1985•Communications Faculty Of Science University of Ankara Series B Chemistry and Chemical EngineeringOpen access

CHELATION STUDY OF PRASEODYMIUM, NEODYMIUM,SAMARIUM AND GADOLINIUM WITH TETRAET1IYLE.NEPENTAAMINEHEPTAACIT1C ACID

M. B. Hafez

Abstract

A quantitative spectrophotometric study of the interaction between tetraethylenepentaamine- heptaacitic acid (TPHA) with trivalent praseodymium, neodymium, samarium, and gadolinium was carried out. The effect of pH on the chelate formation was studied. The mole ratio of each comples was determined and the stability constans of the chelates were calculated. A proposed analytical procedure for determination of trivalent praseodymium, neodymium, samarium, and gadolinium was given. TPHA was found to form the 1:1 chelates with the studied ions in the range of pH lies between 2.7 and 10.5. The obtained stability constants were found to be 17.3, 17.6, 18.2, and 18.6 for PrlII, NdlII, Sm IH and Gd III chelates respectively.

Open-access reader

About this research paper

What this paper is about

Why it matters

OpenAlex reports 1 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

Key concepts: Samarium, Praseodymium, Neodymium, Gadolinium, Chelation, Chemistry, Inorganic chemistry, Lanthanide