| 摘要 |
PROBLEM TO BE SOLVED: To provide a vaporizer in which a volatile chemical is housed in a container molded simply, and which is capable of keeping the vaporizing rate almost constant and reducing loss of the chemical through migration. SOLUTION: A chemical composition 2 containing a volatile chemical being held onto a carrier is housed in a plastic container 3 of 0.1-1 mm thick and a sheet 4 that the volatile chemical can permeate therethrough is pasted to the opening of the container.
|
