Problem to be solved: to provide a volatilization apparatus in which there is no possibility that the evaporative liquid drops from the outside of the container even when the evaporative liquid is returned from the lead.A volatilization device 10 for volatilizing the vaporized liquid by the lead 26;The first openingHaving an opening area smaller than that of the first opening 20 andA second opening 22 having a stepped portion 22a between the first opening 20 and the first openingA guide portion 24 for extending an opening on the lower side using the second opening 22 as a base point andA reservoir 14 is disposed below the second opening 22 to store the evaporative liquid.Equipped withWhen the lead 26 is brought into contact with the opening edge at the lower end of the guide part 24 and the edge of the second openingA gap is provided between the lead 26 and the first opening 20.Diagram【課題】リードから被揮散液の出戻りがあった場合でも、容器外部に被揮散液が垂れる虞が無い揮散装置を提供する。【解決手段】リード26により被揮散液を揮散させる揮散装置10であって、第1開口部20と、第1開口部20よりも小さな開口面積を有すると共に、第1開口部20との間に段差部22aを有する第2開口部22と、第2開口部22を基点として下方側に開口を延設するガイド部24と、第2開口部22の下方に位置して被揮散液を貯留する貯留部14と、を備え、リード26をガイド部24の下端部における開口縁と第2開口部22の縁とに接触させた際、リード26と第1開口部20との間に間隙が設けられることを特徴とする。【選択図】図2