Chemical Properties of Ethane, 1,2-diiodo- (CAS 624-73-7)

InChI

InChI=1S/C2H4I2/c3-1-2-4/h1-2H2

InChI Key

GBBZLMLLFVFKJM-UHFFFAOYSA-N

Formula

C2H4I2

SMILES

ICCI

Molecular Weight¹

281.86

CAS

624-73-7

Other Names

• 1,2-Diiodoethane
• CH2ICH2I
• Diiodoethane
• Ethylene iodide

• ω : Acentric Factor.
• Δ_cH°_solid : Standard solid enthalpy of combustion (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• η : Dynamic viscosity (Pa×s).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_solid : Solid phase enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_subH° : Enthalpy of sublimation at standard conditions (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
• Δ_vapH : Enthalpy of vaporization at a given temperature (kJ/mol).
• IE : Ionization energy (eV).
• log₁₀WS : Log10 of Water solubility in mol/l.
• logP_oct/wat : Octanol/Water partition coefficient.
• McVol : McGowan's characteristic volume (ml/mol).
• P_c : Critical Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• I_np : Non-polar retention indices.
• 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).
• Z_c : Critical Compressibility.
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ω	0.2230		KDB
ΔcH°solid	-1368.00 ± 0.60	kJ/mol	NIST
ΔfH°gas	[66.80; 73.30]	kJ/mol
ΔfH°gas	73.30 ± 1.10	kJ/mol	NIST
ΔfH°gas	66.80 ± 1.70	kJ/mol	NIST
ΔfH°solid	9.30 ± 0.80	kJ/mol	NIST
ΔfusH°	9.75	kJ/mol	Joback Calculated Property
ΔsubH°	64.00 ± 0.70	kJ/mol	NIST
ΔvapH°	49.80	kJ/mol	NIST
IE	[9.40; 9.50]	eV
IE	9.40	eV	NIST
IE	9.50 ± 0.02	eV	NIST
log10WS	-2.64		Relay (1.0) Calculated Property
logPoct/wat	1.856		Crippen Calculated Property
McVol	90.680	ml/mol	McGowan Calculated Property
Pc	4730.00	kPa	KDB
Inp	[984.00; 1015.00]
Inp	1002.00		NIST
Inp	1015.00		NIST
Inp	984.00		NIST
Inp	1008.00		NIST
Inp	1008.00		NIST
Inp	1002.00		NIST
Tboil	[473.20; 473.20]	K
Tboil	473.20	K	KDB
Tboil	473.20	K	NIST
Tc	749.90	K	KDB
Tfus	356.00	K	KDB
Vc	0.324	m3/kmol	KDB
Zc	0.2454120		KDB

Cheméo can also estimate Standard Gibbs free energy of formation for this compound, but it falls outside the models' validated range, so it is not shown here. Open the prediction tool to compute it on demand.

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[103.03; 124.00]	J/mol×K	[431.64; 684.10]
Cp,gas	103.03	J/mol×K	431.64	Joback Calculated Property
Cp,gas	107.42	J/mol×K	473.72	Joback Calculated Property
Cp,gas	111.40	J/mol×K	515.79	Joback Calculated Property
Cp,gas	115.00	J/mol×K	557.87	Joback Calculated Property
Cp,gas	118.28	J/mol×K	599.95	Joback Calculated Property
Cp,gas	121.26	J/mol×K	642.02	Joback Calculated Property
Cp,gas	124.00	J/mol×K	684.10	Joback Calculated Property
η	[0.0004983; 0.0060296]	Pa×s	[228.42; 431.64]
η	0.0060296	Pa×s	228.42	Joback Calculated Property
η	0.0030431	Pa×s	262.29	Joback Calculated Property
η	0.0017958	Pa×s	296.16	Joback Calculated Property
η	0.0011809	Pa×s	330.03	Joback Calculated Property
η	0.0008396	Pa×s	363.90	Joback Calculated Property
η	0.0006326	Pa×s	397.77	Joback Calculated Property
η	0.0004983	Pa×s	431.64	Joback Calculated Property
ΔvapH	47.70	kJ/mol	448.50	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.64]	kPa	[355.50; 505.75]	The Yaws Handbook of Vapor Pressure
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.22119e+01
Coefficient B			-2.46094e+03
Coefficient C			-1.49119e+02
Temperature range, min.			355.50
Temperature range, max.			505.75
Pvap	1.33	kPa	355.50	Calculated Property
Pvap	3.25	kPa	372.19	Calculated Property
Pvap	7.02	kPa	388.89	Calculated Property
Pvap	13.68	kPa	405.58	Calculated Property
Pvap	24.60	kPa	422.28	Calculated Property
Pvap	41.33	kPa	438.97	Calculated Property
Pvap	65.63	kPa	455.67	Calculated Property
Pvap	99.35	kPa	472.36	Calculated Property
Pvap	144.39	kPa	489.06	Calculated Property
Pvap	202.64	kPa	505.75	Calculated Property
Pvap	[3.99; 4703.89]	kPa	[371.15; 749.91]	KDB Vapor Pressure Data
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			8.57571e+01
Coefficient B			-9.24244e+03
Coefficient C			-1.01406e+01
Coefficient D			3.82987e-06
Temperature range, min.			371.15
Temperature range, max.			749.91
Pvap	3.99	kPa	371.15	Calculated Property
Pvap	19.26	kPa	413.23	Calculated Property
Pvap	65.49	kPa	455.32	Calculated Property
Pvap	173.55	kPa	497.40	Calculated Property
Pvap	383.56	kPa	539.49	Calculated Property
Pvap	741.15	kPa	581.57	Calculated Property
Pvap	1295.17	kPa	623.66	Calculated Property
Pvap	2098.25	kPa	665.74	Calculated Property
Pvap	3210.19	kPa	707.83	Calculated Property
Pvap	4703.89	kPa	749.91	Calculated Property

Similar Compounds

Find more compounds similar to Ethane, 1,2-diiodo-.

Sources

• KDB Vapor Pressure Data
• Cheméo Relay (1.0)
• Crippen Method
• Crippen Method
• Joback Method
• KDB
• McGowan Method
• 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.
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