CHEMICAL GERMAN 22Q 



nitrieren, t., to nitrate, to produce a nitrocompound by the action of 



nitric acid. 



Nitrierung, f. f nitration. 

 Nitrognippe, /., nitrogroup. 

 Nitrokorper, m., -, nitrocompound. 

 Niveau, n., level or height of a column of liquid. 

 Niveaurohre, f., -n, leveling tube, a glass tube connected with a Hempel 



(or other form of) gas burette and used to control the water level 



in the latter. 



; 'Nomenklatur, /., nomenclature. 

 Nonius^ m., vernier. 

 Norm, /., -en, standard. 



normal, normal ; conformable to a standard. 

 Notizbuch, n . f -biicher, note book. 

 Nuance, /., -n, shade of color. 



niitzlich, useful. 



Nullpunkt, m., -e, zero point. 



Nutsche, /., -n, suction pump, as used for filtration. 







Oberflache, /., -n, surface. 

 ^^ obwalten, i, t to prevail, to predominate. 



(Jcker, m., ochre, clay having a color due to oxide of iron. 



offnen, t., to open. 



Ohl, obsolete form for 01, oil. 



61, n., -c, oil. 



olbildendes Gas, olefiant gas, ethylene (obs.). 



olsaure, /., see Oleinsaure. 



Ose, f. t -n, staple; loop; the looped platinum wire of an explosion 



eudiometer. 

 offenbar, obviously. 



offiziell, official; officinal (of medicines). 

 Oktaeder, n ., -, octahedron. 

 Oleinsaure, f. f oleic acid. 



Oleum, n., fuming sulphuric acid, oil of vitriol. 

 Ordnung, /., -en, order; class. 

 \organisch, organic. 



orientieren, i. f sich, to ascertain one's bearings. 

 Orthoverbindung, /., orthocompound. 

 Osmiumsaure, f. f osmic acid. 

 Oxalsaure, /., oxalic acid. 



Ozyd, n., -e, oxide; -ic oxide {e. g., Eisenoxyd, ferric oxide). 

 Oxydationsstufe, /., -n, degree of oxidation, 

 oxydierbar, oxidizable. 

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