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Relation between composition and density of aqueous solutions of copper sulphate and sulphuric acid

Publication date: 1916-08

Topics: solution and solubility, Physical chemistry

Publisher: National Bureau of Standards

Collection: NBSBulletin; NISTresearchlibrary; fedlink; americana

Contributor: NIST Research Library

Language: English

Volume: Bulletin of the Bureau of Standards, Vol. 13, 273-281 (1916) Scientific Paper 275 (S275)

The densities of copper sulphate-sulphuric acid solutions of varying concentrations have been determined at 25 degrees and 40 degrees . The concentrations of the solutions varied from 50 gm, to 300 gm. of total solute per kg. of solution. Within the range studied the density of the solutions is approximately a linear function of the concentration. The densities of solutions of equal-weight (not equivalent) concentrations of copper sulphate (CuSO/sub 4/5H/sub 2/O) and of sulphuric acid are nearly identical. As a result of this, the densities of solutions containing appreciable amounts of each component are dependent principally upon the total concentration of the two solutes, and are almost independent of their%