537713

4-metil-2-pentanona

≥99%

• Sinônimo(s): Isobutilmetilcetona, Isopropilacetona, MIBK, Metilisobutilcetona
• Fórmula linear: (CH₃)₂CHCH₂COCH₃
• Número CAS: 108-10-1
• Peso molecular: 100.16
• Beilstein: 605399
• Número CE: 203-550-1
• Número MDL: MFCD00008938
• Código UNSPSC: 12352115
• ID de substância PubChem: 329757992
• NACRES: NA.21

Propriedades

• densidade de vapor: 3.5 (vs air)
• pressão de vapor: 15.7 mmHg
• Ensaio: ≥99%
• Formulário: liquid
• temperatura de autoignição: 840 °F
• Lim. expl.: 1.2-8 %, 93 °F
• Impurezas: ≤0.1000% (water)
• índice de refração: n20/D 1.395 (lit.)
• p.e.: 117-118 °C
• pf: −80 °C (lit.)
• solubilidade: water: soluble 20 g/L
• densidade: 0.801 g/mL at 25 °C (lit.)
• cadeia de caracteres SMILES: CC(C)CC(C)=O
• InChI: 1S/C6H12O/c1-5(2)4-6(3)7/h5H,4H2,1-3H3
• chave InChI: NTIZESTWPVYFNL-UHFFFAOYSA-N

Descrição

Descrição geral

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.

Aplicação

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).

Informações de segurança

• Pictogramas: GHS02,GHS08,GHS07
• Palavra indicadora: Danger
• Frases de perigo: H225,H319,H332,H336,H351
• Declarações de precaução: P202 - P210 - P233 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313
• Classificações de perigo: Acute Tox. 4 Inhalation - Carc. 2 Inhalation - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3
• Órgãos-alvo: Central nervous system
• Perigos de suplementos: EUH066
• Código de classe de armazenamento: 3 - Flammable liquids
• Classe de risco de água (WGK): WGK 1
• Ponto de fulgor (°F): 57.2 °F - closed cup
• Ponto de fulgor (°C): 14 °C - closed cup