Acetic acid (data page)

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This page provides supplementary chemical data on COMPOUND.

Contents

1 Material Safety Data Sheet
2 Structure and properties
3 Thermodynamic properties
4 Spectral data
5 References
6 Material Safety Data Sheet
7 Structure and properties
8 Thermodynamic properties
9 Spectral data
10 References

Material Safety Data Sheet

The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as [SIRI], and follow its directions.

Structure and properties

Structure and properties
Index of refraction, n_D ?
Abbe number ?
Dielectric constant, ε_r ? ε₀ at ? °C
Bond strength ?
Bond length ?
Bond angle ?
Magnetic susceptibility ?

Structure and properties
Index of refraction, n_D	?
Abbe number	?
Dielectric constant, ε_r	? ε₀ at ? °C
Bond strength	?
Bond length	?
Bond angle	?
Magnetic susceptibility	?

Thermodynamic properties

Phase behavior
Triple point ? K (? °C), ? Pa
Critical point ? K (? °C), ? Pa
Std enthalpy change
of fusion, Δ_fusH^o ? kJ/mol
Std entropy change
of fusion, Δ_fusS^o ? J/(mol·K)
Std enthalpy change
of vaporization, Δ_vapH^o ? kJ/mol
Std entropy change
of vaporization, Δ_vapS^o ? J/(mol·K)
Solid properties
Std enthalpy change
of formation, Δ_fH^o_solid ? kJ/mol
Standard molar entropy,
S^o_solid ? J/(mol K)
Heat capacity, c_p ? J/(mol K)
Liquid properties
Std enthalpy change
of formation, Δ_fH^o_liquid ? kJ/mol
Standard molar entropy,
S^o_liquid ? J/(mol K)
Heat capacity, c_p ? J/(mol K)
Gas properties
Std enthalpy change
of formation, Δ_fH^o_gas ? kJ/mol
Standard molar entropy,
S^o_gas ? J/(mol K)
Heat capacity, c_p ? J/(mol K)

Phase behavior
Triple point	? K (? °C), ? Pa
Critical point	? K (? °C), ? Pa
Std enthalpy change of fusion, Δ_fusH^o	? kJ/mol
Std entropy change of fusion, Δ_fusS^o	? J/(mol·K)
Std enthalpy change of vaporization, Δ_vapH^o	? kJ/mol
Std entropy change of vaporization, Δ_vapS^o	? J/(mol·K)
Solid properties
Std enthalpy change of formation, Δ_fH^o_solid	? kJ/mol
Standard molar entropy, S^o_solid	? J/(mol K)
Heat capacity, c_p	? J/(mol K)
Liquid properties
Std enthalpy change of formation, Δ_fH^o_liquid	? kJ/mol
Standard molar entropy, S^o_liquid	? J/(mol K)
Heat capacity, c_p	? J/(mol K)
Gas properties
Std enthalpy change of formation, Δ_fH^o_gas	? kJ/mol
Standard molar entropy, S^o_gas	? J/(mol K)
Heat capacity, c_p	? J/(mol K)

Spectral data

UV-Vis
λ_max nm
Extinction coefficient, ε ?
IR
Major absorption bands cm⁻¹
NMR
Proton NMR
Carbon-13 NMR
Other NMR data
MS
Masses of
main fragments

UV-Vis
λ_max	nm
Extinction coefficient, ε	?
IR
Major absorption bands	cm⁻¹
NMR
Proton NMR
Carbon-13 NMR
Other NMR data
MS
Masses of main fragments

References

Except where noted otherwise, data relate to standard ambient temperature and pressure.

[Chemical infoboxDisclaimer] applies.

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This page provides supplementary chemical data on acetic acid.

Material Safety Data Sheet

Structure and properties

Structure and properties
Index of refraction, n_D 1.3716
Dielectric constant, ε_r ? ε₀ at ? °C
Dielectric constant, ε 6.19 C²/(N·m²) at 25 °C
Bond strength ?
Bond length ?
Bond angle ?
Magnetic susceptibility ?

Structure and properties
Index of refraction, n_D	1.3716
Dielectric constant, ε_r	? ε₀ at ? °C
Dielectric constant, ε	6.19 C²/(N·m²) at 25 °C
Bond strength	?
Bond length	?
Bond angle	?
Magnetic susceptibility	?

Thermodynamic properties

Phase behavior
Triple point 289.8 K (16.7 °C), ? Pa
Critical point 593 K (320 °C), 57.8 bar
Eutectic point with water -26.7 °C
Std enthalpy change
of fusionΔ_fusH^o +11.7 kJ/mol
Std entropy change
of fusionΔ_fusS^o 40.5 J/(mol·K)
Std enthalpy change
of vaporizationΔ_vapH^o +23.7 kJ/mol
Std entropy change
of vaporizationΔ_vapS^o ? J/(mol·K)
Solid properties
Std enthalpy change
of formation Δ_fH^o_solid ? kJ/mol
Standard molar entropy
S^o_solid ? J/(mol K)
Heat capacity c_p ? J/(mol K)
Liquid properties
Std enthalpy change
of formation Δ_fH^o_liquid −483.5 kJ/mol
Standard molar entropy
S^o_liquid 158.0 J/(mol K)
Heat capacity c_p 123.1 J/(mol K)
Gas properties
Std enthalpy change
of formation Δ_fH^o_gas ? kJ/mol
Standard molar entropy
S^o_gas 282.8 J/(mol K)
Heat capacity c_p 63.4 J/(mol K)

Phase behavior
Triple point	289.8 K (16.7 °C), ? Pa
Critical point	593 K (320 °C), 57.8 bar
Eutectic point with water	-26.7 °C
Std enthalpy change of fusionΔ_fusH^o	+11.7 kJ/mol
Std entropy change of fusionΔ_fusS^o	40.5 J/(mol·K)
Std enthalpy change of vaporizationΔ_vapH^o	+23.7 kJ/mol
Std entropy change of vaporizationΔ_vapS^o	? J/(mol·K)
Solid properties
Std enthalpy change of formation Δ_fH^o_solid	? kJ/mol
Standard molar entropy S^o_solid	? J/(mol K)
Heat capacity c_p	? J/(mol K)
Liquid properties
Std enthalpy change of formation Δ_fH^o_liquid	−483.5 kJ/mol
Standard molar entropy S^o_liquid	158.0 J/(mol K)
Heat capacity c_p	123.1 J/(mol K)
Gas properties
Std enthalpy change of formation Δ_fH^o_gas	? kJ/mol
Standard molar entropy S^o_gas	282.8 J/(mol K)
Heat capacity c_p	63.4 J/(mol K)

Spectral data

UV-Vis
λ_max 207 nm (gas phase)
Extinction coefficient, ε ?
IR
Major absorption bands 2937, 1758, 1714, 1414
1294, 629, 481 cm⁻¹
NMR
Proton NMR δ CDCl₃ 2.10 (3H), 11.42 (1H)
Carbon-13 NMR δ CDCl₃ 20.8, 178.1
Other NMR data
MS
Masses of
main fragments 60 (75%), 45 (90%),
43 (100%), 42 (13%), 15 (17%)

UV-Vis
λ_max	207 nm (gas phase)
Extinction coefficient, ε	?
IR
Major absorption bands	2937, 1758, 1714, 1414 1294, 629, 481 cm⁻¹
NMR
Proton NMR	δ CDCl₃ 2.10 (3H), 11.42 (1H)
Carbon-13 NMR	δ CDCl₃ 20.8, 178.1
Other NMR data
MS
Masses of main fragments	60 (75%), 45 (90%), 43 (100%), 42 (13%), 15 (17%)

References

[NIST Chemistry WebBook]
[SDBS spectral database]
Orlando, John J.; Tyndall, Geoffrey S. (2003). ["Gas phase UV absorption spectra for peracetic acid, and for acetic acid monomers and dimers."] J. Photochem. Photobiol. A: Chem. 157, 161–66.

Except where noted otherwise, data relate to standard ambient temperature and pressure.

[Chemical infoboxDisclaimer] applies.

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