Isobutylene

C4H8

Isobutylene is produced from lower purity material by a combination of purification techniques including molecular sieve and fractional distillation.

Standard Specifications

Purity / Assay
Impurities (Mol ppm)
2.0
99.0%
3.0
99.9%
4.0
99.99%
Other Hydrocarbons< 1< 0.1< 100ppm
Sulpher< 1ppm< 1ppm< 1ppm
Moisture**< 10ppm< 5ppm< 3ppm
Total Impurities< 1%< 0.1%< 100ppm

**Moisture Specification only guaranteed if cylinders prepared by AGT International

Please contact us if the specification you require is not shown above. AGT International is able to custom manufacture different specifications according to your requirements.

Standard Cylinder Sizes and Fill Volumes

Cylinder Information 
Cylinder SizeFill Volume (kg)
L454245.1
L108*56.7

* Dip tube available for liquid withdrawal

If you require a different container size please contact us.

Technical Information

Technical Data Shipping Information 
Molecular Weight (g/mol)56.107Shipping NameIsobutylene
Liquid Density (kg/m³)626.2Hazard Class2.1
Gas Density (kg/m³)2.65UN No.UN 1055
Boiling point (°C)-7.2Hazard LabelFlammable gas
Specific Volume (m³/kg)0.418CAS No.115-11-7
Vapour Pressure (bar.a @ 20°C)1.68
Valve OutletCGA 510 / BS 4