2-Methylbuta-1,3-diene;2-methylprop-1-ene

Base Information

• Chemical Name: 2-Methylbuta-1,3-diene;2-methylprop-1-ene
• CAS No.: 9010-85-9
• Molecular Formula: (C5H8.C4H8)x
• Molecular Weight: 56.10630
• European Community (EC) Number: 614-265-0,614-497-2,618-457-5
• DSSTox Substance ID: DTXSID70978080
• Wikidata: Q26840856
• Mol file: 9010-85-9.mol

Synonyms:butyl rubber

Chemical Property of 2-Methylbuta-1,3-diene;2-methylprop-1-ene

Chemical Property:

• Vapor Pressure: 549mmHg at 25°C
• Boiling Point: 34.1°C at 760 mmHg
• PSA: 0.00000
• LogP: 1.58240
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 1
• Exact Mass: 124.125200510
• Heavy Atom Count: 9
• Complexity: 74.1

Purity/Quality:

98%,99%, ^*data from raw suppliers

Safty Information:

• Statements: 10
• Safety Statements: 16

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: UVCB,Plastics & Rubber -> Plastic & Rubber Dusts/Fumes
• Canonical SMILES: CC(=C)C.CC(=C)C=C
• Description: A synthetic copolymer containing from 0.5 to 2.0 molar percent of isoprene, the remainder, respectively, consisting of isobutylene. It is prepared by copolymerization of isobutylene and isoprene in methyl chloride solution, using aluminum chloride as the catalyst. After completion of polymerization, the rubber particles aretreated with hot water containing a suitable food-grade deagglomerating agent, such as stearic acid. Finally, the coagulum is dried to remove residual volatiles.
• Uses: Butyl rubber is formed from the polymerization of isobutene (isobutylene) with small amounts of chloroprene, isoprene, or butadiene and may be halogenated. The reaction is carried out in a closed system with an aluminum chloride catalyst. Butyl rubber is highly impervious to gases, which makes it the rubber best suited for inner tubes and tires, air chambers, adhesives, and dielectrics. Isobutene is an anesthetic and asphyxiant gas and can be hazardous in concentrations high enough to produce asphyxia. At these concentrations, explosion is an additional hazard.