Flame retardant formerly used in children's sleepwear; once considered as a potential replacement for Tris-BP, q.v. Prepn: W. J. Jones et al., J. Chem. Soc. 1946, 824. Use in flameproofing: R. J. Polacek, US 3041293 (1962 to Celanese). Thermal studies: K. Paciorek et al., Am. Ind. Hyg. Assoc. J. 39, 633 (1978); N. Inagaki et al., J. Appl. Polym. Sci. 21, 217 (1977); 24, 1 (1979). Mutagenicity studies: M. D. Gold et al., Science 200, 785 (1978); A. Nakamura et al., Mutat. Res. 66, 373 (1979); D. Brusick et al., J. Environ. Pathol. Toxicol. 3, 207 (1979). Toxicity study: J. K. Piotrowski et al., Bromatol. Chem. Toksykol. 9, 141 (1976), C.A. 85, 104825u (1976).