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Methyl Acetylene (propyne)


Methyl Acetylene is extracted from an MAP gas stream through a process of distillation. 

Standard Specifications

This product is manufactured on a batch basis, please contact us for a detailed analysis.

Purity / Assay
Impurities (Mol %)
Other C-3 and C-4 Hydrocarbons  < 1 

* Standard product is uninhibited. BHT and Hydroquinone inhibitors can be added per customer request.

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 220.0
L30 50.0
L05 10.0
L03 5.0
L01 2.5
Lecture bottle 0.25

* 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) 40.065 Shipping Name Compressed gas, flammable, nos
Liquid Density (kg/m³) 671 Hazard Class 2.1
Gas Density (kg/m³)   UN No. UN 1954
Boiling point (°C) -23.23 Hazard Label  
Specific Volume (m³/kg) 0.606 CAS No. 74-99-7
Vapour Pressure (bar.a @ 20°C) 5.2  
Valve Outlet CGA 510 / BS 4