“…Small amounts of bromodinitromethane and dibromodinitromethane are encountered as by-products, thought to be formed from tribromonitromethane and calcium nitrite (318). Tribromonitromethane is also obtained in the hydrolysis of compounds containing nitro groups and bromine (29) and by decarboxylation of ' 'hexabromotrini tro valeric" acid (371). A general analytical procedure for aromatic compounds consists of exhaustive nitration, treatment with hypobromite, and reduction of the tribromonitromethane formed to me thy lamine (31).…”