Traces of vanadium in higher-temperature combustion products and solutions sort droplets of molten vanadates. These attack the passivation levels on metals and cause substantial temperature corrosion, which can be a priority especially for inner combustion engines. Molten sulfate and guide particulates even have this sort of result. 1600 – https://broadfar.com/non-combusted-cigarettes-a-safer-alternative-or-just-a-myth/