277258

2-Methylbutane

anhydrous, ≥99%

• Synonym(s): Isopentane
• Linear Formula: CH₃CH₂CH(CH₃)₂
• CAS Number: 78-78-4
• Molecular Weight: 72.15
• Beilstein: 1730723
• EC Number: 201-142-8
• MDL number: MFCD00009338
• UNSPSC Code: 12352001
• PubChem Substance ID: 57648270
• NACRES: NA.21

Properties

• grade: anhydrous
• Quality Level: 100
• vapor density: 2.6 (vs air)
• vapor pressure: 11.17 psi ( 20 °C)
• Assay: ≥99%
• form: liquid
• autoignition temp.: 788 °F
• expl. lim.: 8.3 %
• impurities: <0.001% water; <0.005% water (100 mL pkg)
• evapn. residue: <0.0003%
• refractive index: n20/D 1.354 (lit.)
• bp: 30 °C (lit.)
• mp: -160 °C
• density: 0.62 g/mL at 25 °C (lit.)
• storage temp.: 2-8°C
• SMILES string: CCC(C)C
• InChI: 1S/C5H12/c1-4-5(2)3/h5H,4H2,1-3H3
• InChI key: QWTDNUCVQCZILF-UHFFFAOYSA-N

Description

Application

2-Methylbutane undergoes catalytic dehydrogenation in the presence of chromia-alumina catalyst to form isoamylenes, which can undergo further dehydrogenation to form isoprene. It may also be used as a solvent in the preparation of trans-Bis(triethylphosphine) (hydroxy carbonyl) (phenyl) platinum(II), a metallacarboxylic acid.

Safety Information

• Pictograms: GHS02,GHS08,GHS07,GHS09
• Signal Word: Danger
• Hazard Statements: H224,H304,H336,H411
• Precautionary Statements: P210 - P233 - P273 - P301 + P310 - P331 - P403 + P233
• Hazard Classifications: Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 1 - STOT SE 3
• Target Organs: Central nervous system
• Supplementary Hazards: EUH066
• Storage Class Code: 3 - Flammable liquids
• WGK: WGK 2
• Flash Point(F): -59.8 °F - closed cup
• Flash Point(C): -51 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves