Chemical Properties of Chlorine (CAS 7782-50-5)

InChI

InChI=1S/Cl2/c1-2

InChI Key

KZBUYRJDOAKODT-UHFFFAOYSA-N

Formula

Cl2

SMILES

ClCl

Molecular Weight¹

70.91

CAS

7782-50-5

Other Names

• BERTHOLITE
• CHLORE
• Chloor
• Chlor
• Chlorine mol.
• Cl2
• Cloro
• Diatomic chlorine
• Molecular chlorine
• UN 1017
• chlorine, diatomic

• ω : Acentric Factor.
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• μ : Dipole Moment (debye).
• η : Dynamic viscosity (Pa×s).
• EA : Electron affinity (eV).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fusH° : Enthalpy of fusion at standard conditions (kJ/mol).
• Δ_vapH° : Enthalpy of vaporization at standard conditions (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).
• NFPA Health : NFPA Health Rating.
• NFPA Safety : NFPA Safety Rating.
• P_c : Critical Pressure (kPa).
• P_triple : Triple Point Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• ρ_c : Critical density (kg/m³).
• ρ_l : Liquid Density (kg/m³).
• S°_{gas,1 bar} : Molar entropy at standard conditions (1 bar) (J/mol×K).
• T_boil : Normal Boiling Point Temperature (K).
• T_c : Critical Temperature (K).
• T_fus : Normal melting (fusion) point (K).
• T_triple : Triple Point Temperature (K).
• V_c : Critical Volume (m³/kmol).
• Z_c : Critical Compressibility.
• Z_ra : Rackett Parameter.
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
ω	0.0900		KDB
μ	0.00	debye	KDB
EA	[1.02; 3.20]	eV
EA	2.50 ± 0.20	eV	NIST
EA	2.33	eV	NIST
EA	2.40 ± 0.20	eV	NIST
EA	2.32 ± 0.10	eV	NIST
EA	2.45 ± 0.15	eV	NIST
EA	2.46 ± 0.14	eV	NIST
EA	2.38 ± 0.10	eV	NIST
EA	2.52 ± 0.17	eV	NIST
EA	Outlier 1.02 ± 0.05	eV	NIST
EA	3.20 ± 0.20	eV	NIST
ΔfG°	-74.74	kJ/mol	Joback Calculated Property
ΔfH°gas	-74.81	kJ/mol	Joback Calculated Property
ΔfusH°	4.15	kJ/mol	Joback Calculated Property
ΔvapH°	24.36	kJ/mol	Joback Calculated Property
IE	[11.48; 11.59]	eV
IE	11.48 ± 0.00	eV	NIST
IE	11.48 ± 0.01	eV	NIST
IE	11.50	eV	NIST
IE	11.51 ± 0.01	eV	NIST
IE	11.48 ± 0.01	eV	NIST
IE	11.49	eV	NIST
IE	11.49	eV	NIST
IE	11.48 ± 0.01	eV	NIST
IE	11.49	eV	NIST
IE	Outlier 11.59	eV	NIST
log10WS	-1.12		Crippen Calculated Property
logPoct/wat	1.379		Crippen Calculated Property
McVol	35.340	ml/mol	McGowan Calculated Property
NFPA Health	3		KDB
NFPA Safety	1		KDB
Pc	[7977.00; 7991.40]	kPa
Pc	7991.00	kPa	KDB
Pc	7991.40	kPa	NIST
Pc	7977.00 ± 50.00	kPa	NIST
Ptriple	[1.39; 1.39]	kPa
Ptriple	1.39	kPa	KDB
Ptriple	1.39 ± 0.00	kPa	NIST
ρc	576.78	kg/m3	NIST
S°gas,1 bar	223.08 ± 0.01	J/mol×K	NIST
Tboil	[239.11; 239.50]	K
Tboil	239.11	K	KDB
Tboil	239.50 ± 0.60	K	NIST
Tc	[416.90; 416.96]	K
Tc	416.90	K	KDB
Tc	416.96	K	NIST
Tc	416.90 ± 0.50	K	NIST
Tfus	171.60	K	KDB
Ttriple	[172.12; 172.17]	K
Ttriple	172.17	K	KDB
Ttriple	172.17 ± 0.05	K	NIST
Ttriple	172.12 ± 0.15	K	NIST
Vc	0.123	m3/kmol	KDB
Zc	0.2835550		KDB
Zra	0.28		KDB

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[32.30; 33.70]	J/mol×K	[274.26; 454.21]
Cp,gas	32.30	J/mol×K	274.26	Joback Calculated Property
Cp,gas	32.58	J/mol×K	304.25	Joback Calculated Property
Cp,gas	32.84	J/mol×K	334.24	Joback Calculated Property
Cp,gas	33.08	J/mol×K	364.23	Joback Calculated Property
Cp,gas	33.30	J/mol×K	394.22	Joback Calculated Property
Cp,gas	33.51	J/mol×K	424.21	Joback Calculated Property
Cp,gas	33.70	J/mol×K	454.21	Joback Calculated Property
η	[0.0002781; 0.0020231]	Pa×s	[149.60; 274.26]
η	0.0020231	Pa×s	149.60	Joback Calculated Property
η	0.0011880	Pa×s	170.38	Joback Calculated Property
η	0.0007832	Pa×s	191.15	Joback Calculated Property
η	0.0005603	Pa×s	211.93	Joback Calculated Property
η	0.0004255	Pa×s	232.71	Joback Calculated Property
η	0.0003381	Pa×s	253.48	Joback Calculated Property
η	0.0002781	Pa×s	274.26	Joback Calculated Property
ρl	1563.00	kg/m3	239.00	KDB

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.37; 7789.75]	kPa	[172.12; 417.15]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.42483e+01
Coefficient B			-2.08776e+03
Coefficient C			-2.23200e+01
Temperature range, min.			172.12
Temperature range, max.			417.15
Pvap	1.37	kPa	172.12	Calculated Property
Pvap	11.64	kPa	199.35	Calculated Property
Pvap	56.08	kPa	226.57	Calculated Property
Pvap	186.61	kPa	253.80	Calculated Property
Pvap	482.11	kPa	281.02	Calculated Property
Pvap	1039.61	kPa	308.25	Calculated Property
Pvap	1961.40	kPa	335.47	Calculated Property
Pvap	3343.16	kPa	362.70	Calculated Property
Pvap	5265.56	kPa	389.92	Calculated Property
Pvap	7789.75	kPa	417.15	Calculated Property

Similar Compounds

Find more compounds similar to Chlorine.

Sources

• Crippen Method
• Crippen Method
• Standard molar enthalpies of formation of hydroxy-, chlor-, and bromapatite
• Thermochemical study of some dichloroacetophenone isomers
• Experimental and computational thermochemical studies of benzoxazole and two chlorobenzoxadole derivatives
• Thermochemistry on crystalline compounds bis-(n-dodecylammonium) tetrachlorometallates (n-C12H25NH3)2MCl4(s) (M = Cu and Cd)
• Phase equilibria of the systems of CsCl + ErCl3 + H2O and CsCl + ErCl3 + HCl (~10.7%, ~14.4%) + H2O at T = 298.15 K and the standard molar enthalpies of formation of solid phase compounds
• Thermodynamic study on complex of neodymium with glycine
• Isomorphism and phase diagram of Pb5(PO4)3F-Pb5(PO4)3Cl system
• Low-Temperature Heat Capacities and Standard Molar Enthalpy of Formation of Ethylenediammonium Tetrachlorocobaltate(II) Chloride (H3NCH2CH2NH3)2[CoCl4]Cl2(s)
• Joback Method
• KDB
• McGowan Method
• 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.