 Hence ink stains degenerate into iron-moulds, and these last are immediately produced on an inked spot of linen when washed with soap, because the alkali of the soap abstracts the gallic acid, and leaves only an oxide of iron.  A Grammar of Chemistry - Σελίδα 99των John Lee Comstock - 1825 - 240 σελίδεςΠλήρης προβολή - Σχετικά με αυτό το βιβλίο
 | Jeremiah Joyce - 1807 - 340 σελίδες
...iron-moulds are produced almost as soon as the linen that has been stained with ink is washed ? Tutor. Because the alkali of the soap abstracts the gallic acid, and leaves only the oxyde of iron. Charles. Iron is, I believe, found in many parts of this country. Tutor. It is,... | |
 | Jeremiah Joyce - 1818 - 268 σελίδες
...iron moulds are produced almost as soon as the linen that has been stained with ink is washed. Tutor. Because the alkali of the soap abstracts the 'gallic acid, and leaves only the oxyde of iron. Charles. Iron is, I believe, found in many parts of this country. Tutor. It is,... | |
 | William Henry - 1819 - 482 σελίδες
...iron, and partly, perhaps, in consequence of the destruction of the acid of galls. Henoe ink-stains degenerate into ironmoulds, and these last are immediately...the gallic acid, and leaves only an oxide of iron. (f) Ink is decomposed by oxymuriatic acid, which destroys the gallic acid, and the resulting muriatic... | |
 | John Lee Comstock, Sir Richard Phillips - 1822 - 260 σελίδες
...colour may be restored by moistening the paper with infusion of galls on a camels hair pencil. 2. Tnk is decomposed by age, partly in consequence of the...a precipitation of the oxide of iron on the cloth. 227- Iron comhines with carhon in various proportions. Obs. 1. Steel is a compound of iron and carhon;... | |
 | William Henry - 1823 - 752 σελίδες
...iron, and partly, perhaps, in consequence of the destruction of the acid of galls. Hence inkstains degenerate into iron-moulds, and these last are immediately...the alkali of the soap abstracts the gallic acid, snd leaves only an oxide of iron. Ink is decomposed also by chlorine, which destroys the gallic acid,... | |
 | William Henry - 1831 - 642 σελίδες
...consequence of the destruction of the acid of galls. Hence ink-stains degenerate into iron moulds, and these last are immediately produced on an inked...the gallic acid, and leaves only an oxide of iron. Ink is decomposed also by chlorine, which destroys the gallic acid, and the resulting muriatic acid... | |
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