Studies on the Separation of Fission Products: Collection of Fission Product Activity with Ferric Hydroxide, Barium Carbonate and Ferric Hydroxide-Barium Carbonate Precipitates

90Y ferric hydroxide colloid.

At the Radiochemical Centre we have recently developed a new 90Y colloid which has greater stability than the currently available 90Y silicate colloid and appears from the results of animal tests to be suitable for the treatment of rheumatoid knee joint effusions. In this report the need for a new 90Y colloid is assessed and the preparation and properties of the new colloid are described. Curre...

Loss of Radioactivity From Barium Carbonate Samples.

The exchange loss of radioactivity from solid samplos of barium carbonate through the agency of carbonic acid and its ions has beon investigated under a variety of conditions. It is concluded that tho losses observed are greatly dependent upon the method of sample proparation, in particular the nature or any heat troatment which the sample materials undergo. This paper is based upon work porfor...

99mTc-ferric hydroxide macroaggregates for pulmonary scintiphotography.

On the Aging of Ferrous Hydroxide and Ferrous Carbonate

Interest in the aging of metal hydroxide has increased greatly during the past few years and it is due, no doubt, mainly to the fact that certain metal hydroxides have become useful for the isolation of enzymes and vitamins. The selective adsorption properties of these hydroxides, aluminum hydroxide for example, make them suitable for these purposes. Their surface forces make it possible to sep...

Effect of CO2 Partial Pressure on the Thermal Decomposition Kinetics of Zinc Carbonate Hydroxide (TECHNICAL NOTE)

In this work, the effect of carbon dioxide partial pressure on the calcination kinetics of high purity zinc carbonate hydroxide has been studied. Non-isothermal analysis has been performed on samples at different CO2 partial pressures by TGA and DTA. It has been found that the calcination behaviour of this material corresponds to the shrinking core model and the reaction mechanism is phase boun...