The Determination of Barium in Waste Water. Complexometric Method.
Abstract
A complexometric method is described which is applicable to most natural and treated waters whose barium content ranges from 0 to 10 ppm. The method fails at times with acid or pulluted waters that contain excessive amounts of heavy metals. Barium is determined by the difference between the titrant volume of disodium dihydrogen ethylenediamine tetraacetate (Na2EDTA) required by an untreated sample and a sample from which barium has been precipitated as barium sulfate. A solution of Eriochrome Black T dye is bright blue in the absence of alkaline earths, but as an indicator, the alkaline earths can be titrated with Na2EDTA. Interferences are also discussed. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1968
- Accession Number
- AD0751885
Entities
People
- Brick B. Mesman