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Author : Hugo Lieber
Publisher :
ISBN 13 :
Total Pages : 160 pages
Book Rating : 4.:/5 (89 download)
Download or read book The Use of Coal Tar Colors in Food Products written by Hugo Lieber and published by . This book was released on 1904 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hugo Lieber
Publisher :
ISBN 13 : 9781332208586
Total Pages : 160 pages
Book Rating : 4.2/5 (85 download)
Download or read book The Use of Coal Tar Colors in Food Products (Classic Reprint) written by Hugo Lieber and published by . This book was released on 2015-08-05 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Use of Coal Tar Colors in Food Products The Use of Coal Tar Colors in Food Products was written by Hugo Lieber in 1904. This is a 150 page book, containing 30105 words and 11 pictures. Search Inside is enabled for this title. 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.
Author : Bernhard Conrad Hesse
Publisher : Forgotten Books
ISBN 13 : 9780265649374
Total Pages : 234 pages
Book Rating : 4.6/5 (493 download)
Download or read book Coal-Tar Colors Used in Food Products (Classic Reprint) written by Bernhard Conrad Hesse and published by Forgotten Books. This book was released on 2017-10-23 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Coal-Tar Colors Used in Food Products For the purposes of the investigation reported in the following pages, the legitimacy of the coloring of food and food products under certain conditions is regarded as established; the ethical and dietetic aspects of the question of food coloring are not here considered. The means at hand for coloring food products may be conveniently classified as vegetable, animal, mineral or inorganic, and synthetic or so-called coal-tar colors or dyes. Representatives of each of these have at one time or another all been used in the coloring of food, and the laws of various European and American States have, from time to time prohibited the use of certain specified members or all of each or some of the foregoing classes. It is therefore obvious that even for the legitimate purposes for which food can be colored, improper means are at command, and some of these, if not all, have been prohibited by law at some time or another. 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.
Author : Hugo Lieber
Publisher :
ISBN 13 : 9781363791361
Total Pages : 162 pages
Book Rating : 4.7/5 (913 download)
Download or read book USE OF COAL TAR COLORS IN FOOD written by Hugo Lieber and published by . This book was released on 2016-08-27 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hugo [From Old Catalog] Lieber
Publisher : Palala Press
ISBN 13 : 9781355606819
Total Pages : 156 pages
Book Rating : 4.6/5 (68 download)
Download or read book The Use of Coal Tar Colors in Food Products written by Hugo [From Old Catalog] Lieber and published by Palala Press. This book was released on 2016-05-05 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author : United States Department Of Agriculture
Publisher : Forgotten Books
ISBN 13 : 9780331384246
Total Pages : 20 pages
Book Rating : 4.3/5 (842 download)
Download or read book Certification of Coal-Tar Food Colors (Classic Reprint) written by United States Department Of Agriculture and published by Forgotten Books. This book was released on 2017-11-18 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Certification of Coal-Tar Food Colors Upon receipt of the sample and properly executed affidavits and agreement by the Bureau of Chemistry, the sample is examined chemically if the foundation affidavit indicates that the dye is of proper identity and fiurity. If the results obtained substantiate the claimed identity of t e dye and its com lianc'e with the standards of purity, a certificate assi ning a lot num er to the batch is'issued by the bureau to the manu acturer. If the bureau's examination shows that the product does not conform to the requirements for certifica tion, the batch is rejected for use in foods. The chemical examina tion and the certification or rejection of the batch usually take approximately two weeks. 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.
Author : Bernhard Conrad Hesse
Publisher : Palala Press
ISBN 13 : 9781354378816
Total Pages : 230 pages
Book Rating : 4.3/5 (788 download)
Download or read book Coal-Tar Colors Used in Food Products written by Bernhard Conrad Hesse and published by Palala Press. This book was released on 2016-04-23 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work.This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author : Theodor Weyl
Publisher : Forgotten Books
ISBN 13 : 9780364030370
Total Pages : 178 pages
Book Rating : 4.0/5 (33 download)
Download or read book The Coal-Tar Colors written by Theodor Weyl and published by Forgotten Books. This book was released on 2018-03-06 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Coal-Tar Colors: With Especial Reference to Their Injurious Qualities and the Restriction of Their Use For the more accurate and satisfactory representation, I have had engraved a hexagon matrix, types cast from which have been used in the ring symbols. It will be a source of gratification to the practical sanitarian to note the comparatively small proportion of really injurious colors, for even with some of those which produce marked toxic symptoms such large doses are required as to make it unlikely that serious results could occur by accident. The coloring power of these bodies is so high, as a rule, that almost inappreciable proportions are required for coloring articles of food, ' so that acute effects, at least, are impossible. A manufacturing confectioner of this city, for whom I make examinations of colors used by him, informs me that a yellow color sold as auramine, has such high tinc torial power that one ounce will color two thousand pounds of candy to the highest yellow tint required in his business. It is obvious that the toxic dose of such a body would have to be very high to render it harmful in such use. A very interesting feature of the present essay is the summary of the existing legislation on the topic in the more progressive countries in Europe. We have here presented almost every method of reaching the end in view, viz., the protection of the public health without interfering with legitimate trade interests, from the practically absolute law-making power of Germany based on imperial will, to the constitutional system of England, with its reliance on the merits of each individual case. It is cer tain that none of the plans is even approximately satisfactory, and the problem will be even more difficult of solution in the United States indeed, it seems to me to be unsolvable. Possi bly the simplest and most satisfactory method would be to forbid absolutely the use of any artificial color in certain food articles with which such coloration is likely to deceive the user as to quality or condition, and to require in all other cases that the name and amount of color should be placed on the package. 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.
Author : Bernhard C. Hesse
Publisher :
ISBN 13 :
Total Pages : 228 pages
Book Rating : 4.:/5 (25 download)
Download or read book Coal-tar Colors used in food products written by Bernhard C. Hesse and published by . This book was released on 1912 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bernhard Conrad Hesse
Publisher : Wentworth Press
ISBN 13 : 9781361390696
Total Pages : 238 pages
Book Rating : 4.3/5 (96 download)
Download or read book COAL-TAR COLORS USED IN FOOD P written by Bernhard Conrad Hesse and published by Wentworth Press. This book was released on 2016-08-25 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author : Bernhard Conrad Hesse
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.3/5 (91 download)
Download or read book Coal-tar Colors Used in Food Products written by Bernhard Conrad Hesse and published by . This book was released on 1912 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Bernhard Conrad B. 1869 Hesse
Publisher : Wentworth Press
ISBN 13 : 9781361391006
Total Pages : 234 pages
Book Rating : 4.3/5 (91 download)
Download or read book COAL-TAR COLORS USED IN FOOD P written by Bernhard Conrad B. 1869 Hesse and published by Wentworth Press. This book was released on 2016-08-25 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.
Author : E. De Barry Barnett
Publisher : Forgotten Books
ISBN 13 : 9780267992300
Total Pages : 268 pages
Book Rating : 4.9/5 (923 download)
Download or read book Coal Tar Dyes and Intermediates (Classic Reprint) written by E. De Barry Barnett and published by Forgotten Books. This book was released on 2018-02-07 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Coal Tar Dyes and Intermediates The next year, 1864, saw the introduction Of the first azo colour (bismarck brown), although it was not until twelve years later that the full importance Of this discovery was recognized, by which time Griers and Kekule had published their work on the constitution Of the diazo and azo com pounds. 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.
Author : L. G. Beers
Publisher :
ISBN 13 :
Total Pages : 158 pages
Book Rating : 4.:/5 (385 download)
Download or read book The Identification of Coal Tar Colors in Food Products written by L. G. Beers and published by . This book was released on 1909 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Joseph Alfred Ambler
Publisher : Forgotten Books
ISBN 13 : 9780483575752
Total Pages : 46 pages
Book Rating : 4.5/5 (757 download)
Download or read book Chemistry and Analysis of the Permitted Coal-Tar Food Dyes (Classic Reprint) written by Joseph Alfred Ambler and published by Forgotten Books. This book was released on 2018-03-19 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from Chemistry and Analysis of the Permitted Coal-Tar Food Dyes For guinea green B - Transfer to a 500 c. C. Volumetric flask that volume of the master solution which contains 5 grams of the dye. Add water, if necessary, to bring the volume to 400 c. 0. Add 8 c. C. Of strong ammonium hydroxide and 125 grams of sodium chloride (free from sul hates) and dilute to 500 c. C. With a saturated solution of sodium 0 oride. Shake vigorously to precipitate the dye and filter through a dry paper. Neutralize 200 c. C. Of the filtrate with dilute hydrochloric acid (1 +9) and add 5 c. C. In excess. Complete the determination and calculate as direct-cd in the first paragraph of this section, beginning with Heat to boiling and add a slight excess of hot 10 per cent barium chloride solution. 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.
Author : Irving Wetherbee Fay Ph; D. Berlin
Publisher :
ISBN 13 : 9781330512999
Total Pages : 514 pages
Book Rating : 4.5/5 (129 download)
Download or read book The Chemistry of the Coal-Tar Dyes (Classic Reprint) written by Irving Wetherbee Fay Ph; D. Berlin and published by . This book was released on 2015-06-30 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Chemistry of the Coal-Tar Dyes This book is Intended for those students and dyers who have a good knowledge of general chemistry, and some knowledge of organic chemistry. The object is to present, briefly, the origin and history of coat-tar production, and a discussion of the intermediate products between the coal-tar and the dyes themselves. The methods of making the dyes are taken up, followed by a study of the relations of the great classes of dyes, and also the individual dyes themselves, to one another in the same class. The development of one color from another by a change in its composition is explained, and tables showing the variation of color accompanying change of composition are included. The proof of constitution is in many places given in such detail as to allow the student to comprehend the bases for the structure of the complex molecules of the dyes. The significance of the chromophors and chromogens in the different classes of dyes is discussed. The use of mordants and the character of the union between the dyes and animal and vegetable fibres are also included. A few manufacturing processes are introduced here and there in detail, to give clear conceptions of this phase of the subject. Some practical experience to assist in comprehending the theory of the subject is made possible by a course of experiments, the performance of which aids in vivifying this difficult and interesting subject. It is hoped that this feature of the work will produce a more tangible result than could otherwise be possible. 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.
Author : George Henry Hurst
Publisher : Forgotten Books
ISBN 13 : 9781334327117
Total Pages : 120 pages
Book Rating : 4.3/5 (271 download)
Download or read book A Dictionary of the Coal Tar Colours (Classic Reprint) written by George Henry Hurst and published by Forgotten Books. This book was released on 2016-11-18 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from A Dictionary of the Coal Tar Colours The writer considered that a work of the nature of a dictionary giving brief descriptions of each coal tar colour would fill the want indicated, hence the appearance of this volume. No systematic account of the process of manufacture, or chemical relationships of the colours, has been attempted, but, as far as it has been possible to obtain the information, the chemical composition, formula, method of making, date of introduction, literature relating to it, and its discoverer have been given, while the properties and uses of the colours have had special attention paid to them. 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.
