Spectral Differentiation of Pure Hydrocarbons: A Near Infrared Absorption Study
Language: English
Published by Forgotten Books, 2018
- Softcover
- New
Seller: Forgotten Books, London, United KingdomForgotten Books
AbeBooks seller since June 2, 2021
Condition: New
£ 13.76
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Add to basketItem description from seller
Print on Demand. Delving into the intricate world of infrared absorption spectroscopy, this book provides a comprehensive exploration of its principles, techniques, and applications in chemistry. The author meticulously examines the absorption spectra of various compounds, showcasing how they can reveal valuable information about molecular structure and composition. The book's in-depth analysis unveils the distinct absorption patterns associated with different types of chemical bonds, enabling readers to identify and characterize various functional groups. Through this detailed examination, the author establishes the use of infrared absorption spectroscopy as a powerful tool for elucidating the molecular architecture of organic compounds. The insights gained from this technique have significantly advanced our understanding of molecular dynamics and intermolecular interactions. 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.…
Seller Inventory # 9780260648105_0
- Title
- Spectral Differentiation of Pure Hydrocarbons: A Near Infrared Absorption Study
- Author
- Urner Liddel, Charles Kasper
- Publisher
- Forgotten Books
- Publication year
- 2018
- Condition
- New
- Book Type
- print-on-demand item
- Binding
- Paperback
- Language
- English
- ISBN 10
- 0260648108
- ISBN 13
- 9780260648105
- Seller catalogs
- Physics
The spectrograph, of the Littrow form, is shown in figure 1. The source of continuous radiation is a tungsten ribbon - filament lamp which is enclosed in a water-jacketed cell. The light is collimated through a large brass tube 1 m long, and focused by a concave mirror on the slit of the spectograph. The absorption cell containing the solution or compound under investigation is fixed in the light path between the collimating tube and the slit. The light then goes to a large concave mirror from which parallel rays are reflected through two 60° glass prisms, then reflected by the plane Littrow mirror over the same path, giving four-prism dispersion, and finally focused on a sensitive vacuum thermocouple. Wave length variation is accom plished by rotation of the Littrow mirror which is coupled with the motion of a recording photographic plate by means of a lever system. As the incident energy on the thermocouple actuates the galvanome ter, a beam of light reflected from the galvanometer mirror moves across the photographic plate, so that one has recorded a graph of galvanometer deflections with wave lengths, or a plot in arbitrary units of the intensity of transmitted light against frequency. As a check on the constancy of the intensity of emission of the tungsten filament, the cell was withdrawn from the light path by means of a solenoid arrangement moving the cell-holder along a dove-tail slide, thus producing on the recorded photographic plate segments of the curve of the emission of the so'urce not modified by the absorption cell. Likewise, to determine the zero drift of the galvanometer, a shutter was thrown in front of the slit at certain times giving segments of the base line of the curve. The motion of these two auxiliary units was controlled by a breaker circuit operated by a synchronous motor; the motion of the photographic plate was controlled also by a synchronous motor, hence these segments of curves always appeared at the same frequency on the recorded plate, and it was thereby pos sible to compare the intensity of emission of the source during the recording of one plate with that of another. Thus by recording the transmission of the cell filled with carbon tetrachloride, then the cell containing the solution, it was possible to calculate the transmittancy from which the absorptive indices were derived.
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.
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Forgotten Books’ Classic Reprint Series utilizes the latest technology to regenerate facsimiles of historically important writings. Careful attention has been made to accurately preserve the original format of each page whilst digitally enhancing the quality of the aged text.
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Forgotten Books publishes hundreds of thousands of rare and classic books.
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.
This text has been digitally restored from a historical edition. Some errors may persist, however we consider it worth publishing due to the work's historical value.
The digital edition of all books may be viewed before purchase if you request a sample.
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