Chemical Properties of thulium (CAS 7440-30-4)

InChI

InChI=1S/Tm

InChI Key

FRNOGLGSGLTDKL-UHFFFAOYSA-N

Formula

Tm

SMILES

[Tm]

Molecular Weight¹

168.93

CAS

7440-30-4

• EA : Electron affinity (eV).
• IE : Ionization energy (eV).
• P_vap : Vapor pressure (kPa).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
EA	[0.03; 1.03]	eV
EA	1.03 ± 0.02	eV	NIST
EA	0.03 ± 0.01	eV	NIST
IE	[5.70; 6.22]	eV
IE	6.18 ± 0.00	eV	NIST
IE	6.18	eV	NIST
IE	6.18 ± 0.00	eV	NIST
IE	6.10 ± 0.10	eV	NIST
IE	Outlier 5.70	eV	NIST
IE	6.18 ± 0.01	eV	NIST
IE	6.03 ± 0.04	eV	NIST
IE	5.87 ± 0.10	eV	NIST
IE	6.18 ± 0.02	eV	NIST
IE	6.18 ± 0.02	eV	NIST
IE	6.22 ± 0.02	eV	NIST
IE	6.15 ± 0.02	eV	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.00e-03; 1.00]	kPa	[1117.15; 1570.15]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.59968e+01
Coefficient B			-2.40282e+04
Coefficient C			-6.81000e+01
Temperature range, min.			1117.15
Temperature range, max.			1570.15
Pvap	1.00e-03	kPa	1117.15	Calculated Property
Pvap	2.85e-03	kPa	1167.48	Calculated Property
Pvap	7.43e-03	kPa	1217.82	Calculated Property
Pvap	0.02	kPa	1268.15	Calculated Property
Pvap	0.04	kPa	1318.48	Calculated Property
Pvap	0.08	kPa	1368.82	Calculated Property
Pvap	0.17	kPa	1419.15	Calculated Property
Pvap	0.32	kPa	1469.48	Calculated Property
Pvap	0.57	kPa	1519.82	Calculated Property
Pvap	1.00	kPa	1570.15	Calculated Property

Sources

• Investigation in the variation of Gibbs energy of formation of RE6UO12 (RE = La, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Tm, Yb, Lu) along the 4f series
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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