. . . "false" . "2019-02-04 14:52:10.0" . "2" . "" . . . "2" . "mole_fraction_of_ammonia_in_air"@en . . "SDN:P07::CF12N513" . . . "accepted"@en . . . "2019-02-04 14:52:10.0" . "SDN:P07::CF12N513" . "\"Mole fraction\" is used in the construction \"mole_fraction_of_X_in_Y\", where X is a material constituent of Y. 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 for ammonia is NH3."@en . "SDN:P07::CF12N513" .