Flame retardant, resin composition and resin-molded article

摘要

A flame retardant includes an ion complex formed from compounds including at least one first compound each selected from sulfuric acid or a compound having a sulfonic acid group and a second organic compound each having a cationic moiety. The ionic complex includes ionic bonding of sulfuric acid or a sulfonic acid group in the at least one first compound and at least one cationic moiety in the at least one second organic compound. At least one of the at least one first compound or the at least one second organic compound includes a high-molecular-weight compound.