(WO2020/166709) 1. A chemical volatilization device comprising: a chemical volatilization body holding a chemical volatilization property at normal temperature; and a container accommodating the chemical volatilization body therein and having an opening through which the chemical volatilization body is exposed to the outside, wherein, in a predetermined cross section along a thickness direction of the container, And the container has a plate-like structure in which a portion separated from a peripheral edge portion of the container has a protruding shape protruding in the thickness direction more than the peripheral edge portion, and the chemical volatilization body has a shape bent along the protruding shape. 2. The chemical volatilization device according to claim 1, wherein the container is configured such that both a surface on one side and a surface on the other side in the thickness direction have the protruding shape. 3. The chemical volatilization device according to claim 1, wherein the container is configured such that the protruding shape in the cross section is a line-symmetric shape across a central portion of the container. 4. The chemical volatilization device according to claim 1 ~, wherein the chemical includes at least one selected from the group consisting of profluthrin, empenthrin, transfluthrin, and methofluthrin.
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