. Manual of physico-chemical measurements. paraffin oil, or any other suitable liquid. The condensed liquid is returned through an inverted siphon-shaped tube, as shown in Fig. 32. This somewhat complicatedarrangement may, however, be dispensed with, if the condenser tubeis wide enough, and placed in such a positionthat its whole section cannot be closed by theliquid. To prevent this it is advisable to beveloff the end. A hole (indicated in Fig. 31) nearthe lower end of the condenser is very effectual;even if the lower opening should be closed bythe liquid, it allows a free passage to the vapo
. Manual of physico-chemical measurements. paraffin oil, or any other suitable liquid. The condensed liquid is returned through an inverted siphon-shaped tube, as shown in Fig. 32. This somewhat complicatedarrangement may, however, be dispensed with, if the condenser tubeis wide enough, and placed in such a positionthat its whole section cannot be closed by theliquid. To prevent this it is advisable to beveloff the end. A hole (indicated in Fig. 31) nearthe lower end of the condenser is very effectual;even if the lower opening should be closed bythe liquid, it allows a free passage to the vapour,and so entirely prevents the accumulation ofliquid in the condenser tube. The bottom of such vessels very soon showssigns of being attacked at the places which arein direct contact with the flame, the sulphuricacid from the sulphur compounds contained inthe coal-gas being very destructive. These places, therefore, shouldbe protected with asbestos paper stuck on by means of water-glass; 1 Zeitschriftfarphydkalische Chemie, 9, 767, Fig. 31.
Size: 1744px × 1433px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, bookpublisherlondo, bookyear1894
