2664.24	kPa	44.40	Calculated Property
Pvap	[0.13; 101.62]	kPa	[15.90; 27.00]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.32546e+01
Coefficient B			-2.20125e+02
Coefficient C			-1.50300e+00
Reference			Stull, 1947
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			15.90
Temperature range, max.			27.00
Pvap	0.13	kPa	15.90	Calculated Property
Pvap	0.44	kPa	17.13	Calculated Property
Pvap	1.22	kPa	18.37	Calculated Property
Pvap	2.98	kPa	19.60	Calculated Property
Pvap	6.47	kPa	20.83	Calculated Property
Pvap	12.81	kPa	22.07	Calculated Property
Pvap	23.47	kPa	23.30	Calculated Property
Pvap	40.31	kPa	24.53	Calculated Property
Pvap	65.52	kPa	25.77	Calculated Property
Pvap	101.62	kPa	27.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
ρl	[1247.03; 485.04]	kg/m3	[24.56; 44.40]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A / B^(1 + (1 − T/C)^D) Y is ρl in kg/m3, T in K
Coefficient A			1.48761e+02
Coefficient B			3.06700e-01
Coefficient C			4.44000e+01
Coefficient D			2.78600e-01
Temperature range, min.			24.56
Temperature range, max.			44.40
ρl	1247.03	kg/m3	24.56	Calculated Property
ρl	1209.59	kg/m3	26.76	Calculated Property
ρl	1169.89	kg/m3	28.97	Calculated Property
ρl	1127.39	kg/m3	31.17	Calculated Property
ρl	1081.26	kg/m3	33.38	Calculated Property
ρl	1030.26	kg/m3	35.58	Calculated Property
ρl	972.18	kg/m3	37.79	Calculated Property
ρl	902.59	kg/m3	39.99	Calculated Property
ρl	809.33	kg/m3	42.20	Calculated Property
ρl	485.04	kg/m3	44.40	Calculated Property

Property	Value	Unit	Temperature (K)	Source
γ	[0.01; 1.12e-04]	N/m	[24.00; 43.36]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is γ in N/m, T in K
Coefficient A			-1.30770e-02
Coefficient B			-9.46380e+00
Coefficient C			-2.52880e+00
Coefficient D			-5.21530e-02
Coefficient E			3.61720e-04
Temperature range, min.			24.00
Temperature range, max.			43.36
γ	0.01	N/m	24.00	Calculated Property
γ	0.01	N/m	26.15	Calculated Property
γ	0.00	N/m	28.30	Calculated Property
γ	0.00	N/m	30.45	Calculated Property
γ	0.00	N/m	32.60	Calculated Property
γ	0.00	N/m	34.76	Calculated Property
γ	0.00	N/m	36.91	Calculated Property
γ	0.00	N/m	39.06	Calculated Property
γ	5.82e-04	N/m	41.21	Calculated Property
γ	1.12e-04	N/m	43.36	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λgas	[0.01; 0.18]	W/m×K	[25.00; 2000.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A·T^B / (1 + C/T + D/T²) Y is λgas in W/m×K, T in K
Coefficient A			1.17170e-03
Coefficient B			6.60990e-01
Coefficient C			1.21090e+01
Coefficient D			-7.01550e+01
Temperature range, min.			25.00
Temperature range, max.			2000.00
λgas	0.01	W/m×K	25.00	Calculated Property
λgas	0.04	W/m×K	244.44	Calculated Property
λgas	0.07	W/m×K	463.89	Calculated Property
λgas	0.09	W/m×K	683.33	Calculated Property
λgas	0.10	W/m×K	902.78	Calculated Property
λgas	0.12	W/m×K	1122.22	Calculated Property
λgas	0.14	W/m×K	1341.67	Calculated Property
λgas	0.15	W/m×K	1561.11	Calculated Property
λgas	0.16	W/m×K	1780.56	Calculated Property
λgas	0.18	W/m×K	2000.00	Calculated Property

Property	Value	Unit	Temperature (K)	Source
λliquid	[0.11; 0.05]	W/m×K	[25.00; 44.00]	ChemSep v8.3 pure component data Compiled value
Equation			Y = A + exp(B/T + C + D·T + E·T²) Y is λliquid in W/m×K, T in K
Coefficient A			-4.98110e-01
Coefficient B			-1.80250e+00
Coefficient C			-4.92570e-01
Coefficient D			9.01660e-03
Coefficient E			-2.40230e-04
Temperature range, min.			25.00
Temperature range, max.			44.00
λliquid	0.11	W/m×K	25.00	Calculated Property
λliquid	0.11	W/m×K	27.11	Calculated Property
λliquid	0.11	W/m×K	29.22	Calculated Property
λliquid	0.11	W/m×K	31.33	Calculated Property
λliquid	0.10	W/m×K	33.44	Calculated Property
λliquid	0.09	W/m×K	35.56	Calculated Property
λliquid	0.08	W/m×K	37.67	Calculated Property
λliquid	0.07	W/m×K	39.78	Calculated Property
λliquid	0.06	W/m×K	41.89	Calculated Property
λliquid	0.05	W/m×K	44.00	Calculated Property

Mixtures

• 2-PROPANOL, 1,1,1,3,3,3-HEXAFLUORO- + neon + Water
• Furan, tetrahydro-2,5-dimethyl- + neon + Furan, tetrahydro-2,5-dimethyl-, cis-
• neon + Argon
• 2,5,8,11-Tetraoxadodecane + neon
• neon + 2,5,8,11,14-Pentaoxapentadecane
• Carbonic acid, dimethyl ester + neon
• Diethyl carbonate + neon

Sources

• Air Liquide Gas Encyclopedia
• Active Thermochemical Tables 1.112, gas-phase enthalpies of formation ChEDL chemicals 1.5.2, from Active Thermochemical Tables (ATcT), version 1.112, Argonne National Laboratory; Ruscic, B. et al. Active Thermochemical Tables: Thermochemistry for the 21st Century. J. Phys.: Conf. Ser. 2005, 16, 561.
• Mathews (1972), critical constants of inorganic substances ChEDL chemicals 1.5.2, from Mathews, J. F. Critical Constants of Inorganic Substances. Chem. Rev. 1972, 72, 71-100.
• PSRK revision IV (2005), critical constants and acentric factors of 1000 components ChEDL chemicals 1.5.2, from Horstmann, S.; Jabłoniec, A.; Krafczyk, J.; Fischer, K.; Gmehling, J. PSRK Group Contribution Equation of State: Comprehensive Revision and Extension IV, Including Critical Constants and α-Function Parameters for 1000 Components. Fluid Phase Equilib. 2005, 227, 157-164.
• Staveley, Lobo and Calado (1981), triple points ChEDL chemicals 1.5.2, from Staveley, L. A. K.; Lobo, L. Q.; Calado, J. C. G. Triple-Points of Low Melting Substances and Their Use in Cryogenic Work. Cryogenics 1981, 21, 131-144.
• ChemSep v8.3 pure component data Converted from ChemSep v8.3 pure component data, H. Kooijman and R. Taylor (2021, 2022), Artistic License 2.0; see how the values differ.
• Measurement of Binary Diffusion Coefficients for Neon Argon Gas Mixtures Using a Loschmidt Cell Combined with Holographic Interferometry
• Further results on the triple point temperature of pure 20Ne and 22Ne
• Solubility of gases in fluoroorganic alcohols. Part II. Solubilities of noble gases in (water + 1,1,1,3,3,3-hexafluoropropan-2-ol) at 298.15 K and 101.33 kPa
• Measurements of enthalpy of sublimation of Ne, N2, O2, Ar, CO2, Kr, Xe, and H2O using a double paddle oscillator
• Solubilities of gases in cycloethers. The solubility of 13 nonpolar gases in 2,5-dimethyltetrahydrofuran at 273.15 to 303.15 K and 101.32 kPa
• Solubilities of Nonpolar Gases in Triethylene Glycol Dimethyl Ether, Tetraethylene Glycol Dimethyl Ether, Dimethyl Carbonate, and Diethyl Carbonate at 298.15 K and 101.33 kPa Partial Pressure of Gas
• Solubilities of Nonpolar Gases in Dimethyl Carbonate and Diethyl Carbonate
• KDB
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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