537713

4-Methyl-2-pentanone

≥99%

• Synonyme(s) : Isobutyl methyl ketone, Isopropylacetone, MIBK, Methyl isobutyl ketone
• Formule linéaire : (CH₃)₂CHCH₂COCH₃
• Numéro CAS: 108-10-1
• Poids moléculaire : 100.16
• Numéro Beilstein : 605399
• Numéro CE : 203-550-1
• Numéro MDL: MFCD00008938
• Code UNSPSC : 12352115
• ID de substance PubChem : 329757992
• Nomenclature NACRES : NA.21

Propriétés

• Densité de vapeur: 3.5 (vs air)
• Pression de vapeur: 15.7 mmHg
• Pureté: ≥99%
• Forme: liquid
• Température d'inflammation spontanée: 840 °F
• Limite d'explosivité: 1.2-8 %, 93 °F
• Impuretés: ≤0.1000% (water)
• Indice de réfraction: n20/D 1.395 (lit.)
• Point d'ébullition: 117-118 °C
• Pf: −80 °C (lit.)
• Solubilité: water: soluble 20 g/L
• Densité: 0.801 g/mL at 25 °C (lit.)
• Chaîne SMILES: CC(C)CC(C)=O
• InChI: 1S/C6H12O/c1-5(2)4-6(3)7/h5H,4H2,1-3H3
• Clé InChI: NTIZESTWPVYFNL-UHFFFAOYSA-N

Description

Description générale

4-Methyl-2-pentanone (Methyl isobutyl ketone, MIBK), an aliphatic ketone, is commonly used as an organic solvent. It is generally used as an extractant in atomic absorption spectrometry. Preparation of MIBK using 2-propanol as the precursor has been reported with yield as high as 25%. The rate constant for the reaction between OH radical and MIBK was found to be 1.40 ± 0.07×10¹¹cm³molecule^-1s^-1. The kinetics and mechanism of photochemical reaction of MIBK in n-hexane solution has been studied. The microwave spectrum of MIBK has been recorded to obtain its rotational constants and centrifugal distortion constants.

Application

4-Methyl-2-pentanone may be used to prepare (R)-(-)-4-methyl-2-pentanol via asymmetric hydrogenation in the presence of silica-supported starch-polysulfosiloxane-platinum complex (SiO₂-ST-Si-S-Pt).

Informations sur la sécurité

• Pictogrammes: GHS02,GHS08,GHS07
• Mention d'avertissement: Danger
• Mentions de danger: H225,H319,H332,H336,H351
• Conseils de prudence: P202 - P210 - P233 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313
• Classification des risques: Acute Tox. 4 Inhalation - Carc. 2 Inhalation - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3
• Organes cibles: Central nervous system
• Risques supp: EUH066
• Code de la classe de stockage: 3 - Flammable liquids
• Classe de danger pour l'eau (WGK): WGK 1
• Point d'éclair (°F): 57.2 °F - closed cup
• Point d'éclair (°C): 14 °C - closed cup