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ISBN 9781154774313
REGISTERED: 11/17/17
UPDATED: 10/15/19

This historic book may have numerous typos and missing text

  • Cellulose available on June 23 2016 from Indigo for 27.5
  • ISBN bar code 9781154774313 ξ1 registered June 23 2016
  • Product category is Book

  • # 978115477431

Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 edition. Excerpt: ...with ordinary cotton tissue. It has from many sides been asserted that a good quality of collodion-cotton can only be obtained by nitrating fine tissue-paper which consists almost entirely of pure cellulose. Direct experiments in this direction have proved that an excellent quality of collodion-cotton can actually be prepared from such paper, it being only necessary for the purpose of nitration, slowly to draw strips of the paper over glass rods placed horizontally in the nitrating vessel and allow them to drain off. If, however, the expense of preparing collodion-cotton from paper is compared with the cost of producing it from cotton, the calculation results in favor of cotton. It may be confidently asserted that all that is necessary is to free cotton from all foreign bodies, i. e., to convert it into pure cellulose, to be enabled to produce from it as good a quality of collodion-cotton as from paper. COLLODION. Nitro-cellulose, with a certain content of nitrogen, is capable of dissolving in a number of fluids, and it then forms a viscous mass possessing great adhesive power, to which the term collodion has been applied. When collodion is left to itself until the solvent evaporates, the nitro-cellulose remains behind in the form of a structureless film, which is perfectly colorless, and is distinguished by considerable solidity and high lustre. Collodion found originally only limited application in the healing art, it being used for the purpose of closing wounds air-tight to prevent the colonization of organisms which cause gangrenous and other complications detrimental to the healing process. Solutions of nitro-cellulose gained in importance only from the time when the use of collodion in photography became general, and they retained...

    ^ Cellulose Indigo. (revised Jun 2016)

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