Manufacture of acetic acid

• Publisher: Wiley (John Wiley & Sons)
• Year: 1921
• Weight: 411 KB
• Volume: 40
• Category: Article
• ISSN: 0368-4075
• DOI: 10.1002/jctb.5000401803

✦ Synopsis

produce over 200 tons of soot during wintcr morn-~n g s bctwccn G a.m. nnd 9 a.m., nnd that s d i all ninonnt ~rould suffice t o roduco n dense snioli~ fog. ~~i o nut~ior is now worCing out n ncm nnd very scnsiti~c iiictliod of mcnsur~ng siispcndcd impurity by cnusing n sninll jct of nir t o striltc ngni~ist n glass surkico ivhicli can bo rcmovcd, nioiuitcd for microscopic csnininntion, nntl prcscrvcd for refcr-CIICC. Undcr tho niicroscopo i t is found tlint tho pnrticlcs suspendcd in London nir nro blnck and incnsiiro from 0% t o 1p; siicli very finely divided pnrticlcs linro pmcticnlly tho snmc pcnctrnting poacr ns n gas. In opposition to tlio coninion bclicf thnt cspircd air is frcc fronl suspcndcd mnttcr, tho :iiitlior lins fonnil that about 70 pcr ccnt. of tho sooty ninttcr inlinlcd with London nir is crlinlcd during ordinary Iircn tliing. 3fr. ~'ii\i:im 'l'liomson, of B[nnclicstcr, discussed tho pollutcd condition of tho air i n tlrnt city. It rvns cnfcnlatcd that nbout 81,000 000 wns losf, nnnually throiigli tho smoky ntmosp~icrc, nnd tlint tho suni rcqiiirctl for clcnning cliinincys nlono wns not less tlinn C100,OOO. It ~voulcl pay i\Innclicster to inrcst ;C1O,OOO,OOO in smoke-prcrcntion. Tho solritioii , 110 thought, was to us0 3 sniokclcss fucl i n donicstic grates. On tho nfternoon of the first day Prof. G. nnrgcr gnvo n dcnionstration of tlic micro-nnnlysrs of cornpounds contnining cnrbon, Iiydrogcn, nnd nitrogon. lkportu c t ~t t l C o n i ~~i i t t e e s . 'l'lio roport prcscntcd by tlic Fuel l":o~ion~y COIIIinittco wns n very short onc, oming to tlio rcccnt sovcro illncss of i t s clinirinnn, Prof. I'. A. Dono.