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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 %)
2.0
99.0%
3.0
99.9%

4.0
99.99%

Other Hydrocarbons < 1 < 0.1 < 100ppm
Sulphur < 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 Size Fill Volume (kg)
L454 245.1
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) 56.107 Shipping Name Isobutylene
Liquid Density (kg/m³) 626.2 Hazard Class 2.1
Gas Density (kg/m³) 2.65 UN No. UN 1055
Boiling point (°C) -7.2 Hazard Label Flammable Gas
Specific Volume (m³/kg) 0.418 CAS No. 115-11-7
Vapour Pressure (bar.a @ 20°C) 1.68  
Valve Outlet CGA 510 / BS 4