The book An Essay On Calcareous Manures was written by author Edmund Ruffin Here you can read free online of An Essay On Calcareous Manures book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is An Essay On Calcareous Manures a good or bad book?
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composed. Thus the ezacl quantity of iron which was engaged by the sulphur (and consequently the amount of bi-sulphuret of iron) was asceil The carbonate of lime was determined in the usual way, viz., by treating the first obtained solution in hydrochloric acid with ammonia, whereby the silica, alumina, peroxide of iron, and phosphate of lime were thrown down, leaving the lime and magnesia alone in a state of suspension. The former was precipitated by oxalate of ammonia, and subse- quently the ...latter by phosphoric acid. The sulphate of lime was ascertained by boiling a determinate quantity of Ihe green- sand in water until the whole of4his salt present was taken into solution The clear solution was treated with chloride of barium, and the sulphate of baryta ignited and weighed. The sulphuric acid present in the earth was thus arrived at, and, by subse- quent calculation, the sulphate of lime originally present was ascertained. Sulphate of alumina (but no sulphate of iron) was found to exist, in traces, by the precipitation of alumina, occasioned on the treatment of the water boiled on the earth with ammonia.
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