. . . . . . . . . "SDN:P07::CFV8N10" . "" . "mole_fraction_of_atomic_bromine_in_air"@en . "accepted"@en . "Mole fraction is used in the construction mole_fraction_of_X_in_Y, where X is a material constituent of Y. The chemical symbol of atomic bromine is Br."@en . . .