isobutane

[Sal Lubrano]

Does anyone know where to purchase isobutane ------propane-butane mix?

 

[S10xGN]

I worked on an iso unit 35 years ago when I first started in the refinery business. Didn't know end-users could buy small (under tank car sized) quantities... Maybe a lab supply outfit?

 

[ijames]

Isobutane is not a mix of propane and butane, it is a distinct chemical compound (there is isobutane and n-butane). You can order it from gas suppliers like Matheson or Linde - check your local welding supply places but beware the sticker shock depending on the purity.