Transactions of the INDIAN CERAMIC SOCIETY Vol. 59 2000
R-apid Chelatometric Determination of Samarium and
Aluminium in the same Solution and at the same pH after
Masking and Demasking of Aluminium with Acetylacetone
S. S. Mukherjee and Dipali Kundu
Pages : 25-28
DOI :
Abstract
A simple stepwise complexometrlc method with EDTA has been
developed for the determination of samarium and aluminium In
a single aliquot solution Involving direct titration of Sm (Ill) at
pH 5.3 and Indirect titration of AI (Ill) at the same pH using xylenol
orange as an Indicator. Samarium Is determined by direct titration
with EDT A after masking aluminium with acetylacetone (at
-20"C). Aluminium is determined Indirectly with EDTA after
demasking of aluminium with acetylacetonate at 90"C. Interferences
due to Ti, Zr, Mn, Nl, Co, Cu etc have been eliminated. The
method has been standardized against synthetic solutions and
applied to various glasses
