Originally Posted by kmk420kali
Ok, I will risk looking like an idiot, but I was wondering about residual butane--
Ppl keep talking about underpurged stuff, I'm not talking runny bullshit...but good looking taffy, or wax...that MAY have some minuscule amount left in it--
My question being, when you take your dab, that shit is burning VERY hot....does this not burn off any residual butane, and seeing as the byproduct of butane is simply co2 and h2o...how is it harmful??
I'm sure there will be some heated discussions about this, but I am hoping for some of you "scientific mentors" to clear this up--
If you are dabbing at the correct temperature, the residual butane goes off as butane. It is only when you get it hot enough to oxidize that it breaks down into CO2 and water vapor.
Butane is just carbon and hydrogen, so it is of low toxity, and the MSDS gives the following:
ACGIH TLV (United States, 2/2010).
TWA: 1000 ppm 8 hour(s).
NIOSH REL (United States, 6/2009).
TWA: 1900 mg/m³ 10 hour(s).
TWA: 800 ppm 10 hour(s).
OSHA PEL 1989 (United States, 3/1989).
TWA: 1900 mg/m³ 8 hour(s).
TWA: 800 ppm 8 hour(s).
It is a simple asphixiant and is not a known carcinogen, mutgagen, or teratogen. The above levels required to be of concern, clearly demonstrate that the residuals likely found in a BHO are not toxic, but more of a nuisance from a taste and smell standpoint.
Even the taste and smell profile is low enough that they use butane as a propellent in some food containers.