Vauquelin n (15 risultati)

Condizione: New.

Condizione: As New. Unread book in perfect condition.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

PAP. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

Condizione: New.

Condizione: As New. Unread book in perfect condition.

HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

HRD. Condizione: New. New Book. Shipped from UK. Established seller since 2000.

Paperback. Condizione: New. Print on Demand. This book explores the nature of artificial camphor and the essence of turpentine, delving into their chemical composition and the processes involved in their production. The author, a respected chemist, presents detailed analyses of these substances, examining their composition, properties, and reactions. The book situates its findings within the broader context of chemistry, discussing the relationship between artificial camphor and the natural substance, as well as the significance of the essence of turpentine in various industries. The author provides a thorough examination of the historical and scientific understanding of these compounds, shedding light on their importance in the development of chemistry and their continued relevance in modern applications. Through meticulous experimentation and insightful analysis, the author unravels the complexities of artificial camphor and the essence of turpentine, offering valuable insights into their nature and significance. This book is a valuable resource for chemists, historians of science, and anyone interested in the intricate world of chemical compounds and their applications. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. …

Condizione: Sehr gut. Zustand: Sehr gut | Seiten: 588 | Sprache: Französisch | Produktart: Bücher | Keine Beschreibung verfügbar.

Condizione: Hervorragend. Zustand: Hervorragend | Seiten: 586 | Sprache: Französisch | Produktart: Bücher | Keine Beschreibung verfügbar.

(Paris, Baudouin, AN XI (1803)). 4to. Without wrappers. Uncut. Extracted from "Mémoires de L'Institut National des Sciences et Arts", Tome Quatrieme. Pp. 363-466. A few minor brownspots on the first leaves, otherwise fine and clean, unopened. First printing of this importent paper in the history of chemistry, in which the authors gave the first satisfactory account of of urea, which they named."Hundreds of concretions from various parts of human and animal bodies were analyzed by Fourcroy and Vauquelin. Most were urinary calculi which, independently of Wollaston, they classified according to chemical composition from 1798 onwards.They confirmed the frequent presence of uric acid and phiosphate of lime (discovered in calculi by Scheele and Georg Pearson respectively) and also found urate of ammonia, the double phosphate of magnesia and ammonia, and occasionally other compounds.In an attempt to find why urinary calculi were formed, Fourcroy and Vauquelin investigated urine, and in 1799 they gave (in the paper offered) the first satisfactory account of ures, which hey named.(they) isolated it by recrystallization from alcohol, and in 1808, achieved a purer state by adding alkali to the crystalline nitrate that they had discovered."(DSB V, p. 92-93).…

1st Edition. FIRST EDITION OF TWO PAPERS BY VAUQUELIN REPORTING THE DISCOVERY OF BERYLIUM. Louis Nicolas Vauquelin (16 May 1763 - 14 November 1829), was a French pharmacist and chemist who reports in this paper his discovery of a new 'earth' obtained by pulverizing gemstone emerald before melting with three times its mass of potassium hydroxide" (Walsh, Beryllium Chemistry, 7). In beryl (beryllium aluminum silicate) he found an earth (oxide) that superficially resembled alumina (aluminum oxide) but was insoluble in alkali and did not form alum. At the suggestion of the editors of Annales de Chimie, Vauquelin named it glucina, from the sweetness of its sulfate, but when first isolated in 1828 by Friedrich Wohler and, independently Antoine Bussy, it was renamed beryllium (DSB Vol. 13, p. 597). Though both Beryl and emerald were known as early as 77 A. D., they were not thought to be identical in any way. In 1797 the French mineralogist René Just Haüy noticed that the crystallographic structure of the two minerals seemed similar. Haüy urged Vauquelin to fully determine the chemical composition of each. As to the import and uses of Beryllium, the national laboratory at Los Alamos states: "Beryllium is used as an alloying agent in producing beryllium copper, which is extensively used for springs, electrical contacts, spot-welding electrodes, and non-sparking tools. It is applied as a structural material for high-speed aircraft, missiles, spacecraft, and communication satellites. Other uses include windshield frame, brake discs, support beams, and other structural components of the space shuttle. Beryllium is used in nuclear reactors as a reflector or moderator for it has a low thermal neutron absorption cross section. It is used in gyroscopes, computer parts, and instruments where lightness, stiffness, and dimensional stability are required. The oxide has a very high melting point and is also used in nuclear work and ceramic applications" (Periodic Table of Elements, LANL, Los Alamos National Laboratory Portal). ALSO INCLUDED: Martin Heinrich Klaproth report on the discovery of tellurium. Additionally, Klaproth discovered or co-discovered zirconium (1789), titanium (1792), strontium (1793), chromium (1797), mellitic acid (1799), and cerium (1803) (DSB, Vol. 7, p. 394). CONDITION & DETAILS: Paris: Chez Fuchs et Guillaume. 8vo. 8.25 x 5.5 inches (206 x 137mm). Volume 25: 335 pages, 1 plate. Volume 26: 340 pages, 1 plate. Ex-libris with NO spine markings and very minimal interior markings (small stamp on title page and blank front flyleaf). Tightly and very solidly bound in maroon cloth with a gilt-lettered spine; minor scuffing to the edge tips. Very slight toning to the preliminaries, otherwise bright and very clean throughout. Very good condition.…

Leather Bound. Condizione: New. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2025, utilizing the invaluable guidance of the original edition published many years ago in 1786-1815 . The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Pages:- 372, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 372 372.…

Leather Bound. Condizione: New. Presenting an Exquisite Leather-Bound Edition, expertly crafted with Original Natural Leather that gracefully adorns the spine and corners. The allure continues with Golden Leaf Printing that adds a touch of elegance, while Hand Embossing on the rounded spine lends an artistic flair. This masterpiece has been meticulously reprinted in 2025, utilizing the invaluable guidance of the original edition published many years ago in 1786-1815. The contents of this book are presented in classic black and white. Its durability is ensured through a meticulous sewing binding technique, enhancing its longevity. Imprinted on top-tier quality paper. A team of professionals has expertly processed each page, delicately preserving its content without alteration. Due to the vintage nature of these books, every page has been manually restored for legibility. However, in certain instances, occasional blurriness, missing segments, or faint black spots might persist. We sincerely hope for your understanding of the challenges we faced with these books. Recognizing their significance for readers seeking insight into our historical treasure, we've diligently restored and reissued them. Our intention is to offer this valuable resource once again. We eagerly await your feedback, hoping that you'll find it appealing and will generously share your thoughts and recommendations. Pages:- 788, Print on Demand. If it is a multi-volume set, then it is only a single volume. We are specialised in Customisation of books, if you wish to opt different color leather binding, you may contact us. This service is chargeable. Product Disclaimer: Kindly be informed that, owing to the inherent nature of leather as a natural material, minor discolorations or textural variations may be perceptible. Explore the FOLIO EDITION (12x19 Inches): Available Upon Request. 788 788.…