Technical education applied to the training industrial chemists

✍ Scribed by Rintoul, W.

• Publisher: Wiley (John Wiley & Sons)
• Year: 1934
• Weight: 318 KB
• Volume: 53
• Category: Article
• ISSN: 0368-4075
• DOI: 10.1002/jctb.5000534204

✦ Synopsis

CIIEMISTRP AiiD INDUSTRY

in onc c:isc (test picce) tlicrc was Iircsciit :ipprosiiiintcly IGOO p. of trir pcr sq, clni. of iiictnl siirfiicc, wliilr in tlie othcr ciisc (still) thcrc XIS prcsciit only nliout 1%) g. of t i i r pcr sq. dm. of iiictnl surf:icc. l i i tlic foriiirr case it is cvitlciit tlint tlic corrosive ngcnt is iii 1:irgc rsccss coiiil)nrcd with tlic I:ittcr, niid will tlicrcforc Icrid to n liiglicr corrosioii figiirc per unit nrcii of iiirt:il. As, Iio\vcvcr, tlir size of ii tnr still is iiicrcnsctl tlic wiglit of tlie clirirgc pcr iiiiit iircii \ill iilso iiicrcrisc urit il iii i i 12-1011 still it is of thc siiiiic orclcr ns in oiir stiiiitlrirtl test ; this c.splniiis the ngrceinciit o1)t:iiiicd I)et\ww t hc rcsiilts

(2'0 be CON

TECHNICAL EDUCATION

of certain works cspcrimcnts wid OW laboratory corrosioii tests.

From tlicsc cspcriiiiciits it seeins fairly clcnr thirt :iprt, froin gross ovcrlirnt iiig, direct Iicntiiig of tlic iiietril tlocs iiot grciitly iiifluciicc corrosioii. In tlic works, Iio\vcvcr, t lie st ill Iiot toiii will I)cconic grritliinlly covered with ii liiyer of Ii:irtl part iiilly cokcil pitch niitl cnrlioii, iiiitl irisiilliriciit ly frequent clcniiii1g will lciitl to csccssivc fires to iii:iiiitiiiii tlic tlistillntion i i i i d so to overtierit iiig. Sricli gross owrlirntiiig is r:ire, iiiitl criiiriot I J c o-crlookt*tl owiiig to tlie tlistortioii of t he still bot toiii.