Napier, James, 1810-1884, Fesquet, A. A · Philadelphia : H. Carey Baird · leaf 133
aduated tube, and equally simple. Another very ready method, sometimes recommended, is to take a small flask and a test-tube that will go inside, and stand nearly straight. Fifty grains of the soda-ash are dissolved in a little water in the flask, and the tube, which is nearly filled with sulphuric… … weighed ; the loss of weight will of course indicate the loss of carbonic acid, and by this the quan- tity of soda present may be calculated. If the loss of weight be ten grains, then as 22 the equivalent of carbonic acid, is to 31 that of soda, so is 10 to 14.09, which, being multiplied by 2,…
Dyes and dyeing · Coal-tar colors
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