Excerpt from Transactions of the American Institute of Chemical Engineers, 1912, Vol. 5 If we first produce the pure crystalline phenol-alcohol, contain ing no excess Of phenol, for instance crystalline saligenin or oxybenzyl-alcohol, and if we heat it gently, it will simply dehydrate and be transformed in a fusible mass which on cooling, solidifies to a resinous product - a fusible saliretin resin. The latter, submitted to the further action of heat, polymerizes and becomes an infusible, insoluble saliretin. This polymerization is facilitated, by the pres ence of small amounts of catalyzers, for instance, hydrochloric acid. The presence of an excess of phenol retards polymerization; hence the infusibility induced by polymerization will be retarded, and this, until some way or another the excess Of phenol has been expelled. The infusible polymerized saliretin obtained by heating phenol-alcohols containing no free phenol, or by heating fusible saliretin containing no free phenol, is insoluble in alcohol, but swells in acetone; it softens decidedly on heating, although it is no longer fusible. Longer heating does not harden it further, nor make it more resistive. It is harder, stronger, and more resistant to physical and chemical agents than the fusible saliretin from which it is derived; in this respect, it surpasses even more the soluble fusible resins described by Blumer, delaire, Baekeland, and called phenol resin by Aylesworth. But even after polymerization or hardening has been carried as far as possible, it is considerably less hard and less strong and less resistant to physical and chemical agents than the polymerization products resulting from the reaction of phenol on a sufficiently large proportion of formaldehyde or equivalent substances. In order to obtain the latter polymerization products of maxi mum strength. Hardness, and maximum resistivity, an adequately larger amount of methylen group must be introduced before or dur ing the act of polymerization. The introduction of this methylen group may be accomplished by at least three distinct methods. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Excerpt from Transactions of the American Institute of Chemical Engineers, Vol. 12: Part II, 1919 The American Institute of Chemical Engineers is composed of men who are, above all, intensely practical: men who make it their like work to apply chemistry to useful ends. We have come to Savannah not merely to enjoy a proverbial and graciously extended hospitality, but chie y because we recognize that here there is much for us to learn. Your cotton oil mills, your great fertilizer fac tories, the secrets of your naval stores industry, the doors of many plants distinctively Southern in their type have been generously Opened to us. We Shall take with us on our return new and endur ing impressions of Southern courtesy and kindliness, convincing evi dence of the magnitude of industrial achievement in the South, and a new appreciation of the wealth of resource and of opportunity in this supremely favored section of our country, but our mission will have failed unless we leave behind us a message so vital and direct in its importance that it secures and holds your attention and thereafter in uences your action. It is no new message: it is the same in import as that carried by the American Electrochemical Society on its Southern tour in 1918; it was voiced and developed by many authorities of national reputation in the remarkable issue of September 14, 1916, of the Manufacturers Record; it has appeared on many editorial pages and in many government publications, and I myself have had the privi lege of bringing it to representative bodies of Southern scientists and business men. And that message in a word is this: The Future of the South is in Chemistry. To ensure acceptance any such general thesis properly requires demonstration. Suppose we begin by considering for a moment what the South already owes to chemistry. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works."

Excerpt from Transactions of the American Institute of Chemical Engineers, 1920, Vol. 13: Part I The paths of the early workers on electrolytic cells were not strewn with roses. They were very rocky. I speak from experience for I think I have been continuously in the business longer than any other man in this country. In September, 1894, I went to work for the old Electrochemical Company of Rumford Falls, Maine, as a laborer, 20 months later I was made superintendent of the plant, and have held that position there, and subsequently in Berlin for the Brown Company. That makes 26 years of experience. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Excerpt from Transactions of the American Institute of Chemical Engineers, 1908, Vol. 1 First - The proposed organization should be called the American Institute of Chemical Engineers. Second - The Institute should not attempt the publication of a journal, but should confine its publications to a volume or volumes of transactions. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Excerpt from Transactions of the American Institute of Chemical Engineers, Vol. 14: 1921-22 Sulphuric acid is universally concentrated by the application of heat. The first interest of the designer of apparatus to concentrate sulphuric acid must hence lie in the thermal properties of sulphuric acid. Several articles have been written on this subject, and one of them at least has treated the subject very thoroughly and comprehensively. The results, however, are not most conveniently expressed, and the original article is not particularly accessible. This, then, must be the excuse for the present attempt to present an old subject from a different viewpoint. The first thermal property of sulphuric acid which interests us is its specific heat. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Excerpt from Transactions of the American Institute of Chemical Engineers, Vol. 3: 1910 About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Excerpt from Transactions of the American Institute of Chemical Engineers, 1915, Vol. 8 The rainfall varies from almost nothing in the desert regions to 50 and 60 inches per annum in the northwestern counties of California. With but few local exceptions the climate is divided into a short wet period and a relatively long dry Spell, but the large streams of central and northern California flow the entire year, fed by the everlasting snows of the high Sierras. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.