Chemical Properties of 2-Butenal (CAS 4170-30-3)

InChI

InChI=1S/C4H6O/c1-2-3-4-5/h2-4H,1H3

InChI Key

MLUCVPSAIODCQM-UHFFFAOYSA-N

Formula

C4H6O

SMILES

CC=CC=O

Molecular Weight¹

70.09

CAS

4170-30-3

Other Names

• 1-Formylpropene
• 2-Butenaldehyde
• BETA-METHYLACROLEIN
• But-2-enal
• Crotonal
• Crotonaldehyde
• Crotonic aldehyde
• Crotylaldehyde
• Krotonaldehyd
• NSC 56354
• Propylene aldehyde
• Rcra waste number U053
• TRANS-2-BUTENAL
• UN 1143
• «beta»-Methylacrolein
• «beta»-Methylacrolein

• PAff : Proton affinity (kJ/mol).
• BasG : Gas basicity (kJ/mol).
• Δ_cH°_liquid : Standard liquid enthalpy of combustion (kJ/mol).
• C_p,gas : Ideal gas heat capacity (J/mol×K).
• η : Dynamic viscosity (Pa×s).
• Δ_fG° : Standard Gibbs free energy of formation (kJ/mol).
• Δ_fH°_gas : Enthalpy of formation at standard conditions (kJ/mol).
• Δ_fH°_liquid : Liquid phase 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).
• 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.
• NFPA Safety : NFPA Safety Rating.
• P_c : Critical Pressure (kPa).
• ρ_c : Critical density (kg/m³).
• I_np : Non-polar retention indices.
• I : 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).
• ¹: Molecular weight from the IUPAC atomic weights tables.

Physical Properties

Property	Value	Unit	Source
PAff	830.80	kJ/mol	NIST
BasG	799.00	kJ/mol	NIST
ΔcH°liquid	[-2287.40; -2284.70]	kJ/mol
ΔcH°liquid	-2284.70 ± 2.30	kJ/mol	NIST
ΔcH°liquid	-2287.40 ± 0.40	kJ/mol	NIST
ΔfG°	-36.50	kJ/mol	Joback Calculated Property
ΔfH°gas	[-109.70; -100.50]	kJ/mol
ΔfH°gas	-109.70 ± 2.40	kJ/mol	NIST
ΔfH°gas	-106.90	kJ/mol	NIST
ΔfH°gas	-100.50 ± 1.50	kJ/mol	NIST
ΔfH°liquid	[-146.90; -138.60]	kJ/mol
ΔfH°liquid	-146.90 ± 2.40	kJ/mol	NIST
ΔfH°liquid	-144.10 ± 0.40	kJ/mol	NIST
ΔfH°liquid	-138.60 ± 1.90	kJ/mol	NIST
ΔfusH°	8.61	kJ/mol	Joback Calculated Property
ΔvapH°	[37.20; 38.10]	kJ/mol
ΔvapH°	37.30 ± 0.40	kJ/mol	NIST
ΔvapH°	37.20	kJ/mol	NIST
ΔvapH°	37.30 ± 0.40	kJ/mol	NIST
ΔvapH°	38.00 ± 0.80	kJ/mol	NIST
ΔvapH°	38.10	kJ/mol	NIST
IE	[9.73; 9.86]	eV
IE	9.75	eV	NIST
IE	9.73 ± 0.01	eV	NIST
IE	9.86 ± 0.03	eV	NIST
log10WS	[0.32; 0.32]
log10WS	0.32		Aq. Sol...
log10WS	0.32		Estimat...
logPoct/wat	0.761		Crippen Calculated Property
McVol	64.490	ml/mol	McGowan Calculated Property
NFPA Fire	3		KDB
NFPA Health	3		KDB
NFPA Safety	2		KDB
Pc	5496.90 ± 1.00	kPa	NIST
ρc	293.00 ± 2.80	kg/m3	NIST
Inp	[600.00; 657.00]
Inp	627.00		NIST
Inp	623.00		NIST
Inp	624.00		NIST
Inp	626.00		NIST
Inp	615.00		NIST
Inp	621.00		NIST
Inp	631.00		NIST
Inp	619.00		NIST
Inp	630.00		NIST
Inp	647.00		NIST
Inp	632.00		NIST
Inp	645.00		NIST
Inp	618.00		NIST
Inp	657.00		NIST
Inp	657.00		NIST
Inp	627.00		NIST
Inp	640.00		NIST
Inp	623.00		NIST
Inp	648.00		NIST
Inp	629.00		NIST
Inp	655.00		NIST
Inp	622.00		NIST
Inp	640.00		NIST
Inp	610.00		NIST
Inp	Outlier 600.00		NIST
Inp	636.00		NIST
Inp	630.00		NIST
Inp	640.00		NIST
Inp	627.00		NIST
Inp	621.00		NIST
I	[1024.00; 1086.20]
I	Outlier 1086.20		NIST
I	1061.50		NIST
I	1069.30		NIST
I	1077.10		NIST
I	1059.00		NIST
I	1051.00		NIST
I	1042.00		NIST
I	1042.00		NIST
I	1050.00		NIST
I	1024.00		NIST
I	1041.00		NIST
I	1043.00		NIST
I	1056.00		NIST
I	1049.00		NIST
I	1042.00		NIST
I	1042.00		NIST
I	1047.00		NIST
I	1038.00		NIST
I	1051.00		NIST
I	1056.00		NIST
I	1038.00		NIST
I	1041.00		NIST
I	Outlier 1086.20		NIST
Tboil	[363.15; 377.20]	K
Tboil	375.50 ± 0.02	K	NIST
Tboil	375.50 ± 0.60	K	NIST
Tboil	363.15 ± 5.00	K	NIST
Tboil	377.20 ± 0.30	K	NIST
Tboil	375.30 ± 1.50	K	NIST
Tc	601.98 ± 0.10	K	NIST
Tfus	[196.70; 199.15]	K
Tfus	196.95	K	Aq. Sol...
Tfus	198.00 ± 5.00	K	NIST
Tfus	196.70 ± 0.50	K	NIST
Tfus	199.15 ± 1.50	K	NIST
Vc	0.257	m3/kmol	Joback Calculated Property

Temperature Dependent Properties

Property	Value	Unit	Temperature (K)	Source
Cp,gas	[97.86; 132.55]	J/mol×K	[343.74; 526.38]
Cp,gas	97.86	J/mol×K	343.74	Joback Calculated Property
Cp,gas	104.42	J/mol×K	374.18	Joback Calculated Property
Cp,gas	110.66	J/mol×K	404.62	Joback Calculated Property
Cp,gas	116.57	J/mol×K	435.06	Joback Calculated Property
Cp,gas	122.18	J/mol×K	465.50	Joback Calculated Property
Cp,gas	127.50	J/mol×K	495.94	Joback Calculated Property
Cp,gas	132.55	J/mol×K	526.38	Joback Calculated Property
η	[0.0002298; 0.0027814]	Pa×s	[171.76; 343.74]
η	0.0027814	Pa×s	171.76	Joback Calculated Property
η	0.0013638	Pa×s	200.42	Joback Calculated Property
η	0.0007992	Pa×s	229.09	Joback Calculated Property
η	0.0005275	Pa×s	257.75	Joback Calculated Property
η	0.0003783	Pa×s	286.41	Joback Calculated Property
η	0.0002883	Pa×s	315.08	Joback Calculated Property
η	0.0002298	Pa×s	343.74	Joback Calculated Property
ΔvapH	[35.10; 38.80]	kJ/mol	[325.00; 341.00]
ΔvapH	38.80	kJ/mol	325.00	NIST
ΔvapH	35.10 ± 0.50	kJ/mol	332.00	NIST
ΔvapH	37.30	kJ/mol	340.50	NIST
ΔvapH	36.80	kJ/mol	341.00	NIST

Similar Compounds

Find more compounds similar to 2-Butenal.

Sources

• Crippen Method
• Joback Method
• KDB
• Aqueous Solubility Prediction Method
• Estimated Solubility Method
• McGowan Method
• NIST Webbook

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