Publisher's Synopsis
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1876 edition. Excerpt: ... is ascribed to Mr. Young, of Kelly (in a paper read by Mr. James R. Napier before the Phil. Society of Glasgow, Dec. 16th, 1874), viz., that the presence of an alkali in water protects iron and prevents rusting. In consequence of the great importance of his results, I give two tables of figures (from the four contained in his paper) representing some of them: --(See Tables on following pages.) I quote here an important experiment made by him on the effect of chloride of magnesium on iron at boiling temperature. Two grammes of neutral magnesic chloride were introduced into a strong tube in which weighed pieces of iron were placed; boiling distilled water was added, and the tube sealed up while steam was issuing. It was then kept at 100 Cent. (212 F.) for six weeks, and after cooling was opened. Gas was evolved on opening it; the iron was black and had lost 0.39 per cent, in weight, and the solution when filtered No. contained chloride of iron (ferrous chloride). (Dingler's P. J., ccxviii. 70-79. Ohem. Soc. J., No. clx. p. 522.) Solution. 1 Freshly distilled water 2 Containing Ba Cl2 and Ca Clj 3 Containing Na CI and KC1 4 Containing Mg Cl2 5 Containing NH4 CI 6 Containing K(OH)2 7 Containing Na C03 8 Containing sea water 9 Containing sea water, evaporated, and oil 5 drops Still another valuable contribution to our knowledge of this subject comes to us from Germany, in the results of an examination of the effects of condensed water containing grease on boilers which were fed with it, by Stingl, an author who also proposed and successfully carried out a method for the purification of that water. The water was evidently condensed by means of an injection condenser, as salts of lime and magnesia were present in small quantity in the condensed..
