537713

4-metil-2-pentanone

≥99%

• Sinonimo/i: Isobutil metil chetone, Isopropilacetone, MIBK, Metil isobutil chetone
• Formula condensata: (CH₃)₂CHCH₂COCH₃
• Numero CAS: 108-10-1
• Peso molecolare: 100.16
• Beilstein: 605399
• Numero CE: 203-550-1
• Numero MDL: MFCD00008938
• Codice UNSPSC: 12352115
• ID PubChem: 329757992
• NACRES: NA.21

Proprietà

• Densità del vapore: 3.5 (vs air)
• Livello qualitativo: 100
• Tensione di vapore: 15.7 mmHg
• Saggio: ≥99%
• Stato: liquid
• Temp. autoaccensione: 840 °F
• Limite di esplosione: 1.2-8 %, 93 °F
• Impurezze: ≤0.1000% (water)
• Indice di rifrazione: n20/D 1.395 (lit.)
• P. ebollizione: 117-118 °C
• Punto di fusione: −80 °C (lit.)
• Solubilità: water: soluble 20 g/L
• Densità: 0.801 g/mL at 25 °C (lit.)
• Stringa SMILE: CC(C)CC(C)=O
• InChI: 1S/C6H12O/c1-5(2)4-6(3)7/h5H,4H2,1-3H3; NTIZESTWPVYFNL-UHFFFAOYSA-N

Descrizione

Descrizione generale

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.

Applicazioni

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).

Informazioni sulla sicurezza

• Pittogrammi: GHS02,GHS08,GHS07
• Avvertenze: Danger
• Indicazioni di pericolo: H225,H319,H332,H336,H351
• Consigli di prudenza: P202 - P210 - P233 - P304 + P340 + P312 - P305 + P351 + P338 - P308 + P313
• Classi di pericolo: Acute Tox. 4 Inhalation - Carc. 2 Inhalation - Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3
• Organi bersaglio: Central nervous system
• Rischi supp: EUH066
• Codice della classe di stoccaggio: 3 - Flammable liquids
• Classe di pericolosità dell'acqua (WGK): WGK 1
• Punto d’infiammabilità (°F): 57.2 °F - closed cup
• Punto d’infiammabilità (°C): 14 °C - closed cup