A dictionary of chemical solubilities inorganic - Tapa blanda

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. 1896 Excerpt: ...action. Removal of air from H20 diminishes the solvent action. Simple filtration will remove all Pb from H20 if suitable filters are used. (Flogel, J. B. 1888. 2645.) Pure distilled H20 has strong corrosive action on Pb, which is very much weakened by addition of a solution of CaC03 in carbonic acid water, but the presence of sulphates increase the action. Pb is not appreciably attacked by Hs0 in presence of chlorides alone, but very strongly wnen CaS04 is also present. H20 'containing C02 also corrodes Pb. The conclusion was drawn that the absence of action of H20 on Pb in lead pipes is due to the presence of traces of CaH2(C03)2. (Barbaglia and Gucci, C. C. 1888. 934.) Almost insol. in cold HC1 + Aq, and only si. attacked when boiling. Completely sol. in HN03 + Aq if not too cone, but presence of HjSO,, or HC1 diminishes the solvent power to a great extent. (Rose.) Granulated Pb is si. sol. in cone. HC1 + Aq; addition of PtCl4 makes the action very ener fctic. Dil. HCl + Aq may also be used with tCL,. (Millon, C. R. 21. 49.) Scarcely acted upon by boiling cone. HC1 + Aq. Sol. in aquaregia. HN03 + Aq is the best solvent, but Pb is as good as insol. in a mixture of HN03 and HaS04. (Berzelius.) Not acted upon by very cone. HN03 + Aq. Quickly decomp. by hot HCl + Aq, slowly by cold. (Sharpies, C. N. 60. 126.) Pb is only si., attacked by HN03 + Aq of any strength below 15. Above 15 it is most rapidly attacked by a rather weak acid. (Montemartini, Gazz. ch. it. 22. 397.) Action of H2S04 on Pb. HjS04 of 1-842 sp. gr. dissolves 201 g. from 1 sq. metre pure lead at ordinary temp, (timo?), and H2SO4 of 1705 sp. gr. dissolves only 59 g. Slight impurities in the lead lessen this solubility. (Calvert and Johnson, Chem. Soc. (2) 1. 66.) Strongly attacked by 99'8 % HjJS...