Butanoic acid (CAS 107-92-6)

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Physical Properties

Property	Value	Unit	Source
ω	0.6830		KDB
T_ig	723.15	K	KDB
Δ_cH°_liquid	-2183.50 ± 0.59	kJ/mol	NIST
μ	1.50	debye	KDB
η	0.0013960	Pa×s	Excess Molar Volumes and Viscosity Deviations of Binary Liquid Mixtures of 1,3-Dioxolane and 1,4-Dioxane with Butyl Acetate, Butyric Acid, Butylamine, and 2-Butanone at 298.15 K
LFL	2.19	% in Air	KDB
UFL	13.40	% in Air	KDB
T_flash,cc	347.59	K	KDB
T_flash,oc	344.26	K	KDB
Δ_fG°	-282.94	kJ/mol	Joback Calculated Property
Δ_fH°_gas	[-476.20; -475.90]	kJ/mol
Δ_fH°_gas	-476.20	kJ/mol	KDB
Δ_fH°_gas	-475.90 ± 4.00	kJ/mol	NIST
Δ_fH°_gas	-475.90 ± 4.00	kJ/mol	NIST
Δ_fH°_liquid	-533.92 ± 0.59	kJ/mol	NIST
Δ_fusH°	11.80	kJ/mol	Joback Calculated Property
Δ_vapH°	60.58	kJ/mol	Relay (1.0) Calculated Property
IE	[10.16; 10.46]	eV
IE	10.17 ± 0.05	eV	NIST
IE	10.17 ± 0.05	eV	NIST
IE	10.24	eV	NIST
IE	10.24	eV	NIST
IE	Outlier 10.46	eV	NIST
IE	10.16 ± 0.05	eV	NIST
IE	10.38	eV	NIST
IE	10.22	eV	NIST
log₁₀WS	-0.19		Aq. Solubility Prediction
logP_oct/wat	0.871		Crippen Calculated Property
McVol	74.660	ml/mol	McGowan Calculated Property
NFPA Fire	2		KDB
NFPA Health	2		KDB
P_c	[3950.00; 4094.07]	kPa
P_c	4030.00	kPa	KDB
P_c	4064.00 ± 60.00	kPa	NIST
P_c	3950.00 ± 50.00	kPa	NIST
P_c	4094.07 ± 90.00	kPa	NIST
I_np	[763.00; 856.00]
I_np	828.00		NIST
I_np	834.00		NIST
I_np	789.00		NIST
I_np	790.00		NIST
I_np	823.00		NIST
I_np	822.00		NIST
I_np	Outlier 850.00		NIST
I_np	840.00		NIST
I_np	824.00		NIST
I_np	831.00		NIST
I_np	Outlier 848.00		NIST
I_np	841.00		NIST
I_np	790.00		NIST
I_np	844.00		NIST
I_np	820.00		NIST
I_np	823.00		NIST
I_np	818.00		NIST
I_np	780.00		NIST
I_np	804.00		NIST
I_np	818.00		NIST
I_np	818.00		NIST
I_np	780.00		NIST
I_np	834.00		NIST
I_np	826.00		NIST
I_np	Outlier 856.00		NIST
I_np	820.00		NIST
I_np	802.00		NIST
I_np	795.00		NIST
I_np	778.00		NIST
I_np	822.00		NIST
I_np	821.00		NIST
I_np	815.00		NIST
I_np	817.00		NIST
I_np	812.00		NIST
I_np	808.00		NIST
I_np	780.00		NIST
I_np	815.00		NIST
I_np	821.00		NIST
I_np	790.00		NIST
I_np	826.00		NIST
I_np	830.00		NIST
I_np	829.00		NIST
I_np	814.00		NIST
I_np	821.00		NIST
I_np	835.00		NIST
I_np	821.00		NIST
I_np	820.00		NIST
I_np	785.00		NIST
I_np	821.00		NIST
I_np	823.00		NIST
I_np	823.00		NIST
I_np	784.00		NIST
I_np	803.00		NIST
I_np	803.00		NIST
I_np	793.00		NIST
I_np	793.00		NIST
I_np	821.00		NIST
I_np	Outlier 856.00		NIST
I_np	Outlier 763.00		NIST
I_np	786.00		NIST
I_np	791.00		NIST
I_np	779.00		NIST
I_np	804.00		NIST
I_np	795.00		NIST
I_np	805.00		NIST
I_np	824.00		NIST
I_np	769.00		NIST
I_np	802.00		NIST
I_np	779.00		NIST
I_np	775.00		NIST
I_np	809.00		NIST
I_np	778.00		NIST
I_np	825.00		NIST
I_np	821.00		NIST
I_np	784.00		NIST
I_np	829.00		NIST
I_np	829.00		NIST
I_np	803.00		NIST
I_np	796.00		NIST
I_np	783.00		NIST
I_np	780.00		NIST
I_np	779.00		NIST
I_np	784.00		NIST
I_np	783.00		NIST
I_np	803.00		NIST
I_np	795.00		NIST
I_np	773.00		NIST
I_np	777.00		NIST
I_np	789.00		NIST
I_np	802.00		NIST
I_np	790.00		NIST
I_np	821.00		NIST
I_np	821.00		NIST
I_np	788.00		NIST
I_np	781.00		NIST
I_np	780.00		NIST
I_np	821.00		NIST
I_np	821.00		NIST
I_np	821.00		NIST
I_np	821.00		NIST
I_np	804.00		NIST
I_np	820.00		NIST
I_np	821.00		NIST
I_np	823.00		NIST
I_np	788.00		NIST
I_np	788.00		NIST
I_np	800.00		NIST
I_np	786.00		NIST
I_np	779.00		NIST
I_np	814.00		NIST
I_np	784.00		NIST
I_np	792.00		NIST
I_np	784.00		NIST
I_np	821.00		NIST
I_np	789.00		NIST
I_np	791.00		NIST
I_np	797.00		NIST
I_np	797.00		NIST
I_np	793.00		NIST
I_np	773.00		NIST
I_np	821.00		NIST
I_np	820.00		NIST
I_np	800.00		NIST
I_np	792.00		NIST
I_np	797.00		NIST
I	[1576.00; 1670.00]
I	Outlier 1576.00		NIST
I	Outlier 1576.00		NIST
I	Outlier 1581.00		NIST
I	1628.00		NIST
I	1637.00		NIST
I	1644.00		NIST
I	1624.00		NIST
I	1653.00		NIST
I	1625.00		NIST
I	Outlier 1576.00		NIST
I	1637.00		NIST
I	1637.00		NIST
I	1620.00		NIST
I	1620.00		NIST
I	1644.00		NIST
I	1614.00		NIST
I	1607.00		NIST
I	1647.00		NIST
I	1613.00		NIST
I	Outlier 1663.00		NIST
I	1625.00		NIST
I	1661.00		NIST
I	1650.00		NIST
I	Outlier 1576.00		NIST
I	1628.00		NIST
I	1652.00		NIST
I	1647.00		NIST
I	1620.00		NIST
I	1599.00		NIST
I	1610.00		NIST
I	1652.00		NIST
I	1647.00		NIST
I	1624.00		NIST
I	1624.00		NIST
I	1633.00		NIST
I	1617.00		NIST
I	1616.00		NIST
I	1637.00		NIST
I	1645.00		NIST
I	1607.00		NIST
I	1613.00		NIST
I	1625.00		NIST
I	1604.00		NIST
I	1616.00		NIST
I	1627.00		NIST
I	1628.00		NIST
I	1624.00		NIST
I	1604.00		NIST
I	1613.00		NIST
I	1606.00		NIST
I	1599.00		NIST
I	1637.00		NIST
I	1623.00		NIST
I	1624.00		NIST
I	Outlier 1666.00		NIST
I	1646.00		NIST
I	1624.00		NIST
I	1623.00		NIST
I	1624.00		NIST
I	1624.00		NIST
I	1623.00		NIST
I	1631.00		NIST
I	1631.00		NIST
I	1635.00		NIST
I	1625.00		NIST
I	1630.00		NIST
I	1630.00		NIST
I	1598.00		NIST
I	1598.00		NIST
I	1606.00		NIST
I	1600.00		NIST
I	1596.00		NIST
I	1599.00		NIST
I	1598.00		NIST
I	1600.00		NIST
I	1598.00		NIST
I	1602.00		NIST
I	1591.00		NIST
I	1627.00		NIST
I	1630.00		NIST
I	1641.00		NIST
I	1620.00		NIST
I	1627.00		NIST
I	1625.00		NIST
I	1622.00		NIST
I	1622.00		NIST
I	1629.00		NIST
I	1657.00		NIST
I	1625.00		NIST
I	1648.00		NIST
I	Outlier 1663.00		NIST
I	1620.00		NIST
I	1650.00		NIST
I	1622.00		NIST
I	1635.00		NIST
I	Outlier 1670.00		NIST
I	1618.00		NIST
I	1650.00		NIST
I	1617.00		NIST
I	1625.00		NIST
I	1618.00		NIST
I	1618.00		NIST
I	1610.00		NIST
I	1625.00		NIST
I	1629.00		NIST
I	1599.00		NIST
I	1611.00		NIST
I	1618.00		NIST
I	1622.00		NIST
I	1627.00		NIST
I	1597.00		NIST
I	1594.00		NIST
I	1599.00		NIST
I	1600.00		NIST
I	1612.00		NIST
I	1633.00		NIST
I	1622.00		NIST
I	1614.00		NIST
I	1621.00		NIST
I	1612.00		NIST
I	1640.00		NIST
I	1648.00		NIST
I	1612.00		NIST
I	1606.00		NIST
I	1626.00		NIST
I	1621.00		NIST
I	1623.00		NIST
I	1626.00		NIST
I	1619.00		NIST
I	1620.00		NIST
I	1646.00		NIST
I	1645.00		NIST
I	1629.00		NIST
I	1625.00		NIST
I	1659.00		NIST
I	1636.00		NIST
I	1634.00		NIST
I	1609.00		NIST
I	1602.00		NIST
I	1602.00		NIST
I	1602.00		NIST
I	1636.00		NIST
I	1614.00		NIST
I	1613.00		NIST
I	1639.00		NIST
I	1650.00		NIST
I	1641.00		NIST
I	1631.00		NIST
I	1616.00		NIST
I	1652.00		NIST
I	1642.00		NIST
I	1631.00		NIST
I	1642.00		NIST
I	1644.00		NIST
I	1647.00		NIST
I	1647.00		NIST
I	1642.00		NIST
I	1647.00		NIST
I	1642.00		NIST
I	1650.00		NIST
I	1622.00		NIST
I	Outlier 1581.00		NIST
I	1646.00		NIST
I	1640.00		NIST
I	1614.00		NIST
I	1646.00		NIST
I	1622.00		NIST
I	1626.00		NIST
I	1620.00		NIST
I	1648.00		NIST
I	1612.00		NIST
I	1612.00		NIST
I	1646.00		NIST
I	1614.00		NIST
I	1588.00		NIST
I	1588.00		NIST
I	1621.00		NIST
I	1644.00		NIST
I	1630.00		NIST
I	1630.00		NIST
I	1644.00		NIST
I	1628.00		NIST
I	1613.00		NIST
I	1616.00		NIST
I	1615.00		NIST
I	1615.00		NIST
I	1631.00		NIST
I	1620.00		NIST
I	1623.00		NIST
I	1623.00		NIST
I	1628.00		NIST
I	1625.00		NIST
I	1661.00		NIST
I	1630.00		NIST
I	1630.00		NIST
I	1598.00		NIST
I	1607.00		NIST
I	1645.00		NIST
I	1628.00		NIST
I	Outlier 1669.00		NIST
I	1628.00		NIST
I	1639.00		NIST
I	1638.00		NIST
I	1616.00		NIST
I	1642.00		NIST
I	1630.00		NIST
I	Outlier 1585.00		NIST
I	1637.00		NIST
I	1636.00		NIST
I	1620.00		NIST
I	1630.00		NIST
I	1625.00		NIST
I	1633.00		NIST
I	1630.00		NIST
I	1642.00		NIST
I	1651.00		NIST
I	1636.00		NIST
I	1636.00		NIST
I	1620.00		NIST
I	1635.00		NIST
I	1652.00		NIST
I	1589.00		NIST
I	1641.00		NIST
I	1627.00		NIST
I	1641.00		NIST
I	1620.00		NIST
I	1623.00		NIST
I	1625.00		NIST
I	1605.00		NIST
I	1622.00		NIST
I	1618.00		NIST
I	1618.00		NIST
I	1634.00		NIST
I	1630.00		NIST
I	1619.00		NIST
I	1588.00		NIST
I	1634.00		NIST
I	1611.00		NIST
I	1619.00		NIST
I	1619.00		NIST
I	1627.00		NIST
I	1602.00		NIST
I	1623.00		NIST
I	1659.00		NIST
I	1634.00		NIST
I	1633.00		NIST
I	1599.00		NIST
I	1600.00		NIST
I	1621.00		NIST
I	1610.00		NIST
I	1619.00		NIST
I	1633.00		NIST
I	1646.00		NIST
I	1627.00		NIST
I	1653.00		NIST
I	1627.00		NIST
I	1596.00		NIST
I	1625.00		NIST
I	1660.00		NIST
I	1639.00		NIST
I	1627.00		NIST
I	1629.00		NIST
I	1628.00		NIST
I	1620.00		NIST
I	1609.00		NIST
I	1627.00		NIST
I	1613.00		NIST
I	1652.00		NIST
I	1610.00		NIST
I	1610.00		NIST
I	1613.00		NIST
I	1623.00		NIST
I	1613.00		NIST
I	1600.00		NIST
I	1614.00		NIST
I	Outlier 1581.00		NIST
I	1630.00		NIST
I	1651.00		NIST
I	1652.00		NIST
I	1620.00		NIST
I	1618.00		NIST
I	1588.00		NIST
I	1627.00		NIST
I	1633.00		NIST
I	1619.00		NIST
I	1613.00		NIST
I	Outlier 1581.00		NIST
I	1648.00		NIST
I	1623.00		NIST
I	1645.00		NIST
I	1634.00		NIST
I	1636.00		NIST
I	1641.00		NIST
I	1631.00		NIST
I	1642.00		NIST
I	1622.00		NIST
I	1612.00		NIST
I	1621.00		NIST
I	1628.00		NIST
I	1625.00		NIST
I	1607.00		NIST
I	1639.00		NIST
I	Outlier 1585.00		NIST
I	Outlier 1576.00		NIST
S°_gas	353.26	J/mol×K	NIST
S°_liquid	[225.30; 255.20]	J/mol×K
S°_liquid	225.30	J/mol×K	NIST
S°_liquid	226.40	J/mol×K	NIST
S°_liquid	255.20	J/mol×K	NIST
T_boil	[391.00; 455.15]	K
T_boil	436.90	K	KDB
T_boil	436.95	K	Determination and correlation of liquid liquid equilibria for the (water + carboxylic acid + dimethyl maleate) ternary systems at T = 298.2K
T_boil	436.70	K	Liquid-liquid equilibria of (water + butyric acid + diethyl succinate or diethyl glutarate or diethyl adipate) ternary systems
T_boil	436.70	K	Ternary liquid-liquid phase equilibria of (water-carboxylic acid-1-undecanol) systems at 298.15 K
T_boil	436.80	K	Ternary phase diagrams for aqueous mixtures of butyric acid with several solvents: experimental and correlated data
T_boil	436.67	K	(Liquid + liquid) equilibria of (water + butyric acid + isoamyl alcohol) ternary system
T_boil	436.67	K	Phase equilibria of liquid (water + butyric acid + oleyl alcohol) ternary system
T_boil	436.70	K	(Liquid + liquid) equilibria of (water + butyric acid + esters) ternary systems
T_boil	435.20	K	NIST
T_boil	436.00	K	NIST
T_boil	436.70 ± 0.20	K	NIST
T_boil	437.00 ± 2.00	K	NIST
T_boil	436.45	K	NIST
T_boil	436.55 ± 0.60	K	NIST
T_boil	436.00 ± 4.00	K	NIST
T_boil	436.15 ± 0.20	K	NIST
T_boil	433.65 ± 2.00	K	NIST
T_boil	437.25 ± 0.60	K	NIST
T_boil	437.15 ± 0.50	K	NIST
T_boil	436.55 ± 0.50	K	NIST
T_boil	436.85 ± 1.00	K	NIST
T_boil	436.65 ± 1.00	K	NIST
T_boil	435.50 ± 1.00	K	NIST
T_boil	436.55 ± 0.50	K	NIST
T_boil	436.40 ± 0.30	K	NIST
T_boil	437.15 ± 0.60	K	NIST
T_boil	437.15 ± 1.00	K	NIST
T_boil	434.75 ± 1.00	K	NIST
T_boil	437.20 ± 0.60	K	NIST
T_boil	435.65 ± 2.00	K	NIST
T_boil	437.15 ± 0.30	K	NIST
T_boil	437.15 ± 0.30	K	NIST
T_boil	435.15 ± 2.00	K	NIST
T_boil	435.15 ± 1.00	K	NIST
T_boil	435.55 ± 0.40	K	NIST
T_boil	437.00 ± 0.60	K	NIST
T_boil	437.20 ± 0.50	K	NIST
T_boil	434.55 ± 1.00	K	NIST
T_boil	437.15 ± 2.00	K	NIST
T_boil	433.65 ± 3.00	K	NIST
T_boil	435.60 ± 0.60	K	NIST
T_boil	436.70 ± 0.50	K	NIST
T_boil	Outlier 391.00 ± 0.50	K	NIST
T_boil	435.65 ± 1.00	K	NIST
T_boil	434.15 ± 2.00	K	NIST
T_boil	433.25 ± 1.00	K	NIST
T_boil	434.90 ± 1.00	K	NIST
T_boil	433.20 ± 2.00	K	NIST
T_boil	436.35 ± 0.60	K	NIST
T_boil	433.65 ± 2.00	K	NIST
T_boil	436.15 ± 0.50	K	NIST
T_boil	436.25 ± 1.00	K	NIST
T_boil	436.65 ± 0.50	K	NIST
T_boil	Outlier 455.15 ± 2.00	K	NIST
T_boil	435.00 ± 3.00	K	NIST
T_boil	434.65 ± 1.00	K	NIST
T_boil	435.15 ± 2.00	K	NIST
T_boil	435.50 ± 0.60	K	NIST
T_boil	435.65 ± 0.60	K	NIST
T_boil	436.00 ± 2.00	K	NIST
T_boil	435.45 ± 1.00	K	NIST
T_boil	435.50 ± 1.00	K	NIST
T_boil	435.90 ± 1.00	K	NIST
T_boil	434.15 ± 2.00	K	NIST
T_boil	430.15 ± 5.00	K	NIST
T_boil	430.15 ± 5.00	K	NIST
T_c	[615.20; 631.77]	K
T_c	624.00	K	KDB
T_c	615.20 ± 2.00	K	NIST
T_c	624.00 ± 1.00	K	NIST
T_c	631.77 ± 2.50	K	NIST
T_c	627.90 ± 6.00	K	NIST
T_fus	[266.68; 268.65]	K
T_fus	266.68	K	Aq. Solubility Prediction
T_fus	267.40	K	KDB
T_fus	268.65	K	Differential scanning calorimetry determination of phase diagrams and water activities of aqueous carboxylic acid solutions
T_fus	267.60 ± 0.20	K	NIST
T_fus	267.95	K	NIST
T_fus	267.80 ± 0.50	K	NIST
T_fus	267.89 ± 0.05	K	NIST
T_fus	267.00 ± 1.50	K	NIST
T_triple	[267.40; 268.03]	K
T_triple	268.03	K	KDB
T_triple	267.97 ± 0.05	K	NIST
T_triple	268.03 ± 0.05	K	NIST
T_triple	267.40 ± 0.20	K	NIST
V_c	0.290	m³/kmol	KDB
Z_c	0.2252590		KDB

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
C_p,gas	[146.10; 181.81]	J/mol×K	[436.97; 610.84]

C_p,gas	146.10	J/mol×K	436.97	Joback Calculated Property
C_p,gas	152.68	J/mol×K	465.95	Joback Calculated Property
C_p,gas	159.00	J/mol×K	494.93	Joback Calculated Property
C_p,gas	165.07	J/mol×K	523.90	Joback Calculated Property
C_p,gas	170.89	J/mol×K	552.88	Joback Calculated Property
C_p,gas	176.47	J/mol×K	581.86	Joback Calculated Property
C_p,gas	181.81	J/mol×K	610.84	Joback Calculated Property
C_p,liquid	[176.10; 178.00]	J/mol×K	[290.70; 298.15]
C_p,liquid	176.10	J/mol×K	290.70	NIST
C_p,liquid	176.10	J/mol×K	298.00	NIST
C_p,liquid	177.70	J/mol×K	298.15	NIST
C_p,liquid	178.00	J/mol×K	298.15	NIST
η	[0.0002812; 0.0318897]	Pa×s	[245.59; 436.97]

η	0.0318897	Pa×s	245.59	Joback Calculated Property
η	0.0092130	Pa×s	277.49	Joback Calculated Property
η	0.0034383	Pa×s	309.38	Joback Calculated Property
η	0.0015427	Pa×s	341.28	Joback Calculated Property
η	0.0007939	Pa×s	373.18	Joback Calculated Property
η	0.0004536	Pa×s	405.07	Joback Calculated Property
η	0.0002812	Pa×s	436.97	Joback Calculated Property
Δ_fusH	[11.07; 11.59]	kJ/mol	[264.70; 268.00]
Δ_fusH	11.07	kJ/mol	264.70	NIST
Δ_fusH	11.07	kJ/mol	264.70	NIST
Δ_fusH	11.07	kJ/mol	267.40	NIST
Δ_fusH	11.59	kJ/mol	268.00	NIST
Δ_subH	76.00 ± 1.50	kJ/mol	246.50	NIST
Δ_vapH	[47.70; 58.50]	kJ/mol	[293.00; 514.50]

Δ_vapH	58.50 ± 0.30	kJ/mol	293.00	NIST
Δ_vapH	51.10	kJ/mol	329.50	NIST
Δ_vapH	52.00	kJ/mol	399.50	NIST
Δ_vapH	53.20	kJ/mol	404.00	NIST
Δ_vapH	52.50	kJ/mol	409.50	NIST
Δ_vapH	50.30	kJ/mol	410.00	NIST
Δ_vapH	47.70	kJ/mol	514.50	NIST
P_vap	[0.01; 100.04]	kPa	[273.15; 436.05]

P_vap	0.01	kPa	273.15	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	0.03	kPa	283.15	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	0.07	kPa	293.15	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	0.07	kPa	293.29	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	0.11	kPa	298.15	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	0.11	kPa	298.25	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	0.15	kPa	303.15	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	0.15	kPa	303.28	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	0.31	kPa	313.15	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	0.32	kPa	313.22	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	0.61	kPa	323.15	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	0.62	kPa	323.20	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	1.14	kPa	333.15	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	1.15	kPa	333.18	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	2.06	kPa	343.15	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	2.07	kPa	343.18	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	3.58	kPa	353.10	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	3.59	kPa	353.15	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	5.97	kPa	363.08	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	6.09	kPa	363.15	Isothermal Vapor-Liquid Equilibria and Excess Enthalpy Data for the Binary System (Butyric Acid + Toluene)
P_vap	9.38	kPa	373.10	Vapor-Liquid Equilibria on Four Binary Systems: 2-Phenylpropionaldehyde + Phenol, Propylene Glycol Monomethyl Ether + Nitroethane, Dimethyl Ether + Propylene, and N-Butyric Acid + Propionic Acid
P_vap	14.56	kPa	383.55	Subatmospheric Vapor Pressure Curves for Propionic Acid, Butyric Acid, Isobutyric Acid, Valeric Acid, Isovaleric Acid, Hexanoic Acid, and Heptanoic Acid
P_vap	19.58	kPa	390.87	Subatmospheric Vapor Pressure Curves for Propionic Acid, Butyric Acid, Isobutyric Acid, Valeric Acid, Isovaleric Acid, Hexanoic Acid, and Heptanoic Acid
P_vap	29.65	kPa	401.32	Subatmospheric Vapor Pressure Curves for Propionic Acid, Butyric Acid, Isobutyric Acid, Valeric Acid, Isovaleric Acid, Hexanoic Acid, and Heptanoic Acid
P_vap	39.72	kPa	409.00	Subatmospheric Vapor Pressure Curves for Propionic Acid, Butyric Acid, Isobutyric Acid, Valeric Acid, Isovaleric Acid, Hexanoic Acid, and Heptanoic Acid
P_vap	45.85	kPa	413.15	Vapor-Liquid Equilibria on Four Binary Systems: 2-Phenylpropionaldehyde + Phenol, Propylene Glycol Monomethyl Ether + Nitroethane, Dimethyl Ether + Propylene, and N-Butyric Acid + Propionic Acid
P_vap	49.79	kPa	415.00	Subatmospheric Vapor Pressure Curves for Propionic Acid, Butyric Acid, Isobutyric Acid, Valeric Acid, Isovaleric Acid, Hexanoic Acid, and Heptanoic Acid
P_vap	59.86	kPa	420.22	Subatmospheric Vapor Pressure Curves for Propionic Acid, Butyric Acid, Isobutyric Acid, Valeric Acid, Isovaleric Acid, Hexanoic Acid, and Heptanoic Acid
P_vap	69.92	kPa	424.81	Subatmospheric Vapor Pressure Curves for Propionic Acid, Butyric Acid, Isobutyric Acid, Valeric Acid, Isovaleric Acid, Hexanoic Acid, and Heptanoic Acid
P_vap	79.99	kPa	428.96	Subatmospheric Vapor Pressure Curves for Propionic Acid, Butyric Acid, Isobutyric Acid, Valeric Acid, Isovaleric Acid, Hexanoic Acid, and Heptanoic Acid
P_vap	90.07	kPa	432.61	Subatmospheric Vapor Pressure Curves for Propionic Acid, Butyric Acid, Isobutyric Acid, Valeric Acid, Isovaleric Acid, Hexanoic Acid, and Heptanoic Acid
P_vap	95.10	kPa	434.51	Subatmospheric Vapor Pressure Curves for Propionic Acid, Butyric Acid, Isobutyric Acid, Valeric Acid, Isovaleric Acid, Hexanoic Acid, and Heptanoic Acid
P_vap	100.04	kPa	436.05	Subatmospheric Vapor Pressure Curves for Propionic Acid, Butyric Acid, Isobutyric Acid, Valeric Acid, Isovaleric Acid, Hexanoic Acid, and Heptanoic Acid
n₀	[1.39394; 1.39820]		[293.15; 303.15]

n₀	1.39740		293.15	Liquid Liquid Equilibrium Data of Water + Butyric Acid + {Butanal or n-Butanol} Ternary Systems at 293.15, 308.15, and 323.15 K
n₀	1.39820		293.15	Vapour-liquid equilibrium of carboxylic acid alcohol binary systems:2-Propanol + butyric acid, 2-butanol + butyric acid and 2-methyl-1-propanol + butyric acid
n₀	1.39820		293.15	(Liquid + liquid) equilibria of (water + butyric acid + cyclohexyl acetate) ternary system
n₀	1.39750		293.15	(Liquid + liquid) equilibria of (water + butyric acid + dibasic esters) ternary systems
n₀	1.39770		293.20	Experimental and Correlational Study of Phase Equilibria in Aqueous Solutions of Formic and Butyric Acids with Isoamyl Acetate and Methyl Isoamyl Ketone at T = 298.15 K
n₀	1.39599		298.15	Refractive Index, Surface Tension, and Density of Aqueous Mixtures of Carboxylic Acids at 298.15 K
n₀	1.39600		298.15	Liquid-Liquid Equilibria for Ternary Mixtures of gamma-Valerolactone + n-Tetradecane + (Butanoic Acid or Hexanoic Acid or Methyl Myristate) at 298.15 K
n₀	1.39770		298.20	Tie line data for the (water + butyric acid + n-butyl alcohol or amyl alcohol) at T = (298.2, 308.2, and 318.2) K and (water + butyric acid + isoamyl alcohol) at T = 298.2 K
n₀	1.39760		298.20	Ternary liquid liquid equilibrium data for the (water + butyric acid + n-hexane or n-hexanol) systems at T = (298.2, 308.2, and 318.2) K
n₀	1.39770		298.20	Solubility and tie line data for the aqueous solutions of butyric acid with 1-octanol and 2-ethyl-1-hexanol at various temperatures
n₀	1.39760		298.20	(Liquid + liquid) equilibria of aqueous solutions of butyric acid with n-heptane and toluene at T = (298.2, 308.2, and 318.2) K
n₀	1.39750		298.20	(Liquid + liquid) equilibria of the (water + butyric acid + dodecanol) ternary system
n₀	1.39394		303.15	Liquid-liquid equilibria for ternary mixtures of 1-alkyl-3-methyl imidazolium bis{(trifluoromethyl)sulfonyl}imides, n-hexane and organic compounds at 303.15 K and 0.1 MPa
n₀	1.39470		303.15	Phase equilibria measurements of ternary mixtures (sulfolane + a carboxylic acid + pentane) at 303.15 K
n₀	1.39470		303.15	Liquid liquid equilibria measurements of ternary systems (acetonitrile + a carboxylic acid + dodecane) at 303.15 K
ρ_l	[937.91; 958.00]	kg/m³	[293.00; 313.15]

ρ_l	958.00	kg/m³	293.00	KDB
ρ_l	957.78	kg/m³	293.15	Influence of alkyl group and temperature on thermophysical properties of carboxylic acid and their binary mixtures
ρ_l	957.80	kg/m³	293.15	Effect of temperature on density, sound velocity, refractive index and their derived properties for the binary systems (heptanoic acid + propanoic or butanoic acids)
ρ_l	957.78	kg/m³	293.15	Density, speed of sound, and refractive index measurements for the binary systems (butanoic acid + propanoic acid, or 2-methyl-propanoic acid) at T = (293.15 to 313.15) K
ρ_l	957.80	kg/m³	293.20	Modeling extraction equilibria of butyric acid distributed between water and tri-n-butyl amine/diluent or tri-n-butyl phosphate/diluent system: Extension of the LSER approach
ρ_l	952.81	kg/m³	298.15	Density, speed of sound, and refractive index measurements for the binary systems (butanoic acid + propanoic acid, or 2-methyl-propanoic acid) at T = (293.15 to 313.15) K
ρ_l	953.05	kg/m³	298.15	Liquid-liquid equilibria and density data for pseudoternary systems of refined soybean oil + (hexanal, or heptanal, or butyric acid, or valeric acid, or caproic acid, or caprylic acid) + dimethyl sulfoxide at 298.15 K
ρ_l	952.68	kg/m³	298.15	Liquid Phase Equilibria of Aqueous Mixtures of Carboxylic Acids (C1-C4) with Ethylbenzene: Thermodynamic and Mathematical Modeling
ρ_l	952.10	kg/m³	298.15	Tie-Line Data for Aqueous Mixtures of Butyric Acid with Diisopropyl Ether at Various Temperatures
ρ_l	952.81	kg/m³	298.15	Influence of alkyl group and temperature on thermophysical properties of carboxylic acid and their binary mixtures
ρ_l	952.80	kg/m³	298.15	Effect of temperature on density, sound velocity, refractive index and their derived properties for the binary systems (heptanoic acid + propanoic or butanoic acids)
ρ_l	952.81	kg/m³	298.20	Phase equilibria of (water + butyric acid + butyl acetate) ternary systems at different temperatures
ρ_l	952.10	kg/m³	298.20	Phase equilibria of (water + propionic acid or butyric acid + 2-methoxy- 2-methylpropane) ternary systems at 298.2 K and 323.2 K
ρ_l	952.80	kg/m³	298.20	Investigation of Ternary Phase Diagrams of (Water + Butyric Acid + Phenyl Acetate) at Different Temperatures
ρ_l	947.90	kg/m³	303.15	Effect of temperature on density, sound velocity, refractive index and their derived properties for the binary systems (heptanoic acid + propanoic or butanoic acids)
ρ_l	947.84	kg/m³	303.15	Density, speed of sound, and refractive index measurements for the binary systems (butanoic acid + propanoic acid, or 2-methyl-propanoic acid) at T = (293.15 to 313.15) K
ρ_l	947.94	kg/m³	303.15	Influence of alkyl group and temperature on thermophysical properties of carboxylic acid and their binary mixtures
ρ_l	942.90	kg/m³	308.15	Effect of temperature on density, sound velocity, refractive index and their derived properties for the binary systems (heptanoic acid + propanoic or butanoic acids)
ρ_l	942.92	kg/m³	308.15	Influence of alkyl group and temperature on thermophysical properties of carboxylic acid and their binary mixtures
ρ_l	942.87	kg/m³	308.15	Density, speed of sound, and refractive index measurements for the binary systems (butanoic acid + propanoic acid, or 2-methyl-propanoic acid) at T = (293.15 to 313.15) K
ρ_l	938.10	kg/m³	313.15	Effect of temperature on density, sound velocity, refractive index and their derived properties for the binary systems (heptanoic acid + propanoic or butanoic acids)
ρ_l	938.05	kg/m³	313.15	Influence of alkyl group and temperature on thermophysical properties of carboxylic acid and their binary mixtures
ρ_l	937.91	kg/m³	313.15	Density, speed of sound, and refractive index measurements for the binary systems (butanoic acid + propanoic acid, or 2-methyl-propanoic acid) at T = (293.15 to 313.15) K
Δ_fusS	41.40	J/mol×K	267.40	NIST
γ	[0.03; 0.03]	N/m	[293.15; 308.15]
γ	0.03	N/m	293.15	Apparent Molar Volume and Surface Tension of Dilute Aqueous Solutions of Carboxylic Acids
γ	0.03	N/m	298.15	Apparent Molar Volume and Surface Tension of Dilute Aqueous Solutions of Carboxylic Acids
γ	0.03	N/m	303.15	Apparent Molar Volume and Surface Tension of Dilute Aqueous Solutions of Carboxylic Acids
γ	0.03	N/m	308.15	Apparent Molar Volume and Surface Tension of Dilute Aqueous Solutions of Carboxylic Acids

Correlations

Property	Value	Unit	Temperature (K)	Source
P_vap	[1.33; 202.62]	kPa	[332.48; 460.54]	The Yaws Handbook of Vapor Pressure
Equation			ln(Pvp) = A + B/(T + C)
Coefficient A			1.57477e+01
Coefficient B			-4.11288e+03
Coefficient C			-6.64480e+01
Temperature range, min.			332.48
Temperature range, max.			460.54

P_vap	1.33	kPa	332.48	Calculated Property
P_vap	2.92	kPa	346.71	Calculated Property
P_vap	5.94	kPa	360.94	Calculated Property
P_vap	11.31	kPa	375.17	Calculated Property
P_vap	20.33	kPa	389.40	Calculated Property
P_vap	34.80	kPa	403.62	Calculated Property
P_vap	57.03	kPa	417.85	Calculated Property
P_vap	89.93	kPa	432.08	Calculated Property
P_vap	137.06	kPa	446.31	Calculated Property
P_vap	202.62	kPa	460.54	Calculated Property
P_vap	[9.65e-03; 4278.67]	kPa	[267.95; 628.00]	KDB Vapor Pressure Data
Equation			ln(Pvp) = A + B/T + Cln(T) + DT^2
Coefficient A			9.87911e+01
Coefficient B			-9.90286e+03
Coefficient C			-1.19698e+01
Coefficient D			6.22559e-06
Temperature range, min.			267.95
Temperature range, max.			628.00

P_vap	9.65e-03	kPa	267.95	Calculated Property
P_vap	0.26	kPa	307.96	Calculated Property
P_vap	2.82	kPa	347.96	Calculated Property
P_vap	17.32	kPa	387.97	Calculated Property
P_vap	71.27	kPa	427.97	Calculated Property
P_vap	220.97	kPa	467.98	Calculated Property
P_vap	558.77	kPa	507.98	Calculated Property
P_vap	1217.47	kPa	547.99	Calculated Property
P_vap	2376.91	kPa	587.99	Calculated Property
P_vap	4278.67	kPa	628.00	Calculated Property

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Chemical Properties of Butanoic acid (CAS 107-92-6)