Report on the chemical examination of several waters for the City of Boston / [Benjamin Silliman].

  • Silliman, Benjamin, 1816-1885
Date:
1845
Catalogue details

Licence: Public Domain Mark

Credit: Report on the chemical examination of several waters for the City of Boston / [Benjamin Silliman]. Source: Wellcome Collection.

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    Chloride of calcium, - -0044 Sulphate of magnesia, _____ .1290 Sulphate of lime and silica, - .4940 Phosphate of alumina, - .0740 Carbonate of lime, ------ .0490 Carbonate of magnesia, ----- .1030 Carbonate of soda, and loss, - .9403 2.1000 Carbonic acid to the gallon, cubic inches, - - 5.163 No. 9 gave the following results. Chloride of sodium, ------ .2540 Sulphate of soda, ------ .0843 Sulphate of alumina, ------ .0146 Sulphate of lime and silica, - - - - .5700 Phosphate of alumina, - - - - - .1700 Carbonate of magnesia, - .2560 Carbonate of lime, ------ .3860 Carbonate of soda, equivalent to Crenate and Ni¬ trate of ditto, by loss, ----- .4757 2.2100 Carbonic acid gas in 1 gallon, cubic inches, - - 4.549 This water also contained traces of iron which were too small to estimate j it was associated with phosphoric acid and alumina. No. 10.—This very peculiar looking water gave the fol¬ lowing results—and from the large quantity of iron it is easy to understand its high color, as well as from the abundance of apocrenic acid and organic matters. Chloride of sodium, ------ .2230 Chloride of magnesium, ----- .0144 Sulphate of magnesia, - .0570 Sulphate of lime with silica, - 2.0700 Basic phosphate of iron, and phosphate of lime, - 1.3600 Carbonate of lime, ------ .3410 Carbonate of magnesia, ----- .2730 Alumina and phosphate of ditto, - - - traces Carbonate of soda, equivalent to Crenates and Ni¬ trates of ditto, and loss, ----- ,2816 4.6200 This water contained no measurable quantity of carbonic acid, but it may be safely asserted that at its source it does