The book Intermediate Text book of Chemistry was written by author Smith Alexander Here you can read free online of Intermediate Text book of Chemistry book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Intermediate Text book of Chemistry a good or bad book?
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The free acid HC0 2 R combines with an undissociated molecule of the original salt NaCO 2 R to form an acid salt NaH(CO 2 R) 2 . This acid salt is a colloidal substance, and exists in colloidal sus- pension in the soap solution, in equilibrium with the ions and molecules of the original salt and the NaOH. The capacity for being coagulated and precipitated, which is characteristic of colloidal matter, is shown by the soap. Most sodium salts will coagulate a soap solution and precipitate the soap... JEAN PERRIN French physical chemist. Investigator of the Browman movement, 1870- FATS, SOAPS, AND RELATED COMPOUNDS 379 as a curd. The acid salt NaH(CO2R)2 seems to collect (absorb) and carry down with it the most of the sodium hydroxide. As both of the substances on the right of the equation (above) are thus precipitated, the equilibrium is displaced to the right, and the precipitation becomes complete. This explains * the process of " salting out" which plays so large a part in the manufacture of soap.
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