| abstract |
The present invention provides a honeycomb structure and the like which is excellent in safety because it is dissolved and discharged out of the body even when introduced into the body during production, use, and crushing. A columnar honeycomb structure composed of porous ceramics arranged in a longitudinal direction by partitioning a wall, wherein the honeycomb structure has a sealing material layer, and the sealing material layer comprises 60 to 85% by weight of silica, an alkali metal compound, and alkaline earth An inorganic fiber comprising 15 to 40% by weight of one kind of compound selected from the group consisting of a metal compound and a boron compound is characterized by comprising.n n n n Honeycomb structure, sealing material layer, wall, ceramic block, porous ceramic member, casing, metal cell |