The Radiochemistry of Technetium

Abstract

This series of monographs has grown out of the need for up-to-date compilations of radiochemical information and procedures. The Subcommittee has endeavored to present a series which will be of mELXimum use to the working scientist and which contains the latest available Information. Each monograph collects in one volume the pertinent information required for radiochemical work with an individual element or a group of closely related elements. An expert in the radiochemistry of the particular element has written the monograph, following a standard format developed by the Subcommittee. The Atomic Energy Commission has sponsored the printing of the series. The Subcommittee is confident these publications will be useful not only to the radlochemlst but also to the research worker in other fields such as physics, biochemistry or medicine who wishes to use radiochemical techniques to solve a specific problem.

Separation and Identification of Chlorocomplexes of Technetium(IV) formed in Hydrochloric Acid Solutions

“…The rates of the forward and backward reactions of the first step in Eq. (1) are expressed as follows: (2) (3)…”

Technetium sulfide – formation kinetics, structure and particle speciation

“…Triclinic crystals of TcS 2 were formed. Sodium thiosulphate and thioacetamide were shown to be able to produce Tc 2 S 7 in treatment of acidic Tc(VII) solutions [9,10].…”

Elimination of Eccentric Error in High Precision Counting

“…The nuclide »»mTc, the daughter product of »»Mo, which has a short half-life (6.05 hours), desirable radiation charaoteristics (a Single gamma ray of 140 keV) and rapid clearance from the blood, compares favourable with "iJ, 2<«Hg and I'^AU for thyroid scanning, brain scanning and radiocardiography [2]. The »»Mo, the parent of »»""Tc, may be obtained from the fission of uranium or as a result of neutron capture in molybdenum targets [3]. In general the use of a stable molybdenum Compound as target material is preferred for »»mTc production, since »»mTc produced from fission product »»Mo was found to contain such radiocontaminants as i®®Ru and ^^^I [4,5].…”