Traces of vanadium in substantial-temperature combustion products and solutions type droplets of molten vanadates. These attack the passivation layers on metals and result in high temperature corrosion, that's a concern especially for inner combustion engines. Molten sulfate and lead particulates even have this kind of outcome. 1600 – Tobacco https://broadfar.com/oraco-pioneering-a-smokeless-future-with-innovative-nicotine-delivery/