The Romance of Modern Chemistry
Forfatter: James C. Phillip
År: 1912
Forlag: Seeley, Service & Co. Limited
Sted: London
Sider: 347
UDK: 540 Phi
A Description in non-technical Language of the diverse and wonderful ways in which chemical forces are at work and of their manifold application in modern life.
With 29 illustrations & 15 diagrams.
Søgning i bogen
Den bedste måde at søge i bogen er ved at downloade PDF'en og søge i den.
Derved får du fremhævet ordene visuelt direkte på billedet af siden.
Digitaliseret bog
Bogens tekst er maskinlæst, så der kan være en del fejl og mangler.
FATS AND OILS
that they both use fats as their raw material, and turn
out glycerine as a by-product. Until the last quarter
of a century, however, comparatively little attention
was paid to this latter material; the soap-maker, indeed,
simply ran the spent liquors containing the glycerine,
lyes, as they are called, into the nearest water-course.
Nowadays, because of its use in the manufacture of
nitio-glycerine for dynamite and blasting gelatin, glycerine
has become a valuable product, and successful efforts
have been made to recover it from the spent liquors
of the soap-works. This utilisation of what was formerly
run to waste has, of course, cheapened the production of
soap. Indirectly, therefore, the discovery and manufac-
ture of nitro-glycerine and the explosives into which
this dangerous substance enters may be regarded as
promoting cleanliness.
It has been stated on good authority that the flourish-
ing condition of the soap industry in this country has
been chiefly due to the profits arising from the recovery
of the glycerine. In any case, there is no doubt that
the utilisation of waste products is very often of the
greatest importance to the industry concerned. More
than that, the history of by-products is a subject of
the most fascinating interest even to the general reader,
and a subsequent chapter will accordingly be devoted
to this matter.
247