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В3.22-1 For the preparation of standard solutions of ti
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Uploaded: 01.05.2019
Content: В3.22-1.doc 253,5 kB
Product description
For the preparation of standard solutions of titanium (IV) and vanadium (V), the sample of steel that does not contain vanadium and titanium was dissolved in nitric acid. In six volumetric flasks with a capacity of 50.00 ml, the same aliquots of the resulting solution were placed, 0.50, 1.00, 1.50 ml of a solution containing 0.20 mg / ml titanium (IV) or vanadium (V), hydrogen peroxide was added and labeled. The optical densities of the titanium (IV) complexes at 400 nm and vanadium (V) at 400 nm and 619 nm relative to the reference solution containing all the components were measured. We obtained the following data for constructing a calibration graph:
Additional information
The task from the textbook on Analytical Chemistry, vol.2, Vasiliev
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