A systematic handbook of volumetric analysis, or, The quantitative estimation of chemical substances by measure, applied to liquids, solids and gases / by Francis Sutton.
- Francis Sutton
- Date:
- 1890
Licence: Public Domain Mark
Credit: A systematic handbook of volumetric analysis, or, The quantitative estimation of chemical substances by measure, applied to liquids, solids and gases / by Francis Sutton. Source: Wellcome Collection.
508/592 page 492
![containing dilute acid. The position of the mercury in the graduated tube was first read off, after which the flask was shaken so as to bring the acid and carbonate in contact, and the increase in volume was due to the carbonic anhydride evolved. The results thus obtained are extremely concordant. In eight experiments with sodic carbonate the percentage of carbonic anhydride found varied from 41*484 to 4T607, theory requiring 41*509. Thirteen experiments with calc-spar gave from 43*520 to 43*858, the theoretical percentage being 44*0; and in nine other analyses from 43*581 to 43*901 were obtained. Two experiments were made with manganic per- oxide, oxalic acid and sul- phuric acid, and gave 58*156 and 58*101 per cent, of carbonic anhydride. Some determinations of the purity of magnesium were also performed by dis- solving the metal in hydro- chloric acid and measuring the resulting hydrogen. Four operations gave num- bers varying between 8*255 and 8*282. The metal should yield 8*333. Russell has also em- ployed this process for the determination of the com- bining proportions of nickel and cobalt (/. C. S. [n.s.] vii. 294). Regnault and Reiset described (Ann. Chim.Phys. [3] xxvi. 333) an appara- tus by which absorptions could be rapidly conducted by means of liquid reagents brought in contact with the gases in a laboratory tube. The measurements are made in a graduated tube, which can be placed in communication with the laboratory tube by means of fine capillary tubes provided with stop-cocks, the lower end of the measuring tube being connected by an iron socket and stop-cock with another graduated tube in which the pressure to which the gas is subjected is measured. The measuring.and pressure tubes are surrounded by a cylinder of water.](https://iiif.wellcomecollection.org/image/b28127006_0510.jp2/full/800%2C/0/default.jpg)
