Chemical Properties of 1-Butanethiol (CAS 109-79-5)

InChI

InChI=1S/C4H10S/c1-2-3-4-5/h5H,2-4H2,1H3

InChI Key

WQAQPCDUOCURKW-UHFFFAOYSA-N

Formula

C4H10S

SMILES

CCCCS

Molecular Weight¹

90.19

CAS

109-79-5

Other Names

• 1-Butyl mercaptan
• 1-Mercaptobutane
• 1-butylthiol
• Butanethiol
• Butyl mercaptan
• Butylthiol
• NCI-C60866
• Thiobutyl alcohol
• butane-1-thiol
• n-Butanethiol
• n-Butyl mercaptan
• n-Butyl thioalcohol
• n-Butylthiol
• n-C4H9SH

• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• C_p,liquid : Liquid phase heat capacity (J/mol×K).
• 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_fusH : Enthalpy of fusion at a given temperature (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).
• NFPA Fire : NFPA Fire Rating.
• NFPA Health : NFPA Health Rating.
• P_c : Critical Pressure (kPa).
• P_vap : Vapor pressure (kPa).
• ρ_c : Critical density (kg/m³).
• I_np : Non-polar retention indices.
• I : Polar retention indices.
• Δ_fusS : Entropy of fusion at a given temperature (J/mol×K).
• S°_liquid : Liquid 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).
• T_triple : Triple Point Temperature (K).
• V_c : Critical Volume (m³/kmol).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
PAff	801.70	kJ/mol	NIST
BasG	770.50	kJ/mol	NIST
ΔfG°	12.19	kJ/mol	Joback Calculated Property
ΔfH°gas	-87.41	kJ/mol	Joback Calculated Property
ΔfusH°	10.16	kJ/mol	Joback Calculated Property
ΔvapH°	[36.50; 36.70]	kJ/mol
ΔvapH°	36.70	kJ/mol	NIST
ΔvapH°	36.50	kJ/mol	NIST
ΔvapH°	36.60 ± 0.40	kJ/mol	NIST
IE	[9.14; 9.15]	eV
IE	9.14 ± 0.01	eV	NIST
IE	9.15	eV	NIST
IE	9.14 ± 0.02	eV	NIST
log10WS	[-2.18; -2.18]
log10WS	-2.18		Aq. Sol...
log10WS	-2.18		Estimat...
logPoct/wat	1.716		Crippen Calculated Property
McVol	83.570	ml/mol	McGowan Calculated Property
NFPA Fire	3		KDB
NFPA Health	2		KDB
Pc	4227.54	kPa	Joback Calculated Property
ρc	277.78 ± 6.31	kg/m3	NIST
Inp	[673.00; 742.00]
Inp	721.30		NIST
Inp	729.70		NIST
Inp	714.80		NIST
Inp	716.90		NIST
Inp	716.60		NIST
Inp	718.90		NIST
Inp	722.00		NIST
Inp	726.00		NIST
Inp	691.00		NIST
Inp	693.00		NIST
Inp	724.00		NIST
Inp	Outlier 673.00		NIST
Inp	701.00		NIST
Inp	693.00		NIST
Inp	713.00		NIST
Inp	703.00		NIST
Inp	718.00		NIST
Inp	701.00		NIST
Inp	726.00		NIST
Inp	699.00		NIST
Inp	721.00		NIST
Inp	715.00		NIST
Inp	717.00		NIST
Inp	Outlier 742.00		NIST
Inp	718.00		NIST
Inp	Outlier 677.00		NIST
Inp	705.00		NIST
Inp	713.00		NIST
Inp	692.00		NIST
Inp	721.00		NIST
I	[919.00; 960.00]
I	938.00		NIST
I	960.00		NIST
I	919.00		NIST
I	944.00		NIST
I	944.00		NIST
I	938.00		NIST
S°liquid	275.98	J/mol×K	NIST
Tboil	[369.00; 372.00]	K
Tboil	371.60	K	KDB
Tboil	371.60	K	NIST
Tboil	371.00	K	NIST
Tboil	371.60	K	NIST
Tboil	370.00 ± 2.00	K	NIST
Tboil	370.00 ± 2.00	K	NIST
Tboil	371.20 ± 0.40	K	NIST
Tboil	Outlier 369.00 ± 3.00	K	NIST
Tboil	Outlier 369.00 ± 4.00	K	NIST
Tboil	371.73 ± 0.40	K	NIST
Tboil	370.20 ± 0.30	K	NIST
Tboil	372.00 ± 3.00	K	NIST
Tboil	371.73 ± 0.25	K	NIST
Tboil	370.70 ± 0.50	K	NIST
Tboil	370.70 ± 0.70	K	NIST
Tboil	371.00 ± 3.00	K	NIST
Tboil	371.30 ± 1.00	K	NIST
Tboil	370.40 ± 1.50	K	NIST
Tboil	371.00 ± 3.00	K	NIST
Tboil	371.00 ± 3.00	K	NIST
Tc	[569.20; 570.10]	K
Tc	570.10	K	KDB
Tc	570.10 ± 0.40	K	NIST
Tc	569.20	K	NIST
Tfus	[157.03; 157.48]	K
Tfus	157.23	K	Aq. Sol...
Tfus	157.40	K	KDB
Tfus	157.48 ± 0.07	K	NIST
Tfus	157.03 ± 0.25	K	NIST
Tfus	157.30 ± 0.50	K	NIST
Tfus	157.30 ± 0.30	K	NIST
Ttriple	[157.46; 157.47]	K
Ttriple	157.46	K	KDB
Ttriple	157.47 ± 0.05	K	NIST
Vc	0.324	m3/kmol	KDB

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[134.39; 180.66]	J/mol×K	[353.78; 544.40]
Cp,gas	134.39	J/mol×K	353.78	Joback Calculated Property
Cp,gas	142.92	J/mol×K	385.55	Joback Calculated Property
Cp,gas	151.11	J/mol×K	417.32	Joback Calculated Property
Cp,gas	158.97	J/mol×K	449.09	Joback Calculated Property
Cp,gas	166.51	J/mol×K	480.86	Joback Calculated Property
Cp,gas	173.74	J/mol×K	512.63	Joback Calculated Property
Cp,gas	180.66	J/mol×K	544.40	Joback Calculated Property
Cp,liquid	[171.39; 172.30]	J/mol×K	[298.15; 300.00]
Cp,liquid	172.30	J/mol×K	298.15	NIST
Cp,liquid	171.39	J/mol×K	300.00	NIST
ΔfusH	[10.46; 10.46]	kJ/mol	[157.47; 157.50]
ΔfusH	10.46	kJ/mol	157.47	NIST
ΔfusH	10.46	kJ/mol	157.50	NIST
ΔfusH	10.46	kJ/mol	157.50	NIST
ΔvapH	[32.20; 35.00]	kJ/mol	[330.00; 371.60]
ΔvapH	34.70 ± 0.10	kJ/mol	330.00	NIST
ΔvapH	33.60 ± 0.10	kJ/mol	350.00	NIST
ΔvapH	35.00	kJ/mol	366.00	NIST
ΔvapH	32.20 ± 0.10	kJ/mol	371.00	NIST
ΔvapH	32.23	kJ/mol	371.60	NIST
Pvap	[23.10; 100.50]	kPa	[328.08; 371.04]
Pvap	23.10	kPa	328.08	Phase e...
Pvap	31.40	kPa	336.10	Phase e...
Pvap	40.90	kPa	343.41	Phase e...
Pvap	52.10	kPa	350.44	Phase e...
Pvap	61.90	kPa	355.65	Phase e...
Pvap	72.60	kPa	360.57	Phase e...
Pvap	81.90	kPa	364.39	Phase e...
Pvap	91.60	kPa	368.05	Phase e...
Pvap	100.50	kPa	371.04	Phase e...
ΔfusS	66.43	J/mol×K	157.47	NIST

Correlations

Property	Value	Unit	Temperature (K)	Source
Pvap	[1.33; 202.64]	kPa	[277.69; 393.34]	The Yaw...
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.54429e+01
Coefficient B			-3.53467e+03
Coefficient C			-4.44580e+01
Temperature range, min.			277.69
Temperature range, max.			393.34
Pvap	1.33	kPa	277.69	Calculated Property
Pvap	2.94	kPa	290.54	Calculated Property
Pvap	6.00	kPa	303.39	Calculated Property
Pvap	11.44	kPa	316.24	Calculated Property
Pvap	20.58	kPa	329.09	Calculated Property
Pvap	35.20	kPa	341.94	Calculated Property
Pvap	57.56	kPa	354.79	Calculated Property
Pvap	90.54	kPa	367.64	Calculated Property
Pvap	137.55	kPa	380.49	Calculated Property
Pvap	202.64	kPa	393.34	Calculated Property
Pvap	[1.65e-06; 3969.92]	kPa	[157.46; 569.00]	KDB Vap...
Equation			ln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A			8.14838e+01
Coefficient B			-7.01146e+03
Coefficient C			-9.97282e+00
Coefficient D			7.38659e-06
Temperature range, min.			157.46
Temperature range, max.			569.00
Pvap	1.65e-06	kPa	157.46	Calculated Property
Pvap	3.29e-03	kPa	203.19	Calculated Property
Pvap	0.29	kPa	248.91	Calculated Property
Pvap	5.08	kPa	294.64	Calculated Property
Pvap	36.53	kPa	340.37	Calculated Property
Pvap	152.32	kPa	386.09	Calculated Property
Pvap	449.90	kPa	431.82	Calculated Property
Pvap	1061.17	kPa	477.55	Calculated Property
Pvap	2156.52	kPa	523.27	Calculated Property
Pvap	3969.92	kPa	569.00	Calculated Property

Similar Compounds

Find more compounds similar to 1-Butanethiol.

Mixtures

• Cyclopentane, methyl- + 1-Butanethiol
• 1-Butanethiol + Pentane, 2,2,4-trimethyl-
• 1-Butanethiol + Water
• 1-Butanethiol + Methyldiethanolamine + Water
• 1-Butanethiol + Propyl mercaptan + Methane
• 1-Butanethiol + Octane + Thiophene, tetrahydro-, 1,1-dioxide

Sources

• KDB Vapor Pressure Data
• Crippen Method
• Infinite dilution activity coefficient measurements by inert gas stripping method
• Phase equilibria on five binary systems containing 1-butanethiol and 3-methylthiophene in hydrocarbons
• Phase Equilibrium Measurements and Modeling of 1-Propanethiol +1-Butanethiol + CH4 in Methane Ternary System at 303, 336, and 368 K and Pressure Up to 9 MPa
• Measurement of Henry s Law Constants and Infinite Dilution Activity Coefficients of Propyl Mercaptan, Butyl Mercaptan, and Dimethyl Sulfide in Methyldiethanolamine (1) + Water (2) with w1 ) 0.50 Using a Gas Stripping Technique
• Liquid-Liquid Equilibria of Ternary Systems Sulfide + Octane + Solvents at Different Temperatures
• Measurement through a Gas Stripping Technique of Henry's Law Constants and Infinite Dilution Activity Coefficients of Propyl Mercaptan, Butyl Mercaptan, and Dimethyl Sulfide in Methyldiethanolamine (1) + Water (2) with w1 = 0.25 and 0.35
• Joback Method
• KDB
• Aqueous Solubility Prediction Method
• Estimated Solubility Method
• McGowan Method
• NIST Webbook
• The Yaws Handbook of Vapor Pressure

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