Chemistry of the household . FIG. 1. WELL, CONTAMINATED BY HOUSE DRAINAGE. tin, is surrounded by cold water which continuallyruns through the apparatus. The steam, admitted atthe upper end of the coil, is condensed by the low tem-perature and distilled water is collected at the lower CHEMISTRY OF THE HOUSEHOLD. RainWater end. In the laboratory, distilled water is often madein the glass apparatus shown in Fig. 3. Distilled water has a flat taste, because air and otherdissolved substances which give water its taste havebeen removed. It will again dissolve the air on being])oured several times fr
Chemistry of the household . FIG. 1. WELL, CONTAMINATED BY HOUSE DRAINAGE. tin, is surrounded by cold water which continuallyruns through the apparatus. The steam, admitted atthe upper end of the coil, is condensed by the low tem-perature and distilled water is collected at the lower CHEMISTRY OF THE HOUSEHOLD. RainWater end. In the laboratory, distilled water is often madein the glass apparatus shown in Fig. 3. Distilled water has a flat taste, because air and otherdissolved substances which give water its taste havebeen removed. It will again dissolve the air on being])oured several times from one vessel into another. Rain is water which has been evaporated from thesurfaces of natural bodies of water, oceans, lakes,and from the land, and is practically free from mineralmatter, but contains dissolved gases. The vapor, cooled at the low temperatures of theupper levels of air, falls as rain. The first fall of any. FIG. 2. A , Gooseneck; B. Boiler; D, Condensing Coil. shower is mixed with impurities which have beenwashed from the air. Among these may be carbondioxide, ammonia, and carbon in the form of soot andcreosote. It is these last impurities which cause the WATER. 5 almost indelible stain left when rain water stands uponwindow-sills or other finished woods.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectc, booksubjectcookery
