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The Boy Travellers in the Far East. Part Fourth

By Thomas W. Knox

2019-03-02 19:00:59

To this liquor the workmen have given the name of the mother of nitre; and Hoffman, finding it composed of the magnesia united to an acid, obtained a separation of these, either by exposing the compound to a strong fire in which the acid was dissipat ... Read more
To this liquor the workmen have given the name of the mother of nitre; and Hoffman, finding it composed of the magnesia united to an acid, obtained a separation of these, either by exposing the compound to a strong fire in which the acid was dissipated and the magnesia remained behind, or by the addition of an alkali which attracted the acid to itself: and this last method he recommends as the best. He likewise makes an inquiry into the nature and virtues of the powder thus prepared; and observes, that it is an absorbent earth which joins readily with all acids, and must necessarily destroy any acidity it meets in the stomach; but that its purgative power is uncertain, for sometimes it has not the least effect of that kind. As it is a mere insipid earth, he rationally concludes it to be purgative only when converted into a sort of neutral salt by an acid in the stomach, and that its effect is therefore proportional to the quantity of this acid. Less

Book Details

File size13261.334 KB
Print pages522
PublisherPublic Domain Book
LanguageEnglish
ISBN1296828344
autor-image
Thomas W. Knox
Author
Thomas Wallace Knox (June 26, 1835 - January 6, 1896)[1] was a journalist, author, and world traveler, known primarily for his work as a New York Herald correspondent during the American Civil War. As...

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