Show IRON DISSOLVED BY WATER Interesting Experiments to Show Slow How Metal Slay pray Dla lie lle Decomposed From the Philadelphia Record Some interesting experiments and researches into the ability of water to exercise a destructive influence on an iron pipe which have been recently made In Europe Europe Eu Eu- rope have yielded results not generally expected It has been ascertained that waters containing a little lime but an appreciable quantity of dissolved carbonic carbonic carbonic car car- bonic acid were observed to exercise a solvent action on the iron and the course of at the action was traced A known quantity of iron filings was placed in each of ot three vessels which were respectively filled with ordinary river water and the same water after carbonic acid had passed through it for fora a few minutes and after the addition of sufficient lime to just neutralize the carbonic acid The vessels were sealed by mercury from contact by the air and after aCter the lapse of a certain time the iron dissolved in each case was de de- e. e In the first case the water had dissolved about 3 1000 per cent in inthe inthe inthe the second 2 2100 per cent while In the third only traces of iron could be discerned dis dis- The water In the second case cas was clear but on standing exposed to the air ferric oxide separated It was therefore Inferred that water contain ing carbonic acid and very little lIttIe lime dissolved Iron as ferrous carbonate The latter Is then decomposed by the oxygen of at the air and ferric acid is deposited and carbonic acid formed The latter can again attack the iron and thus water containing little carbonIc carbonic carbonic car car- bonic acid may have a powerful action upon iron pipes |