How ‘cool’ is vaping the ‘harmless’ weed? Hmmmm?

Vaping can transform the Cannabinoid known as CBD – a typically non-intoxicating substance into THC – the psychotropic compound in cannabis that gets you ‘high’. If that’s not enough to warrant a significant level of precaution, vaping cannabis can lead to creating a respiratory poisoning gas called  Ketene, which can fill your lungs with fluid and kill you.
The aim of our study was to investigate the effect of temperature on the composition of pyrolysis products of CBD. The experiments were performed in the typical operating temperature range of e-cigarettes (250–400 °C) and at 500 °C under both inert and oxidative conditions, and the pyrolysis products were identified and quantified by GC–MS. Depending on the temperature and atmosphere, 25–52% of CBD was transformed into other chemical substances: Ä9-THC, Ä8-THC, cannabinol and cannabichromene were the predominant pyrolysates in both conditions, all formed by cyclization reaction. THC was the main pyrolysis product at all temperatures under both oxidative and inert conditions. Our results point out that CBD in e-cigarettes can be considered as a precursor of THC, thus it bears all the dangers related to this psychoactive compound. Our findings are fundamental contributions to the safety profile of CBD-based e-cigarettes. (Source: https://www.nature.com/articles/s41598-021-88389-z )

Vaping Cannabinoid Acetates Leads to Ketene Formation Ä8-THC acetate is a relatively new psychoactive cannabis product that is available online and in vape shops across the US since it is currently unregulated. Because it contains a similar substructure to vitamin E acetate, which has been shown to form the poison gas ketene during vaping, we investigated potential ketene formation from Ä8-THC acetate, as well as other cannabinoids acetates, CBN acetate and CBD acetate, under vaping conditions. Ketene was consistently observed in vaped condensates from all three acetates as well as from a commercial delta-8 THC acetate product purchased online.   (Source: Department of Chemistry, Portland State University, Portland  https://pubs.acs.org/doi/10.1021/acs.chemrestox.2c00170 )