volatile -- (a volatile substance; a substance that changes readily from solid or liquid to a vapor; "it was heated to evaporate the volatiles")
Overview of adj volatile
The adj volatile has 4 senses
volatile -- (evaporating readily at normal temperatures and pressures; "volatile oils"; "volatile solvents")
explosive, volatile -- (liable to lead to sudden change or violence; "an explosive issue"; "a volatile situation with troops and rioters eager for a confrontation")
fickle, volatile -- (marked by erratic changeableness in affections or attachments; "fickle friends"; "a flirt's volatile affections")
volatile -- (tending to vary often or widely; "volatile stocks"; "volatile emotions")