nitrometer

[Lat. nitrum =niter, and Gr. metron a measure.] An instrument for determining the quality or value of niter. IMG:content-0073.png:[blocks in formation] ni-troph-tha-lēne, s. [Pref, nitro- (2), and It melts at 48°,, begins to boil at 280°, and distills over between 300° and 320°.