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Merck

538191

Butyraldehyde

≥99.0%, dry

Synonym(s):

Butanal

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About This Item

Linear Formula:
CH3CH2CH2CHO
CAS Number:
123-72-8
Molecular Weight:
72.11
UNSPSC Code:
12352114
NACRES:
NA.21
PubChem Substance ID:
329758004
EC Number:
204-646-6
Beilstein/REAXYS Number:
506061
MDL number:
MFCD00007023
Assay:
≥99.0%
Bp:
75 °C (lit.)
Vapor pressure:
90 mmHg ( 20 °C)

Key Documents

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Product Name

Butyraldehyde, ≥99.0%, dry

InChI key

ZTQSAGDEMFDKMZ-UHFFFAOYSA-N

InChI

1S/C4H8O/c1-2-3-4-5/h4H,2-3H2,1H3

SMILES string

[H]C(=O)CCC

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.)

Quality Level

100

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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).

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.

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

hcodes

H225,H319

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

<50.0 °F - Pensky-Martens closed cup

flash_point_c

< 10 °C - Pensky-Martens closed cup

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Certificates of Analysis (COA)

Lot/Batch Number
MKCR4132
SHBJ8889
SHBJ7235
SHBH1225V
SHBG9966V

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Thermal decomposition products of butyraldehyde.
Hatten CD, et al.
J. Chem. Phys. , 139(21), 214303-214303 (2013)
Kinetic studies on dehydrogenation of butanol to butyraldehyde using zinc oxide as catalyst.
Raizada VK, et al.
Journal of Chemical Technology and Biotechnology, 56(3), 265-270 (1993)
Highly selective Pd/KX catalysts for low-pressure one-step synthesis of 2-ethylhexanal from n-butyraldehyde and hydrogen.
Ko AN, et al.
Catalysis Letters, 54(4), 207-210 (1998)
Retardation effect in acetalization of poly (vinyl alcohol) with butyraldehyde.
Rumyantsev M, et al.
Eur. Polymer J., 49(6), 1698-1706 (2013)
Yiannis C Fiamegos et al.
Analytica chimica acta, 609(2), 175-183 (2008-02-12)
A suitable method for the gas chromatographic determination of 10 characteristic carbonyls in biological and oil samples based on the in-drop formation of hydrazones by using 2,4,6-trichlorophenylhydrazine (TCPH), has been developed. The derivatisation-extraction procedure was optimized separately for aqueous and
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