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Definition of the maintenance of sulphur


The sulphur maintenance defined a method of double burning on the device Volynsk. A shot of the sample m = 20 4 30 mg evaporated and pirolizovali in the quartz glass, the open which end is entered in dozhigajushchee pla - mja microburners.
Evaporation and pyrolysis products completely burn down in dozhigajushchem a flame mikro the burners formed thus oxides of sulphur, are captured 0,03 N by solution NaHCOj. An absorption solution ottitrovy - bring down 0,05 N solution H2SO4,
The sulphur maintenance count under the formula:
o/os = (uo _і at і) so, 15 m
Where Vo - the quantity of the acid which have gone on titration of an absorption solution in blank run, ml; Vi - the quantity of the acid which have gone on titration of an absorption solution after burning of a shot, ml; m - weight of a shot, mg.
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A source: Tagirzjanov, Marseilles Ilgisovich. ASPHALTENES VANADIJSODERZHASHCHIH neftej (on an example of oil objects of deposits of Tatarstan) the Dissertation on competition of a scientific degree of a Cand.Chem.Sci. Kazan - 2003. 2003

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