I was given isobutane instead of Nbutane today at praxair and only noticed when I got home, over an hour away. I dont have time to go back, i had been curious about running my rig on a mix, so I distilled 25lbs. I’ve never run anything except N butane.
Will the 21 degree difference make my operating pressure much higher? Surely no higher than my nitro at 60 or 70psi.
I inject and recover through one bi directional coil. The condensing power of the coil is greater than the evaporative capacity of my collection, making it necessary to throttle the recovery. Will running a solvent that has a BP 21 degrees lower help to balance out this thermal equation? Will my coil not pull so hard on my collection with this solvent?
Also…does Isobutane pull anything different that n butane? I heard the extract has a tendency to be more orange. I will be running b80 baked under vac…so I’m hoping there’s no damn orange lol.
I did search but didn’t come up with much…but I’m hard to please.
Lesson…check your fucking tanks before you drive away. Unfortunately, I’ve learned this kind of lesson before…I knew better…or so I thought.
The graph is very helpful. I just didn’t want distill, walk away from a full tank full of cold butane, and as it warms over night, have the pressure rise to an unsatisfactory level. I checked the tank every so often…pressure was fine.
I really am winging this shit…so sometimes I have to ask questions I think I know the answer to…because I’ve been wrong before. Plus yall are cool peeps to converse with…
I was gonna point you at the engineeringtoolbox…but they don’t have this data for isobutane. turns out some Ozzy wandering round in the bush decided folks needed it to make diner
So I need to so another couple of runs to make sure other variables are not a factor…but running a heavy iso tane blend yielded me with the most amazing crashes. More terps than i know what to do with. This southern Oregon outdoor trim is my jam…
This videos was after a 25% pour off by hand. A few diamonds went with, but the point is I had to remove HTE to get this consistency. I was running this same trim prior with n butane, getting great results, but not this saucy.
I am quite satisfied with this accident.
I couldn’t get the video to upload…so here is a link
Assuming they’re not interested in learning how this is done is one approach. I’d prefer to imagine otherwise. how they chose to proceed is up to them…
So far I’ve seen that r600a is refrigerant grade isobutane. And that for it to be considered refrigerant grade, or technical grade, it needs to be a purity level of minimum 99.5%.
