File:Image from page 335 of "Practical methods of organic chemistry" (1901) (14585181107).jpg
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[edit]DescriptionImage from page 335 of "Practical methods of organic chemistry" (1901) (14585181107).jpg |
Identifier: practicalmethods00gatt Title: Practical methods of organic chemistry Year: 1901 (1900s) Authors: Gattemann, Ludwig. [from old catalog] Subjects: Publisher: [n.p.] Contributing Library: The Library of Congress Digitizing Sponsor: The Library of Congress
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Text Appearing After Image: Fig. 77. AROMATIC SERIES 317 bake together, the mass is pulverised quickly in a dry mortar, thedry mass is then heated with thorough stirring in a nickel dish todusty dryness. It is then placed in a tubulated retort of 200 c.c.capacity. The retort is then immersed as far as possible in an oil-bath (Fig. 77). This is heated to no°, and at this temperaturea current of dry carbon dioxide is passed over the sodium pheno-late (the end of the delivery tube is 1 cm. above the upper surfaceof the sodium phenolate) ; this is passed into the retort for anhour. The temperature is then gradually raised (200 per hour)during the course of four hours, while a not too rapid current ispassed in, to 1900. The mixture is finally heated 1-2 hours at2000. During the operation the mass is stirred several times witha glass rod. After cooling, the phenol in the neck of the retort ismelted by the application of a flame to the outside, the dusty, finepowder is poured into a large beaker, the retort is washed
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Source | Image from page 335 of "Practical methods of organic chemistry" (1901) |
Author | Internet Archive Book Images |
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