Sigma-Aldrich

Butyraldehyde 99% Dry 1 Liter

Part Number:
MIL-538191-1L
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2-4 weeks
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1 liter / 32 ounce
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Description

Butyraldehyde ≥99.0% Dry 1 Liter

Synonym: Butanal

  • CAS Number 123-72-8
  • Linear Formula CH3CH2CH2CHO
  • Molecular Weight 72.11
  • Beilstein/REAXYS Number 506061
  • EC Number 204-646-6
  • MDL number MFCD00007023
  • PubChem Substance ID 329758004
  • NACRES NA.21
vapor density 2.5 (vs air)
vapor pressure 90 mmHg ( 20 °C)
assay ≥99.0%
autoignition temp. 390 °F
expl. lim. 12.5 %
impurities ≤0.30% (water)
refractive index n20/D 1.380 (lit.)
bp 75 °C (lit.)
mp −96 °C (lit.)
solubility water: soluble 50 g/L at 20 °C
density 0.8 g/mL at 25 °C (lit.)
SMILES string [H]C(=O)CCC
InChI 1S/C4H8O/c1-2-3-4-5/h4H,2-3H2,1H3
InChI key ZTQSAGDEMFDKMZ-UHFFFAOYSA-N

General description

Butyraldehyde (n-Butyraldehyde), an aliphatic aldehyde, can be synthesized by dehydrogenation of butanol in the presence of zinc catalyst. It is an important precursor for preparing polyvinylbutyral. The mechanism of pyrolysis of butyraldehyde in the gas-phase has been described. The kinetic study of the condensation reaction between butyraldehyde and poly(vinyl alcohol) indicates retardation effect.

Application

Butyraldehyde (n-Butyraldehyde) may be used in the preparation of 2-ethylhexanal (2EH) via hydrogenation in the presence of tetraamine palladium(II) chloride supported on the potassium ion-exchanged zeolite X (Pd/KXW) and on the potassium ion-added zeolite X (Pd/KXU).

GHS02GHS07GHS02, GHS07

Signal word Danger
Hazard statements H225-H319
Precautionary statements P210-P305 + P351 + P338
RIDADR UN1129 - class 3 - PG 2 - Butyraldehyde
WGK Germany 1
RTECS ES2275000
Flash Point(F) 23 °F
Flash Point(C) -5 °C

Documents 

Warnings

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MPN:
538191-1L