I used to sell gases and chemicals to pharma companies. All these products had to be deemed food grade / USP grade, meaning they had been thoroughly tested and certified as having no toxic or cancer agents in them.
There is really no clear-cut definition or required testing to qualify butane as being “food grade”. With no targets and limitations to meet, a supplier claiming that their material is “food grade” is full of shit. NB the 99.9998% pure food-grade Puretane. All of their claims are ludicrous. On their website they claim:
99.9998% pure butane, only impurity is 2 ppm isobutane
Triple refined / 11 X filtered.
The only US manufacturer of butane
All lies, aimed specifically at duping extractors. Shameful. Disgraceful. What it is this stuff? I don’t know, but it isn’t 99.9998% pure. Not sure what they mean by refining, but they do not own or operate a fractioning facility, so maybe they refine it by distilling ? ? ? They can run it through as many filters they want, it’s not going to be 99.9998%. Absolute bullshit.
Beyond “benzene” →
ill argue that for dabbable oils (batter/shatter/sauce etc) we need gas of an obnoxious degree of purity. Is it 6N or 7N? Not sure, but “DabGrade” seems like it should be a thing someday. And if my dreams come true, DabGrade gas wont come in a carbon steel tank. Maximal purity is of course desired, but whats the real cost? We need more data and backed by sensory tests from the nail.
Consumer safety is one thing, and primary but secondly is flavor.
Were dabbing these oils, not just eating them. Our senses (or mine at least) can taste impurities in the solvent used that are in very low concentration. I dont know what these are, havent explored that rabbit hole enuff to know other than if im not diligently managing the purity of my solvent, I will taste it on the nail.
Rusty tank taste is just the tip of the berg.
I will acknowledge that beyond rusty tank taste, many of my homies cant taste these off notes that drive me to scrap a batch to edible use.
Its also possible that what off-notes i taste could also be coming from the flower. I like to think ive ruled that out over the yrs but Im not getting lab analysis on all the gas I use so my proof is yet to be backed by hard data we can discuss here. I just assume its dirty, no matter who it came from and clean it myself, even after a few runs with it it gets purified again when running head stash.
A marginally related pedantic thought with regard to calling it Dinosaur Juice, crude oil was more likely created by large ocean Algae die offs when the ocean ph shifted due to changes in rainfall and volcanic activity.
I propose we call Propane and Butane naturally processed and aged alkane Juices of Dead Algae.
I’d typically refer to it as a “flash vessel” but that’s not completely right.
After these several years in cannabis extraction, I’ve seen a lot of things that I wish I could express in typical Chemical Engineering terms but those terms don’t exist.
I can’t imagine how to go about stopping a company / companies from lying and deceiving the industry. Class action lawsuit? Would it make sense for me to invest big $ to sue Puretane and other companies misrepresenting the quality of their gases when they are likely non-collectable for a million dollar verdict?
I’ve decided to warn extractors whenever and wherever I can.
It’s not so much the lie about being the only butane producer in the country that gets to me, it’s the lie about the purity of the butane they sell.
Petroleum processing & refining is done all over the US. There are 3 such plants within an hour drive if our plant up here in Toledo. Each one fractions crude oil into it’s components: methane, ethane, propane, butane, pentane, hexane etc… to commercial purity standards. Puretane could buy from any of hundreds of fractioning plants in the US.
These plants produce in railcar quantities and are designed to run 24/7. They do not produce 99.5% pure gases. 99.999% butane is not produced on a commercial level anywhere. Anyone claiming that their gas is 5N pure is either naive or intentionally fill of shit. Hydrocarbon cross-contamination cannot be resolved by filtering, distilling or running through media.
The big question is that if a company lies about it’s product why in the world would anyone buy their stuff. The only thing we know for sure is that they don’t tell the truth. Do they deserve your $?
Transition between thermal and chemical effect of hydrogen assisted nbutane fuel catalytic ignition over Pt catalyst
" The gas supply system is mainly composed of air, n-butane and hydrogen paths. These paths are respectively controlled by the control valves connected to the mass flowmeter. The gas flow rate can be separately controlled by the mass flowmeter to meet the required equivalence ratio and hydrogen content. The purity of n-butane, air and hydrogen is 99.999%, 99.99%, 99.999%, respectively" https://sci-hub.se/10.1016/j.fuel.2020.118053
paper came to mind as we were discussing autoignition of a pgm in hydrogen
maybe what puretane is saying is no one but them makes 5n in the usa.
there are others overseas though that seem to say they can do it too.
and reference to people using it in literature.
I am not saying your wrong but here are a few proofs of 5n gas and your saying
someones product is not what they say it is world over.
its going to need some third party to prove it and out side of this context.
multiple companies selling 5n and one large company that sells to all the high
end hotels saying there 5n.
we all know you guys have oil and gas man hell ive watch the The Beverly Hillbillies
which thanks to this I have now got on torrent downloading
another study that uses 99.999% butane with two previous studies using it
referenced.
Shock Tube Measurements and Kinetic Study on Ignition Delay Times of Lean DME/n‑Butane Blends at Elevated Pressures
"The detailed test mixture compositions are listed in Table 1. The purities of DME, n-butane, oxygen, and argon were higher than 99.999%. Fuel mixtures were prepared according to the method in the previous studies.29,32 "
I wonder if they say were they got it in the other papers.
a procedure to purify dino to 99.95%
Absorption of n-butane in imidazolium and phosphonium ionic liquids and application to separation of hydrocarbon gases
first I get a steel plate with some brown gunk and no answers to any questions
to shoot them down.
now that it is impossible to do what they say they are doing.
and here is proof that others at least think there doing it and people will
publish that they are doing it.
really guys if your going to shit on another company it would be at least a little polite
to show evidence that there product is not what it is.
picture here and there of dirt on a plate proves nothing.
again I am not saying you guys are wrong just that if you are right
it would be best if it was shown in a way that was not refutable.
its allowed as a food good here and that is based on its statement of purity.
If you can prove its not what they say it is I think you will find in australia
I was heavily involved in third party testing various butane sources when the issue of Mystery Oil first reared it’s ugly head on IC Mag.
I found an independent lab to do the empirical testing, and set up several gas suppliers for the lab to do their receiving inspection.
Besides my third party lab results, Skyhighler became interested on IC Mag forum, and conducted residue tests on most of the lighter brands.
The following link shows what my independent lab and Skyhighler came up with.
My suggestion with any LPG used, is to pre-distill it first. Cleaning your distillation pot afterwards provides you with direct insight into the purity of the gas you are using. No further discussion needed.
Indeed if everyone did that, this conversation would be moot, as there would be no unanswered questions.
Madison Avenue is full of the oldest, the first, the biggest, the best, the most sought after, and the ones recommended and used by leading doctors, yet no one calls them out until people start getting seriously hurt. IE: Vitamin E Acetate
" Electronic Fluorocarbons, LLC(EFC) services global industries with high-quality rare gases and fluorocarbons purified to the highest specifications."
“Electronic Fluorocarbons provides butane at 99.999% purity to meet all of your customer’s needs. For additional information/ordering, call 1-888-924-3371 or email us at sales@efgases.com.”
then there are lots of mixtures of propane n and iso butane that claim
99.999% tri blend butane is one that I can think of off the top of my head.
how can they all be lying ?
I am sure that they all test there stuff too as part of there process.
so it would have to be flat out lies.
again I expect you get what you pay for.
interesting that graywolfs paper has the colibri brand
your test shows 1 point to the 300 ml
and then 0.0023g too the 270ml
one test comes out at around 99.95% and the other quite a lot purer by the looks of it.
I wonder if being they are small cans if the first to get filled are purer than the last
and the purity number is on the batch and not the individual cans.
Sorry if it seems like I’m beating this into the ground, but Both Gas Innovations and Electronic Fluorocarbons sell Diversified products. Diversified is an ISO9001 manufacturer of odorless aerosol and instrument grade hydrocarbons.
Gas Innovations properly shows the 99.99% pure n-butane as 99.99% pure.
Electronic Fluorocarbons mistakenly references to the gas as 99.999%, but if you go to the n-butane specifications on their site, you will see that the gas is the same as Gas Innovations (and ours) at 99.99% specification.
Another link from Sci-hub you shared details an experiment by a Japanese dude using more than a hand full of chemicals and (on page 6) n-butane with a purity of 99.95%. I stopped reading when I saw that. Can this dude make super high purity n-butane in his lab - perhaps - but not on a commercial scale.
Like Gas Innovations, we are a first tier distributor of Diversified products, no idea what their pricing might be, but our buy for the 99.99% pure n-butane is over $10 a pound. This is legit product coming from an ISO9001 approved manufacturing plant. 99.99% purity allows for 100 ppm total impurities. 99.999% allows 10 ppm total impurities. Based on this product cost and their sales price alone, it’s impossible for Calibri, Puretane (and others) to start with this expensive 99.99% n-butane remove 90% of the impurities to get to their claimed 99.999% purity then selling it into the market at < $10 a pound.
So what are they starting with? Commercial / industrial grade butane (94% pure) with 60,000 ppm total impurities? Without a fractionator? NFW.
Gas Innovations is legit. EF Gases made a mistake that is corrected by their actual specifications listed above. The others claiming to have 99.999% n-butane are either naive or intentionally lying.
And guess how much real 99.99% normal and 99.999% propane costs?
The amount of time, talent, and processing required to manufacture these puts them at waymorethanyouwantopay/gal.
