Chemical Properties of uranium (CAS 7440-61-1)

InChI

InChI=1S/U

InChI Key

JFALSRSLKYAFGM-UHFFFAOYSA-N

Formula

U

SMILES

[U]

Molecular Weight¹

238.03

CAS

7440-61-1

• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• IE : Ionization energy (eV).
• P_vap : Vapor pressure (kPa).
• S°_{gas,1 bar} : Molar entropy at standard conditions (1 bar) (J/mol×K).
• S°_{solid,1 bar} : Solid phase molar entropy at standard conditions (J/mol×K).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
PAff	995.20	kJ/mol	NIST
BasG	973.20	kJ/mol	NIST
ΔfH°gas	533.00 ± 8.00	kJ/mol	NIST
IE	[6.00; 6.80]	eV
IE	6.19	eV	NIST
IE	6.19	eV	NIST
IE	6.22 ± 0.02	eV	NIST
IE	6.00 ± 0.30	eV	NIST
IE	6.09 ± 0.11	eV	NIST
IE	6.00 ± 0.50	eV	NIST
IE	6.00 ± 0.50	eV	NIST
IE	6.19 ± 0.00	eV	NIST
IE	6.19 ± 0.00	eV	NIST
IE	6.05 ± 0.07	eV	NIST
IE	6.10 ± 0.10	eV	NIST
IE	6.05 ± 0.07	eV	NIST
IE	6.30 ± 0.30	eV	NIST
IE	Outlier 6.80 ± 1.50	eV	NIST
IE	6.20 ± 0.50	eV	NIST
IE	6.19 ± 0.06	eV	NIST
IE	6.10 ± 0.30	eV	NIST
IE	6.00 ± 0.50	eV	NIST
IE	6.19 ± 0.06	eV	NIST
IE	6.11 ± 0.05	eV	NIST
IE	6.08 ± 0.08	eV	NIST
S°gas,1 bar	199.79 ± 0.10	J/mol×K	NIST
S°solid,1 bar	50.20 ± 0.20	J/mol×K	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[0.01; 94.10]	kPa	[2325.15; 4402.15]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.58761e+01
Coefficient B			-5.35877e+04
Coefficient C			3.26850e+02
Temperature range, min.			2325.15
Temperature range, max.			4402.15
Pvap	0.01	kPa	2325.15	Calculated Property
Pvap	0.07	kPa	2555.93	Calculated Property
Pvap	0.26	kPa	2786.71	Calculated Property
Pvap	0.86	kPa	3017.48	Calculated Property
Pvap	2.43	kPa	3248.26	Calculated Property
Pvap	6.02	kPa	3479.04	Calculated Property
Pvap	13.48	kPa	3709.82	Calculated Property
Pvap	27.63	kPa	3940.59	Calculated Property
Pvap	52.62	kPa	4171.37	Calculated Property
Pvap	94.10	kPa	4402.15	Calculated Property

Mixtures

• tin + uranium + gallium
• tin + uranium
• uranium + gallium
• uranium + indium + gallium

Sources

• A calorimetric and thermodynamic investigation of potassium uranyl tungstate K2[(UO2)(W2O8)]
• Thermodynamic properties and behaviour of A2[(UO2)(MoO4)2] compounds with A = Li, Na, K, Rb, and Cs
• Thermodynamic investigation of Na2U2O7 using Knudsen effusion mass spectrometry and high temperature X-ray diffraction
• A calorimetric and thermodynamic investigation of A2[(UO2)2(MoO4)O2] compounds with A = K and Rb and calculated phase relations in the system (K2MoO4 + UO3 + H2O)
• Thermodynamics of uranium in (Ga + Sn) eutectic alloy
• A calorimetric investigation of A2[(UO2)2(WO5)O] compounds with A = K, Rb and Cs and calculated phase relations in the K2WO4-UO3-H2O and K2MoO4-K2WO4-UO3-H2O systems
• Thermodynamic properties of ternary Me-Ga-In (Me = La, U) alloys in a fused Ga-In/LiCl-KCl system
• A calorimetric and thermodynamic investigation of cesium uranyl tungstate Cs8[(UO2)4(WO4)4(WO5)2]
• 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
• An experimental calorimetric and a DFT + U study of the thermodynamic properties of Cs4[(UO2)4(WO5)(W2O8)O2] and Cs4[(UO2)7(WO5)3O3]
• Calorimetric investigations of UPb3 compound
• 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.