Read Experimental Organic Chemistry

Experimental Organic Chemistry

James Flack Norris

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Description:Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: CHAPTER II GENERAL PROCESSES: HYDROCARBONS OF THE METHANE SERIES 62. Calibration of a Thermometer.?Calibrate a thermometer at 0, 100, 183.7, and 218.1 according to the method described in 48, page 31. 63. Determination of Melting-points.?Determine the melting- 'point of the substances furnished according to the directions given in 49-52, pages 32-35. 64. Fractional Distillation.?Read the description of fractional distillation in 21-23. Set up an apparatus for distillation like that shown in Fig. 2, page 9. Use a 200 cc. distilling flask and as receivers three 100 cc. flasks which are labeled, respectively, I, 78-82; II, 82-95; and III, 95-100. Place 50 cc. of alcohol and 50 cc. of water in the distilling flask, and heat the latter with a flame of such a size that the liquid distils at the rate of about 1 drop per second. Collect the part which distils up to 82 in the flask numbered I. When this point is reached replace this receiver by flask II, and collect the distillate in this flask until the thermometer registers 95. At this point use flask III as the receiver. When nearly all the liquid has distilled, pour out the small residue from the distilling flask and dry it, or use a clean dry flask. Measure in a graduated cylinder the volumes of the contents of the three receivers at the end of the first distillation, and record the results in your notebook. (See the tabulation on page 14.) Place in the distilling flask the liquid in receiver I (the first fraction), and distil as before, collecting what boils up to 82 in receiver I. When this point is reached, allow the distilling flask to cool slightly, and then add to it the contents of flask II. Replace the thermometer and distil. Collect what passes over below 82 in flask I, and the part which boils between 82 an...We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Experimental Organic Chemistry. To get started finding Experimental Organic Chemistry, you are right to find our website which has a comprehensive collection of manuals listed.
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Pages: 74

Format: PDF, EPUB & Kindle Edition

Publisher: General Books

Release: 2012

ISBN: 1459072952

Description: Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: CHAPTER II GENERAL PROCESSES: HYDROCARBONS OF THE METHANE SERIES 62. Calibration of a Thermometer.?Calibrate a thermometer at 0, 100, 183.7, and 218.1 according to the method described in 48, page 31. 63. Determination of Melting-points.?Determine the melting- 'point of the substances furnished according to the directions given in 49-52, pages 32-35. 64. Fractional Distillation.?Read the description of fractional distillation in 21-23. Set up an apparatus for distillation like that shown in Fig. 2, page 9. Use a 200 cc. distilling flask and as receivers three 100 cc. flasks which are labeled, respectively, I, 78-82; II, 82-95; and III, 95-100. Place 50 cc. of alcohol and 50 cc. of water in the distilling flask, and heat the latter with a flame of such a size that the liquid distils at the rate of about 1 drop per second. Collect the part which distils up to 82 in the flask numbered I. When this point is reached replace this receiver by flask II, and collect the distillate in this flask until the thermometer registers 95. At this point use flask III as the receiver. When nearly all the liquid has distilled, pour out the small residue from the distilling flask and dry it, or use a clean dry flask. Measure in a graduated cylinder the volumes of the contents of the three receivers at the end of the first distillation, and record the results in your notebook. (See the tabulation on page 14.) Place in the distilling flask the liquid in receiver I (the first fraction), and distil as before, collecting what boils up to 82 in receiver I. When this point is reached, allow the distilling flask to cool slightly, and then add to it the contents of flask II. Replace the thermometer and distil. Collect what passes over below 82 in flask I, and the part which boils between 82 an...We have made it easy for you to find a PDF Ebooks without any digging. And by having access to our ebooks online or by storing it on your computer, you have convenient answers with Experimental Organic Chemistry. To get started finding Experimental Organic Chemistry, you are right to find our website which has a comprehensive collection of manuals listed.
Our library is the biggest of these that have literally hundreds of thousands of different products represented.

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Experimental Organic Chemistry

Experimental Organic Chemistry

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