Provided is an adsorbent for radioactive iodine said adsorbent being capable of: adsorbing radioactive iodine more effectively than a conventional adsorbent; and removing hydrogen which is one of the causes of reactor accidents. An adsorbent which is to be used for radioactive iodine and which is obtained by granula...

Provided is a novel heat source device utilizing the reaction heat of a catalyst that can be used as a heat source for industrial use. A heat source device 100 utilizes the catalytic reaction heat of silver zeolite 1, and comprises a housing container 10 that houses the silver zeolite 1 while maintaining air permeab...