A new form of extraction apparatus and reflux condenser

✍ Scribed by Chattopadhyay, Probodha Chundra

• Publisher: Wiley (John Wiley & Sons)
• Year: 1913
• Weight: 242 KB
• Volume: 32
• Category: Article
• ISSN: 0368-4075
• DOI: 10.1002/jctb.5000322406

✦ Synopsis

Thwo analpas lieom to show that thoro in no relation betwcon tho porcantagcw of tho various constituents of tho ash ~d the fusing tamperaturo. Therefore a chemical analysis M nf no value to arrivo at aconilusionregarding tho olinkeringqualityof aconL It msybenotod that,although an ulh with a vory low iron contont soom to givo the havi3 hig rut fusing ulh, no dofinito fusing tompratiire fita a dofinita prcentago. and whon tho iron content goer be ond 10 cont. the fusion tomperaturn cannot be ju&d at a . That the sulphur content of tho coalhas no bearing what.oever upon tho futlibilityof thossh isalso apparent. Tho writer intend. to oantinuo this investigation on CODIS from other Y)UH)OI t h n Ponnfiylvania with tho objeol of determining whothor them m y not bo B O ~O having pnicthll no iron and showing a low fusing ash. Kim t t sulphur occurs in coal combined eitlwr with iron. limo, or tho hydmoarbons, them naturally oxht innumonblo combinations. and for this reason tho sul hur oontent oannot be UNA as an indox to ohkcring. bn1