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AssigneeToda Kogyo Corporation
InventorsToshiki Matsui, Masaru Isoai, Yasuhiko Fujii, Satoshi Hatakeyama, Tomoko Okita, Tomoyuki Imai
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Calcium-iron oxide composite particles of the present invention have a BET specific surface area of 1 to 100 m2/g and containing iron atom in an amount of 1 to 50 moles based on 100 moles of calcium atom, the iron atom of not less than 50% based on the total amount of iron atom contained in said calcium-iron oxide composite particles being bonded with calcium atom for forming a calcium-iron ferrite phase. A hydrogen chloride-scavenger comprising the calcium-iron oxide composite particles, is capable of effectively capturing harmful hydrogen chloride generated by thermal decomposition or combustion of chorine-containing resin molded products upon fire or incineration thereof, and fixing the hydrogen chloride as stable calcium chloride or the like.
Calcium-iron oxide composite particles having a BET specific surface area of 1 to 100 m2/g and containing iron atom in an amount of 1 to 50 moles based on 100 moles of calcium atom,
A hydrogen chloride-scavenger comprising said calcium-iron oxide composite particles having a BET specific surface area of 1 to 100 m2/g and containing iron atom in an amount of 1 to 50 moles based on 100 moles of calcium atom,
Dependencies are inferred from the claim text.