Journal . aratus for ten miuules after the reaction is atan end. The carbonic acid is estimated by direct weighing. Aseries of experiments yielded very satisfactorily results.— F. KjddaUs Method of Estimating Xilrogeii. F. W. Dafert. I^andw. Vcrsuchsstation, 1887, 34, author has estimated the nitrogen in various organiccompounds by Kreuslers mo<lification of KjeldalJs the analysis of a volatile liquid it is weighed in a sealedbulb having the form shown in the figure ; the poiut a isthen broken off, and the bulb placed in the acid mixture sothat b dips uniler the surf
Journal . aratus for ten miuules after the reaction is atan end. The carbonic acid is estimated by direct weighing. Aseries of experiments yielded very satisfactorily results.— F. KjddaUs Method of Estimating Xilrogeii. F. W. Dafert. I^andw. Vcrsuchsstation, 1887, 34, author has estimated the nitrogen in various organiccompounds by Kreuslers mo<lification of KjeldalJs the analysis of a volatile liquid it is weighed in a sealedbulb having the form shown in the figure ; the poiut a isthen broken off, and the bulb placed in the acid mixture sothat b dips uniler the surface. When heat is appliedgradually, the contents distil very slowly into the acid, andare acted upon as completely as possible. From results obtained iu a number of experiments, theauthor states that—(1) Kjeldahls method in its originalffirm is not suitable for the estiinntion of nitrogen in nil compounds; (3) ammonia is formed by the action of con-centrated sulphuric acid and potassium permanganate on.
Size: 1394px × 1793px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
