£45 or $70 or 54 Euros Postfree-By-Airmail Worldwide

Published by Iliffe Books Ltd, London, 1968; 185 pages, including tables, bond structures, formulae, references  and subject index; 17.5 X 25cm; "Very Good+" brown/marble effect/gilt cloth hardback with library  ownership stamp on verso of title page and small 5-digit stamp on  front flyleaf. ***  "Sodium hydride has been known since the year 1878. As a  chemical, however, it appeared for the first time on the market  as late as about 1937. This substance, originally interesting  from the viewpoint of theoretical chemistry only, has become,  within a relatively short time, a basic chemical of a new field  the chemistry of complex hydrides. Of considerable technological  significance also was the discovery that sodium hydride is highly  effective in the deoxidation of metal surfaces and in this  respect affords one of the most economic procedures. The application of sodium hydride in organic chemistry is highly  promising. Although already several hundred successful  applications in this field have been published, sodium hydride  continues to be a substance almost unknown to chemists. Mentions  of its use are so widely scattered in the literature that it is  difficult to find them. Even the entry sodium hydride is referred  to in the abstract literature only if the entire paper is  concerned with this agent. This may be just the reason why sodium  hydride has so far been regarded by organic chemists as a mere  laboratory curiosity without great significance, although a  number of findings were summarized in the reports of Hansley and Banus, as well as in publications of manufacturers. The  outstanding properties of sodium hydride were not recognized  immediately. Different opinions as to its efficiency were  influenced by the quality of the hydride available to individual  experimenters. In particular, the sodium hydride employed at the  beginning of the fifties was often relatively coarse-grained and  of poor chemical purity and reactivity. Since that time, there  have appeared not only uniform fine dispersions of sodium hydride  in liquid paraffin, but also a dry pulverous hydride with an  extraordinarily large specific surface, either of which is  considerably more effective. At present, it is beyond any doubt  that sodium hydride has become one of the most useful agents,  converting even extremely weak acids into salts, which permits  not only their subsequent alkylation or acylation, but also the  condensation of substances with activated hydrogen on carbon with  most diverse types of carbonyl compounds." *** A decent crisp/clean copy of a scarce item.

~View Cart Contents Our £ price is definitive; Euro and $ equivalents are approximate.

<A HREF="http://www.parki.co.uk/546ar36b.htm">

</A>

I've been told also that Gerard Swarbrick invented Appledore cheese. Is that so? You can now buy it at Grandma Singleton's cheese shop just by Preston market. ... Taken From Today's Home Page Jottings.