Journal . lled in a firi-clay tubular rctiut, c umectedwith a tightly-dosed receiver, containing a little paralbnoil to ensure a non-oxidising atmospht-re. ami also providedwith au escape pipe for the carbonic oxide.—W. G. M. XL-ELECTRO-CHEMISTRY AND ELECTRO-METALLURGY. A Iollameter. Zeits. f. 1888, 206. TiiK voltameter here described is applicable for imiisiiriiigsmall elcctrii- currents, ^ueb as are employed for electro-lytic purposes. The vertical tube .\ holds 30 ee., and isdivided in 0-2 cc. The top end of the lube is fnnnel-sbaped and can be closed by a ground plu
Journal . lled in a firi-clay tubular rctiut, c umectedwith a tightly-dosed receiver, containing a little paralbnoil to ensure a non-oxidising atmospht-re. ami also providedwith au escape pipe for the carbonic oxide.—W. G. M. XL-ELECTRO-CHEMISTRY AND ELECTRO-METALLURGY. A Iollameter. Zeits. f. 1888, 206. TiiK voltameter here described is applicable for imiisiiriiigsmall elcctrii- currents, ^ueb as are employed for electro-lytic purposes. The vertical tube .\ holds 30 ee., and isdivided in 0-2 cc. The top end of the lube is fnnnel-sbaped and can be closed by a ground plug Hi (/, thecontinuation of which forms a small thermometer e;(•represents the two platinum electrodes, one of which isbent in a right angle round the other. The overflowtube H is bent downwards and connected by india-rubbertubing with the levelling vessel H, which readily slides upand down on au upright. The apparatus is filled with . so, THE JOURNAL 01 THE SOCIETY OF CHEmCAL INDUSTRY. 441. (liliitt Milplimio lu-id f lU s|i. gr. (2i> piT ,ir.)- IO tk-itrolytic work elerlric uuniiit i>measured with Miffieieut accunicy b_v ^iiiiplj- leinliii;; offth»* iH*. of owhvdrogen lit equal levels iti both tubes;fcr aceui-ate drteruilnatious the amount of pas evolved mustbe rctluccd to 0 C. and tiO mm. pressure b_v tlie followingfurmulH;— ! - (/.0-88)^ where yexpresse!- the \apour tension of water at I C, and_/.088 expre>se3 the tension of dilute «ulphurii aeiu ofri4 sp. gr. The figure obtaiued for V, divided by10-436 (1A=10436 ee. oxrhydrogen pa^ at U (. and760 mm.) gives the .strength of the electiie current inamperes.—8. H. IATENTS. Improved Mcuiis nf Oxidising and Decompoeing hijEiectriitil Ailiuii Oiiiiniic Mailer and fuorganic SailsIII Seuayc, Water, and other Lii/uids. W. Webster, jun.,Lee. Eng. Pat. 1333, January 27, I8S7. (*</. Tub invention is for electrohtieally oxidising and pre-cipitating organic matter, and de
Size: 1111px × 2248px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1880, booksubjectchemist, bookyear1882
