
QGZKDVFQNNGYKY-OUBTZVSYSA-N ammonia-15N Chemical compound QGZKDVFQNNGYKY-OUBTZVSYSA-N 0.000 description 1.229910052757 nitrogen Inorganic materials 0.000 description 21.IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 44.



DE4406049A1 - Fractional distillation system for pure argon from air
