This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 Excerpt: ...PRECIPITATING ACTION OF ELECTROLYTES ON FERRIC HYDROXIDE HYDROSOL. (16 milli-mols Fe(OH)2 per liter.) The significance of the relation between ionic charge and precipitating power was first pointed out by Hardy, who formulated the following rule: --The precipitation of a colloidal solution is determined by that ion of ...
Read More
This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1918 Excerpt: ...PRECIPITATING ACTION OF ELECTROLYTES ON FERRIC HYDROXIDE HYDROSOL. (16 milli-mols Fe(OH)2 per liter.) The significance of the relation between ionic charge and precipitating power was first pointed out by Hardy, who formulated the following rule: --The precipitation of a colloidal solution is determined by that ion of an added electrolyte which has an electric charge opposite in sign to that of the colloidal particles. It has already been pointed out that colloidal particles of arsenious sulphide are negatively charged, hence, according to Hardy's rule, the positive ions of the added electrolyte will condition the precipitation of the suspensoid. The experiments of Freundlich confirm this prediction, as is shown by the following table: PRECIPITATING ACTION OF ELECTROLYTES ON ARSENIOUS SULPHIDE HYDROSOL. Precipitation and Valence. An examination of the preceding tables reveals the fact that although the ionic concentration necessary to bring about precipitation, in accordance with Hardy's rule, decreases with increasing valence, the diminution in concentration is not, as we might expect, inversely proportional to the valence of the precipitating ion. The absence of any simple quantitative relation between the valence of an ion and its precipitating con Zeit. phys. Chem., 33, 385 (1900). centration is undoubtedly due to the influence of several potent factors, such as adsorption and the protective action of ions whose electric charge is of the same sign as that of the colloidal substance. Precipitation of Emulsoids. The action of electrolytes on emulsoids is much more obscure than the action of electrolytes on suspensoids. Nothing approaching a generalization similar to Hardy's rule for the precipitation of suspensoids has been found to apply to the precipitat...
Read Less
Add this copy of Outlines of Theoretical Chemistry to cart. $9.90, good condition, Sold by Becker's Books rated 3.0 out of 5 stars, ships from Houston, TX, UNITED STATES, published 1928 by John Wiley & Sons.
Add this copy of Outlines of Theoretical Chemistry to cart. $14.00, good condition, Sold by Top Notch Books rated 4.0 out of 5 stars, ships from Tolar, TX, UNITED STATES, published 1937 by John Wiley & Sons, Inc..
Add this copy of Outlines of Theoretical Chemistry to cart. $17.00, very good condition, Sold by Folded Corner Books rated 5.0 out of 5 stars, ships from Endicott, NY, UNITED STATES, published 1937 by John Wiley & Sons, Inc.
Add this copy of Outlines of Theoretical Chemistry to cart. $27.00, good condition, Sold by Sequitur Books rated 5.0 out of 5 stars, ships from Boonsboro, MD, UNITED STATES, published 1937 by John Wiley & Sons.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
Good. Size: 0x0x0; [Interesting provenance, previously owned by Sidney Ross] Fifth edition. Bound in publisher's cloth. Hardcover. Good binding and cover. Shelf wear. Small chip to spine. Bookplate of Ross on verso. Scattered underlining and markings. Sidney Ross was a physicist who helped develop U.S. weapons at the height of the Cold War. From the library Dr. Owen Hannaway. Hannaway was director of the Center for the History and Philosophy of Science at Johns Hopkins University. He authored numerous books and served as an editor of academic magazines in the history of science. Partial list of publications: Chemists and the Word: The Didactic Origins of Chemistry (1975); Observation, Experiment, and Hypothesis in Modern Physical Science (1985); The Evolution of Technology (1989); Science and the Practice of Medicine in the Nineteenth Century (1994); and The Foundations of Modern Science in the Middle Ages: Their Religious, Institutional and Intellectual Contexts (1996).
Add this copy of Outlines of Theoretical Chemistry (Signed) to cart. $32.00, very good condition, Sold by Shaker Mill Books rated 4.0 out of 5 stars, ships from West Stockbridge, MA, UNITED STATES, published 1922 by John Wiley & Sons.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
Very Good. No Jacket. Book. Inscribed by Author(s) Former library book with no external markings. Tight binding, solid boards with sharp corners, bright gilt lettering to spine strip, Stockbridge Library bookplate to front paste down, pocket and due date card to rear (book was checked out 4 times) author's inscription to library on front end paper signed and dated Oct. 10, 1922. He includes an exerpt from Whittier's Among the Hills, prelude.
