Co2 Oil vs BHO

PG = Propylene glycol • VG = vegetable glycerine

Propylene glycol is used by the chemical, food, and pharmaceutical industries as an antifreeze

Formaldehyde-containing chemical compounds can be released during the “vaping” process as the liquid is heated. But it’s totally likely that some people dilute hash oil with propylene glycol and glycerol, which we know can form formaldehyde,” said co-author James F. Pankow, professor of chemistry and engineering at Portland State University in Oregon.

What happens is that the hydrocarbons in the propylene glycol and glycerin molecules are partially oxidized – oxygen reacts with them to “steal” electrons. If the combustion was complete, you would wind up with just carbon dioxide and water. When combustion is incomplete, you can get any number of compounds, two of which happen to be formaldehyde and acetaldehyde. Carbon monoxide is another one I would be concerned about.

Formaldehyde is a colorless, strong-smelling gas used in embalming fluid, building materials and some medicines and cosmetics. It can also be produced as a byproduct of cooking and smoking.

According to the American Cancer Society, exposure to formaldehyde has been shown to cause cancer in laboratory animals and has also been linked to some cancers in humans.

When gaseous formaldehyde, found in funeral homes and other occupational settings, is inhaled, it breaks down in the mouth, nose, throat, and airways. Exposure has been linked to throat and nasal cancers and leukemias.