"3" . "mass_fraction_of_cfc113_in_air"@en . . "3" . . . . . . . . . "SDN:P07::CF12N350" . "2019-05-14 17:27:19.0" . "SDN:P07::CF12N350" . "false" . "\"Mass fraction\" is used in the construction \"mass_fraction_of_X_in_Y\", where X is a material constituent of Y. It means the ratio of the mass of X to the mass of Y (including X). A chemical or biological species denoted by X may be described by a single term such as \"nitrogen\" or a phrase such as \"nox_expressed_as_nitrogen\". The chemical formula of CFC113 is CCl2FCClF2. The IUPAC name for CFC113 is 1,1,2-trichloro-1,2,2-trifluoroethane."@en . "2019-05-14 17:27:19.0" . . "SDN:P07::CF12N350" . "" . "accepted"@en .