No idea how many reading this might be involved open blasting but those who are should be concerned. I recently bought 4 little cans of butane that are available on-line. Every one of the cans is labeled as containing very high purity n-butane and every single one of the cans tested to be between 50 and 60% butane with the balance mostly being propane and isobutane.
Only one of the cans proved to be properly labeled based on it’s contents. The label describes contents as a “Triblend” of n-butane, propane and isobutane. The other were all low purity and one of the cans even popped for benzene at 14 ppm !
Except for the benzene, I suppose it doesn’t really matter so long as the contents pull oil from the plant, but it really pisses me off when products are knowingly mislabeled and buyers lack the ability to test to verify purity claims. Blasters are the easiest target for this type of bullshit as their extractant does not get tested for anything.
If 20 pound tanks of n-butane are not available to buyers locally, they are certainly available on-line. To date, our testing of the n-butane in 20 pounders shows that some n-butane falls a little short of purity claims, but, even if the contents are only 98% n-butane, the gas is way better.
I’m not going to list the company names on these little cans. We’re collectable for legal actions. Buyer beware.