Testo e traduzione della pubblicità


Testo in inglese:

FLUORINE COMPOUNDS - INCREASING USE IN INDUSTRY

-catalysts
-refregerants
-lubrificants
-plastics
-insecticides

ANHYDROUS HYDROFLUORIC ACID - HYDROFLUORIC ACID - BORON TRIFLUORIDE - BENZOTRIFLUORIDE - FLUOSULPHONIC ACID

Now that the technical difficulties encountered in the manufacture of Fluorine compounds have been overcome, new fields of chemistry can be exlored. Fluorine-containing refregerants, plastics, insecticides and intermediates all show great industrial promise. The above-mentioned compounds are of value in the manufacture of such fluorinated materials, and are available in commercial quantities. Our reserch department would be pleased to advise on any technical queries regauaring the use of Fluorine compounds.

IMPERIAL SMELTING
A PIONEER IN THIS CHEMICAL FIELD
IMPERIAL SMELTING CORPORATION (SALES) LIMITED - DOVER STREET - LONDON - W.1


Traduzione testo:

COMPOSTI DEL FLUORO - CRESCENTE USO NELL'INDUSTRIA

-catalizzatori
-refrigeranti
-lubrificanti
-plastiche
-insetticidi

ANIDRO ACIDO FLUORIDRICO * - ACIDO FLUORIDRICO – TRIFLUORURO DI BORO –BENZOTRIFLUORIDE** –ACIDO FLUOROSOLFONICO
Ora che le difficoltà tecniche incontrate nella produzione dei composti del fluoro sono state superate, nuovi campi della chimica possono essere esplorati. Refrigeranti, plastiche, insetticidi e prodotti intermedi contenenti fluoro mostrano tutti una grande promessa industriale. I sopracitati composti giocano un ruolo importante nella produzione di materiali fluorurati, e sono a disposizione in quantità commerciali. Il nostro dipartimento di ricerca è lieto di risponde a qualsiasi informazione tecnica riguardante l’uso dei composti del fluoro.
IMPERIAL SMELTING
UN PIONIERE IN QUESTO CAMPO CHIMICO
IMPERIAL SMELTING CORPORATION (DIPARTIMENTO VENDITE) LIMITED- DOVER STREET - LONDON - W.1


*con la dicitura anidro si indica che l’acido fluoridrico non è diluito e quindi concentrato
**noto anche come trifluorotoluene

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Acido fluorosolfonico

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Prima fonte, Cambridge University, F. Greenaway

Da pagina 294 a pagina 296:   A History of the Zinc Smelting Industry in Great Britain. By E. J. Cocks and B. Walters . London: Harrap. I968. Pp. vi+224, 42 illustr. /j2.75. The final words of the preface to this book arouse expectations: " Coal, iron, steel, textiles and railways have appeared to monopolise the attention of industrial historians hitherto, and a great deal more information on the development of the non-ferrous metals and chemical industries would help towards correcting the rather distorted picture that the average textbook gives of our continuing Industrial Revolution."  If this book fails to live up to the implied ambition to produce a revealingf work, it is because it is a piece d'occasion tied too tightly for historical perspective to the event which produced it, namely, "the 50th anniversary of the first beginnings of what is now the Imperial Smelting Corporation Limited, the group which has been, since 1933, the sole processo...
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Testo terza fonte, Clark University, F. Walker

Pagine 180-181: Local zinc first became important during the 17th century when it was used in manufacture of brass along with Cornish copper which could be bought very cheaply at the period as a bye-product of the gold, silver and tin mining and which was easily shipped to It was during the 18th century however that manufacture of lead, brass and zinc developed most rapidly in Bristol. By the middle of the century there was a large lead-producing plant near Hotwells and in 1752 the making of lead shot was commenced in Bristol and still remains as a specialised local industry. The large scale production of zinc commenced in 1743 at Warmley , whilst Cornish copper was smelted in Bristol to supply the local brass in dustry which in the later half of the century expanded to such an extent that it was producing half the total British output of brass wire. In the 20th century production and use of brass and copper has declined though there are still a number of firms in Bristol engag...
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