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538191

Sigma-Aldrich

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
Beilstein/REAXYS Number:
506061
EC Number:
204-646-6
MDL number:
MFCD00007023
UNSPSC Code:
12352114
PubChem Substance ID:
329758004
NACRES:
NA.21
assay:
≥99.0%
bp:
75 °C (lit.)
vapor pressure:
90 mmHg ( 20 °C)
Pricing and availability is not currently available.

vapor density

2.5 (vs air)

Quality Level

100

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.)

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Poly(ethylene glycol) Hybri-Max™, mol wt 3,000-3,700, waxy solid, BioReagent, suitable for hybridoma

P2906

Poly(ethylene glycol)

Poly(ethylene glycol) BioXtra, average mol wt 3,350, powder

P4338

Poly(ethylene glycol)

Poly(ethylene glycol) BioUltra, 3,000

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Poly(ethylene glycol)

Poly(ethylene glycol) BioUltra, 1,000

81189

Poly(ethylene glycol)

form

waxy solid

form

powder

form

solid

form

solid

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

100, 200

mol wt

3,000-3,700

mol wt

average mol wt 3,350

mol wt

Mr 2700-3300

mol wt

Mr 950-1050

impurities

endotoxin, tested

impurities

≤0.01% Phosphorus (P), ≤0.1% Insoluble matter

impurities

insoluble matter, passes filter test, ≤0.001% peroxides (as H2O2)

impurities

DNases, none detected, RNases, none detected, insoluble matter, passes filter test, phosphatases, none detected, proteases, none detected

biological source

synthetic (organic)

biological source

-

biological source

-

biological source

-

grade

Hybri-Max™

grade

-

grade

-

grade

for molecular biology

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.[1] The mechanism of pyrolysis of butyraldehyde in the gas-phase has been described.[2] The kinetic study of the condensation reaction between butyraldehyde and poly(vinyl alcohol) indicates retardation effect.[3]

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).[4]

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

hcodes

H225,H319

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2

Storage Class

3 - Flammable liquids

wgk_germany

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
    SHBJ8889
    SHBJ7235
    SHBH1225V
    SHBG9966V
    SHBG4657V

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