Saccharine, benzoyl sulphonic-imide, Dr. Fahlberg's new sweetening agent made from coal-tar ... : a compilation of the results obtained since its introduction, by the scientific researches of learned men and through the practical experience of experts / by Adolph List, a partner of the firm of Fahlberg, List & Co., saccharine works. English ed.

  • List, Adolph.
Date:
1893
Catalogue details

Licence: Public Domain Mark

Credit: Saccharine, benzoyl sulphonic-imide, Dr. Fahlberg's new sweetening agent made from coal-tar ... : a compilation of the results obtained since its introduction, by the scientific researches of learned men and through the practical experience of experts / by Adolph List, a partner of the firm of Fahlberg, List & Co., saccharine works. English ed. Source: Wellcome Collection.

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    The Trade Article Saccharine. Saccharine, as made m works, is a white amorphous powder, which seen through a microscope is. found however to consist of minute crystafs. In cold water it is slightly soluble, rather more soluble in warm, but in. boiling water it is quite soluble, and the solution possesses an intensely sweet taste. Saccharine is made solely by the owners of the patents in their saccharine manufactory built by them especially for the purpose, at Salbke-Westerhiiseu on the Elbe (Prov. Saxony, Germany), the following specialities being produced for sale. I. Pure Saccharine. So-called »pure saccharine, which has been exclusively the trade article hitherto, is 300 times sweeter than sugar. It is not a single substance but a mixture of 2 kinds of benzoyl sulphonic imide — about GO percent of the anhydride of the ortho with about 40 percent of the para and meta anhydrides, of which latter it contains a small quantity only. The ortho combination alone possesses the sweetening quality and confers a sweetening power surpassing that of sugar by 30 ) times. As the separation of the ortho compound from the others, presented, in wholesale manufacture, many technical difficulties and could not be carried out until recently, this so-called pure saccharine was in reality, till then, the purest and best factory- made trade article obtainable. II. Refined Saccharine. After many long and exhaustive experiments a method of manufacturing has at length been discovered, by means of which it is possible to separate the ortho compound from the others, and to produce on a large scale benzoyl sulphonic imide which is offered now for sale under the name of wefined saccharine« and is 500 times sweeter than sugar. In treating of the qualities and use of saccharine the two above-mentioned articles will be discussed separately, and it will be further demonstrated which of them deserves the preference in each special case. III. Easily soluble Saccharine. IV. Easily soluble refined Saccharine. In aqueous solu- tions saccharine contains an atom of hydrogen capable of being replaced by alkalis, and with suitable bases forms salts, which are almost as sweet as the pure product, the anhydride; they dissolve nevertheless easily in all fluids, and furnish neu- tral solutions. Both from the pure and from the refined saccharine a sodium salt is, therefore, produced, which is known in the trade under the names: »easily soluble saccha- rine and »easily soluble refined saccharine. These products contain 90 percent respectively of pure and refined saccharine and are therefore respectively about 275 and 4 '0 times as sweet as sugar. in