"SDN:P07::CF12N348" . . . . . "SDN:P07::CF12N348" . "3" . . . . "SDN:P07::CF12N348" . "\"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 carbon tetrachloride is CCl4. The IUPAC name for carbon tetrachloride is tetrachloromethane."@en . "2019-04-08 18:14:12.0" . . "mass_fraction_of_carbon_tetrachloride_in_air"@en . "3" . "" . "2019-04-08 18:14:12.0" . . "accepted"@en . . . "false" .