Chemical Properties of Methyl radical (CAS 2229-07-4)

InChI

InChI=1S/CH3/h1H3

InChI Key

WCYWZMWISLQXQU-UHFFFAOYSA-N

Formula

CH3

SMILES

[CH3]

Molecular Weight¹

15.03

CAS

2229-07-4

• C_p,gas : Ideal gas heat capacity (J/mol×K).
• η : Dynamic viscosity (Pa×s).
• EA : Electron affinity (eV).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_{(+) ion} : Enthalpy of formation of positive ion at standard conditions (kJ/mol).
• Δ_fH_{(+) ion,0K} : Enthalpy of formation of positive ion at 0K (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• IE : Ionization energy (eV).
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
EA	[0.08; 1.13]	eV
EA	0.08 ± 0.03	eV	NIST
EA	0.50	eV	NIST
EA	0.62 ± 0.01	eV	NIST
EA	0.13	eV	NIST
EA	1.13	eV	NIST
EA	1.00 ± 1.10	eV	NIST
EA	1.08	eV	NIST
ΔfH°gas	147.00 ± 1.00	kJ/mol	NIST
ΔfH°(+) ion	1095.00	kJ/mol	NIST
ΔfH(+) ion,0K	1099.00	kJ/mol	NIST
ΔfusH°	0.03	kJ/mol	Joback Calculated Property
IE	[9.60; 9.87]	eV
IE	9.84 ± 0.01	eV	NIST
IE	9.84 ± 0.00	eV	NIST
IE	9.84	eV	NIST
IE	9.84 ± 0.02	eV	NIST
IE	9.84 ± 0.05	eV	NIST
IE	Outlier 9.60 ± 0.30	eV	NIST
IE	9.84 ± 0.01	eV	NIST
IE	9.86 ± 0.04	eV	NIST
IE	9.81 ± 0.02	eV	NIST
IE	9.84 ± 0.03	eV	NIST
IE	9.87 ± 0.05	eV	NIST
IE	9.83 ± 0.01	eV	NIST
IE	9.82 ± 0.04	eV	NIST
IE	9.84 ± 0.00	eV	NIST
IE	9.84 ± 0.01	eV	NIST
IE	9.82 ± 0.02	eV	NIST
IE	9.86 ± 0.04	eV	NIST
logPoct/wat	0.450		Crippen Calculated Property
McVol	22.800	ml/mol	McGowan Calculated Property

Cheméo can also estimate Normal Boiling Point Temperature, Normal melting (fusion) point, Critical Temperature, Critical Pressure, Critical Volume, Enthalpy of vaporization at standard conditions, Standard Gibbs free energy of formation, Acentric Factor, 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
Cp,gas	[15.82; 29.30]	J/mol×K	[221.58; 370.90]
Cp,gas	15.82	J/mol×K	221.58	Joback Calculated Property
Cp,gas	18.52	J/mol×K	246.47	Joback Calculated Property
Cp,gas	21.02	J/mol×K	271.35	Joback Calculated Property
Cp,gas	23.34	J/mol×K	296.24	Joback Calculated Property
Cp,gas	25.49	J/mol×K	321.13	Joback Calculated Property
Cp,gas	27.47	J/mol×K	346.02	Joback Calculated Property
Cp,gas	29.30	J/mol×K	370.90	Joback Calculated Property
η	[0.0000241; 0.0000294]	Pa×s	[117.40; 221.58]
η	0.0000241	Pa×s	117.40	Joback Calculated Property
η	0.0000255	Pa×s	134.76	Joback Calculated Property
η	0.0000266	Pa×s	152.13	Joback Calculated Property
η	0.0000275	Pa×s	169.49	Joback Calculated Property
η	0.0000282	Pa×s	186.85	Joback Calculated Property
η	0.0000289	Pa×s	204.22	Joback Calculated Property
η	0.0000294	Pa×s	221.58	Joback Calculated Property

Similar Compounds

Find more compounds similar to Methyl radical.

Sources

• Cheméo Relay (1.0, beta) Beta: served but experimental, data-limited and below our cross-validation release bar; the Joback value is recommended where available.
• Crippen Method
• Crippen Method
• Joback Method
• McGowan Method
• NIST Webbook

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.
Outlier This icon means that the value is more than 2 standard deviations away from the property mean.
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