Chemical Properties of silver (CAS 7440-22-4)

InChI

InChI=1S/Ag

InChI Key

BQCADISMDOOEFD-UHFFFAOYSA-N

Formula

Ag

SMILES

[Ag]

Molecular Weight¹

107.87

CAS

7440-22-4

Other Names

• argentum
• silver element

• ω : Acentric Factor.
• α_p : Isobaric thermal expansion coefficient (1/K).
• η : Dynamic viscosity (Pa×s).
• EA : Electron affinity (eV).
• σ_cond : Electrical conductivity (S/m).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_vapH : Enthalpy of vaporization at a given temperature (kJ/mol).
• IE : Ionization energy (eV).
• P_c : Critical Pressure (kPa).
• 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).
• 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
ω	0.0316		Relay (1.0) Calculated Property
EA	[1.30; 1.30]	eV
EA	1.30 ± 0.03	eV	NIST
EA	1.30 ± 0.00	eV	NIST
EA	1.30 ± 0.01	eV	NIST
EA	1.30 ± 0.20	eV	NIST
ΔfH°gas	284.90 ± 0.80	kJ/mol	NIST
IE	[7.50; 7.80]	eV
IE	7.58	eV	NIST
IE	7.58	eV	NIST
IE	7.57	eV	NIST
IE	7.50	eV	NIST
IE	7.62 ± 0.07	eV	NIST
IE	7.57	eV	NIST
IE	7.50 ± 0.30	eV	NIST
IE	7.58	eV	NIST
IE	Outlier 7.80 ± 0.20	eV	NIST
IE	7.60	eV	NIST
IE	7.51 ± 0.07	eV	NIST
IE	7.58	eV	NIST
IE	7.53	eV	NIST
Pc	2752.34	kPa	Relay (1.0-beta) Calculated Property
S°gas,1 bar	173.00 ± 0.00	J/mol×K	NIST
S°solid,1 bar	42.55 ± 0.20	J/mol×K	NIST
Tboil	542.51	K	Relay (1.0) Calculated Property
Tc	811.99	K	Relay (1.0) Calculated Property
Tfus	724.19	K	Relay (1.0) Calculated Property
Vc	0.134	m3/kmol	Relay (1.0) Calculated Property

Cheméo can also estimate Enthalpy of vaporization at standard conditions, Standard Gibbs free energy of formation, 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
η	[0.0022140; 0.0035200]	Pa×s	[1273.00; 1673.00]
η	0.0035200	Pa×s	1273.00	A Novel Vibrating Finger Viscometer for High-Temperature Measurements in Liquid Metals and Alloys
η	0.0029040	Pa×s	1323.00	A Novel Vibrating Finger Viscometer for High-Temperature Measurements in Liquid Metals and Alloys
η	0.0028120	Pa×s	1373.00	A Novel Vibrating Finger Viscometer for High-Temperature Measurements in Liquid Metals and Alloys
η	0.0026490	Pa×s	1423.00	A Novel Vibrating Finger Viscometer for High-Temperature Measurements in Liquid Metals and Alloys
η	0.0025400	Pa×s	1473.00	A Novel Vibrating Finger Viscometer for High-Temperature Measurements in Liquid Metals and Alloys
η	0.0024980	Pa×s	1523.00	A Novel Vibrating Finger Viscometer for High-Temperature Measurements in Liquid Metals and Alloys
η	0.0023990	Pa×s	1573.00	A Novel Vibrating Finger Viscometer for High-Temperature Measurements in Liquid Metals and Alloys
η	0.0023320	Pa×s	1623.00	A Novel Vibrating Finger Viscometer for High-Temperature Measurements in Liquid Metals and Alloys
η	0.0022140	Pa×s	1673.00	A Novel Vibrating Finger Viscometer for High-Temperature Measurements in Liquid Metals and Alloys
σcond	61070000.00	S/m	298.00	Structural and physical studies of the Ag-rich alloys from Ag-Li system
ΔvapH	265.10	kJ/mol	1367.00	Mass spectrometric study of the vaporization behaviour of alpha-Na2NpO4: Thermodynamic investigation of the enthalpy of formation

Datasets

Isobaric coefficient of expansion, 1/K

Fixed		Measured
Temperature, K - Crystal	Pressure, kPa - Crystal	Isobaric coefficient of expansion, 1/K - Crystal
300.00	101.33	0.0000
Reference

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.00e-03; 110.75]	kPa	[1283.00; 2453.15]	The Yaws Handbook of Vapor Pressure
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			1.66364e+01
Coefficient B			-2.82950e+04
Coefficient C			-8.12200e+01
Temperature range, min.			1283.00
Temperature range, max.			2453.15
Pvap	1.00e-03	kPa	1283.00	Calculated Property
Pvap	9.96e-03	kPa	1413.02	Calculated Property
Pvap	0.07	kPa	1543.03	Calculated Property
Pvap	0.32	kPa	1673.05	Calculated Property
Pvap	1.23	kPa	1803.07	Calculated Property
Pvap	3.89	kPa	1933.08	Calculated Property
Pvap	10.59	kPa	2063.10	Calculated Property
Pvap	25.50	kPa	2193.12	Calculated Property
Pvap	55.45	kPa	2323.13	Calculated Property
Pvap	110.75	kPa	2453.15	Calculated Property
Pvap	[0.92; 82.43]	kPa	[1823.00; 2425.00]	NIST
Equation			ln(Y) = A + B/(T + C) Y is Pvap in kPa, T in K
Coefficient A			9.10219e+00
Coefficient B			-5.76920e+03
Coefficient C			-1.19495e+03
Reference			Hartmann and Schneider, 1929
Comment			Coefficents calculated by NIST from author's data.
Temperature range, min.			1823.00
Temperature range, max.			2425.00
Pvap	0.92	kPa	1823.00	Calculated Property
Pvap	2.23	kPa	1889.89	Calculated Property
Pvap	4.62	kPa	1956.78	Calculated Property
Pvap	8.50	kPa	2023.67	Calculated Property
Pvap	14.30	kPa	2090.56	Calculated Property
Pvap	22.38	kPa	2157.44	Calculated Property
Pvap	33.04	kPa	2224.33	Calculated Property
Pvap	46.51	kPa	2291.22	Calculated Property
Pvap	62.95	kPa	2358.11	Calculated Property
Pvap	82.43	kPa	2425.00	Calculated Property

Mixtures

• silver + Indium
• silver + gallium
• silver + tin + gallium
• antimony + silver
• silver + tin + Indium
• silver + lead + copper
• silver + lead
• silver + gold + lead
• silver + Nickel + Bismuth
• silver + gold + gallium
• silver + calcium
• silver + lithium
• silver + cadmium + Indium

Sources

• Cheméo Relay (1.0)
• 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.
• A Novel Vibrating Finger Viscometer for High-Temperature Measurements in Liquid Metals and Alloys
• Experimental investigation and modelling of phase equilibria for the Ag-Cu-Pb system in vacuum distillation
• Mass spectrometric study of the vaporization behaviour of alpha-Na2NpO4: Thermodynamic investigation of the enthalpy of formation
• Experimentally determined thermodynamic properties of schapbachite (a-AgBiS2) below T = 700 K
• Thermodynamic stability of AuSe at temperature from (400 to 700) K by a solid state galvanic cell
• Calorimetric studies and thermodynamic properties of liquid Ag-Ca alloys
• Calorimetric measurements and first principles to study the (Ag-Li) liquid system
• Thermodynamic study in the Ag-Sb-S system by the EMF method
• Thermodynamic properties of liquid Ag-Li alloys
• Enthalpy of mixing in the Ag-Cd-In ternary liquid phase
• Enthalpies of mixing of liquid Ag-Ga, Au-Ga and Ag-Au-Ga alloys
• Thermodynamic properties of liquid silver indium alloys determined from e.m.f. measurements
• Interfaces in lead-free solder alloys: Enthalpy of formation of binary Ag Sn, Cu Sn and Ni Sn intermetallic compounds
• Enthalpies of mixing of Au Pb and Ag Au Pb liquid alloys at 973K
• Partial and Integral Enthalpies of mixing of Ag-Ga-Sn liquid alloys
• Standard enthalpies of formation of the AgCs(NO3)2 and Ag3Cs(NO3)4 compounds
• Thermodynamic behavior of polyvalent solutes in solid silver: System Ag Sb
• The measurement of thermal conductivity variation with temperature for Sn-20 wt.% In based lead-free ternary solders
• On the thermal characterization of solids by photoacoustic calorimetry: thermal diffusivity and linear thermal expansion coefficient
• Mixing enthalpies of liquid Bi-Ni and Ag-Bi-Ni alloys
• Thermodynamic properties of liquid silver-gold-gallium alloys determined from EMF measurements with solid YSZ electrolyte
• Structural and physical studies of the Ag-rich alloys from Ag-Li system
• KDB
• 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.
Outlier This icon means that the value is more than 2 standard deviations away from the property mean.
Calculated This icon marks a calculated value or equation: a prediction, not a measurement.
These property values are available through the Cheméo API. A free account gives you an access key.