Isobutylene [CAS# 115-11-7] (C4H8) - What's the smallest tank of this stuff I can get? The isobutylene shouldn't cost that much, but what about the damned tank?! Can I just tell the chem supplier that I want 500g of this stuff, or am I supposed to know size of tank, type of tank, pressure, blah, blah? As far as haz-mat fees go, will it make a difference that isobutylene isn't under as much pressure as many other gases, or will I be fucking raped for what little cash I have?
I've looked at many patents for isobutylene, and they show ways to extract it from hydrocarbon mixes. Is there any way to make this shit without a fucking oil refinery or some super-bizzarro catalyst under immense pressure?