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Safety Information

538191

Sigma-Aldrich

Butyraldehyde

≥99.0%, dry

Synonym(s):

Butanal

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About This Item

Linear Formula:
CH3CH2CH2CHO
CAS Number:
Molecular Weight:
72.11
Beilstein:
506061
EC Number:
MDL number:
UNSPSC Code:
12352114
PubChem Substance ID:
NACRES:
NA.21
Assay:
≥99.0%
bp:
75 °C (lit.)
vapor pressure:
90 mmHg ( 20 °C)

vapor density

2.5 (vs air)

Quality Level

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

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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).

Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2

Storage Class Code

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


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 1 petroleums
Hazardous rank II
Water insoluble liquid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

538191-VAR:
538191-2L:
538191-4L:
538191-1L:
538191-BULK:
538191-VAR-D:
538191-100ML:


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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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