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Complexometric determination of sulfates

I. Odler and J. Gebauer

Technisches Prüfungsinstitut für das Bauwesen in Bratislava

 

Abstract: For direct detn., 50 ml. of slightly acid soln. contg. 2-20 mg. SO4-- is treated with excess Pb(OAc)2 and 10 ml. MeOH. PbSO4 is sepd., dissolved in 10 ml. NaOAc, and titrated with 0.02M Complexone III with Xylenol Orange indicator. For indirect detn., a pH 4-5 soln. contg. 4-20 mg. SO4-- is treated with 20 ml. 0.02M Pb(OAc)2 and filtered. Excess Pb in the filtrate is detd. complexometrically with Xylenol Orange indicator in the presence of urotropine. These methods can be used for detn. of SO4-- in H2O.

Full paper in Portable Document Format: 158a563.pdf (in Slovak)

 

Chemical Papers 15 (8) 563–567 (1961)

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