CHEMICAL GERMAN 243 



unterchlorige Saure, /., hypochlorous acid, 

 unterphosphorige Saure, f. f hypophosphorous acid. 

 Unterricht, m., teaching, instruction, 

 untersuchen, t., to investigate, 

 unterscheiden, t., to distinguish. 

 Untersuchung, /., -en, investigation, research, 

 unterweisen, t., to instruct. 

 unterwerfen, f. t to subject, 

 unwiderleglich, irrefutable. 

 unzahlig, numberless. 

 unzerlegbar, not decomposable, 

 unzutraglich, disadvantageous, prejudicial. 

 Unzutraglichkeit, /., disadvantage; harmfulness. 

 Uran, n. } uranium. 

 Urgestein, n ., primary rock. 

 Ursache, /., -n, cause. 

 Ursprung, m., -spriinge, origin. 

 Urstoff, m., primitive matter. 



Urtitersubstanz, f. t -en, a substance regarded as standard for determining 

 the titer of solutions for volumetric analysis. 



Valeriansaure, /., valerianic acid. 

 Vanadin, n.. 



Vanadium, n .. J vanadium - 



Vanadinsaure, f. t vaiiadic acid. 



vegetabilisches, Alkali, vegetable alkali, potash (obs.). 



Ventil, n., -e, valve. 



veranderlich, variable. 



Veranlassung, /., incentive, motive. 



verarbeiten, t., (auf oder zu), to manufacture into (e. g., common salt 

 into soda ash). 



Verarbeitung, /., manufacturing. 

 _ verbergen, t., to conceal. 



verbessern, t., to improve. 



verbinden (sich mit), to combine with. 



Verbindung, f. f -en, compound; the act of combination; connection. 



Verbindungsgewicht, n., -e, combining weight. 



Verbrauch, m., consumption. 



Verbreitung, /._, spreading; diffusion. 

 i verbrennlich, combustible. 

 Verbrennung, f., combustion. 

 iVerbrennungsanalyse, /., combustion analysis. 



