Chemistry

Researches on Cellulose, 1895-1900

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Chapters

14. Chapter 14

(p. 304) The Report of a Representative Committee appointed by the Society of Arts to inquire into the question of qualities of book papers in relation to their several applicat...

1. Chapter 1

Produced by Juliet Sutherland, Josephine Paolucci and the Online Distributed Proofreading Team at http://www.pgdp.net. (This file was produced from images generously made availa...

7. Chapter 7

was exposed to the action of pure distilled H_{2}O_{2} at 4-60 p.ct. strength, at ordinary temperatures until disintegrated: a result requiring from nineteen to thirty days. The...

6. Chapter 6

With regard to denitration which is both a delicate and disagreeable operation: none of the agents recommended to substitute the sulphydrates have proved available. Of these the...

10. Chapter 10

These constitutional problems are followed up in (3) by the indirect method of differentiating the relationships of these furfuroids to yeast fermentation, from those of the pen...

2. Chapter 2

The actual production of furfural by boiling with condensing acids is a quantitative measure of only a portion, i.e. certain members of the group. The hydroxyfurfurals, not bein...

11. Chapter 11

Incidentally the following points were also established:--The solubility of the phloroglucide, under the conditions of finally separating in a condition for drying and weighing,...

13. Chapter 13

With acids up to 20 p.ct. H_{2}SO_{4} both products are formed concurrently and in nearly equal quantity. With the 30 p.ct. acid there is a great increase in the total furfural,...

9. Chapter 9

To separate the hemicelluloses, celluloses, and the constituents of lignin without essential change, the substance, after being freed from fat, is extracted with dilute hydrochl...

8. Chapter 8

with reference to the highest nitrate, and the decomposition of the nitrate by alkalis with formation of hydroxypyruvic acid. While these reactions afford no very sure ground fo...

4. Chapter 4

_Other decompositions._--The most interesting is the interaction which occurs between the cellulose xanthogenate and salts of ammonia, which is taken advantage of by C. H. Stear...

3. Chapter 3

The author critically discusses the grounds of the now celebrated patent controversy, arising out of the conflict of the claims of German patent 85,564/1895 of the former, and E...

12. Chapter 12

~Cellulose.~--There is little doubt that the furfural-yielding groups of the original are isolated in the form of the beta-cellulose. Tollens emphasises this fact in his studies...

5. Chapter 5

In this series of trials the sample 'A' was used in the condition of pulp, viz. as reduced by the process of wet-beating in a Hollander. A similar series was carried out with th...

15. Chapter 15

There is little doubt, however, that the question of the future industry in the various forms of cellulose, thread, film, structureless powder or solid aggregate, obtainable by...