538191

Butyraldehyde

≥99.0%, dry

• Sinónimos: Butanal
• Fórmula lineal: CH₃CH₂CH₂CHO
• Número de CAS: 123-72-8
• Peso molecular: 72.11
• Beilstein/REAXYS Number: 506061
• EC Number: 204-646-6
• MDL number: MFCD00007023
• UNSPSC Code: 12352114
• PubChem Substance ID: 329758004
• NACRES: NA.21

Propiedades

• 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

Descripción

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).

Información de seguridad

• pictograms: GHS02,GHS07
• signalword: Danger
• hcodes: H225,H319
• pcodes: P210 - P233 - P240 - P241 - P242 - P305 + P351 + P338
• 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