Problem to be solved: to prevent fouling of the outer surface of the container and its surrounding environment in a chemical drier which absorbs and removes the chemicals in the container by a bar shaped volatilization body.Solution: the chemical liquid vaporizer comprises a container 2 having an opening S1 at its upper part, and a container 2 for accommodating the chemical liquid therein, and a bar like volatilization member 3 inserted into the container through the opening so as to expose the chemical liquid from the container to the outside of the container.The container includes a container body 4 having a mouth 23, and a cover member 5 attached to the container body so as to cover the mouth above.The cover member has a top surface 50 formed with the opening.The inner peripheral portion 501 defining the opening among the above faces is positioned radially inward than the upper end 231 of the mouth portion.Diagram【課題】棒状の揮散体により容器内の薬液を吸い上げて揮散させる薬液揮散器において、漏れ出した薬液が容器の外表面及びその周辺環境を汚すことを防止する。【解決手段】薬液揮散器は、上部に開口Ｓ１を有し、内部に薬液を収容するための容器２と、前記薬液を前記容器内から吸い上げるべく、前記容器外へその一部が露出するように前記開口を介して前記容器内に挿入される棒状の揮散体３とを備える。前記容器は、口部２３を有する容器本体４と、前記口部を上方から覆うように、前記容器本体に取り付けられるカバー部材５とを含む。前記カバー部材は、前記開口が形成される天面部５０を有する。前記天面部のうち、前記開口を画定する内周縁部５０１は、前記口部の上端部２３１よりも径方向内方に位置する。【選択図】図４
