Butanal, 2-methyl- - The NIST WebBook

Butanal, 2-methyl-

• Formula: C5H10O
• Molecular weight: 86.1323
• IUPAC Standard InChI: InChI=1S/C5H10O/c1-3-5(2)4-6/h4-5H,3H2,1-2H3 Copy
• IUPAC Standard InChIKey: BYGQBDHUGHBGMD-UHFFFAOYSA-N Copy
• CAS Registry Number: 96-17-3
• Chemical structure: This structure is also available as a 2d Mol file or as a computed 3d SD file View 3d structure (requires JavaScript / HTML 5)
• Species with the same structure:
  • Butanal, methyl-
• Stereoisomers:
  • (S)-2-methylbutanal
• Other names: Butyraldehyde, 2-methyl-; α-Methylbutanal; α-Methylbutyraldehyde; α-Methylbutyric aldehyde; Methylethylacetaldehyde; 2-Formylbutane; 2-Methylbutanal; 2-Methylbutyraldehyde; 2-Methylbutyric aldehyde; sec-C4H9CHO; Acetaldehyde, ethylmethyl-; 2-Methyl-1-butanal; (.+/-.)-2-Methylbutanal; 2-Ethylpropanal; NSC 77077
• Information on this page:
  • Reaction thermochemistry data
  • References
  • Notes
• Other data available:
  • Phase change data
  • Gas phase ion energetics data
  • IR Spectrum
  • Mass spectrum (electron ionization)
  • Gas Chromatography
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Reaction thermochemistry data

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Data compiled by: Hussein Y. Afeefy, Joel F. Liebman, and Stephen E. Stein

Note: Please consider using the reaction search for this species. This page allows searching of all reactions involving this species. A general reaction search form is also available. Future versions of this site may rely on reaction search pages in place of the enumerated reaction displays seen below.

Individual Reactions

+ = 2 +

By formula: C7H16O2 + H2O = 2CH4O + C5H10O

Quantity	Value	Units	Method	Reference	Comment
ΔrH°	34.03 ± 0.14	kJ/mol	Eqk	Wiberg and Squires, 1981	liquid phase

References

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Data compilation copyright by the U.S. Secretary of Commerce on behalf of the U.S.A. All rights reserved.

Wiberg and Squires, 1981 Wiberg, K.B.; Squires, R.R., Thermochemical studies of carbonyl reactions. 2. Steric effects in acetal and ketal hydrolysis, J. Am. Chem. Soc., 1981, 103, 4473-4478. [all data]

Notes

Go To: Top, Reaction thermochemistry data, References

• Symbols used in this document:

  ΔrH°	Enthalpy of reaction at standard conditions

• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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