Radiochemistry of neptunium

Abstract

The Subcommittee on Radiochemistry is one of a number of subcommittees working under the Committee on Nuclear Science within the National Academy of Sciences-National Research Council Its members represent government, industrial, and university laboratories in the areas of nuclear chemistry and analytical chemistry The Subcommittee has concerned itself with those areas of nuclear science which involve the chemist, such as the collection and distribution of radiochemical procedures, the radiochemical purity of reagents, the place of radiochemistry in college and university programs, and radiochemistry in environmental science This series of monographs has grown out of the need for compilations of radiochemical information, procedures, and techniques The Subcommittee has endeavored to present a series that will be of maximum use to the working scientist Each monograph presents pertinent information required for radiochemical work with an individual element or with a specialized technique Experts in the particular radiochemical technique have written the monographs The Atomic Energy Commission has sponsored the printing of the series The Subcommittee is confident these publications will be useful not only to radiochemists but also to research workers in other fields such as physics, biochemistry, or medicine who wish to use radiochemical techniques to solve specific problems

Strontium and Actinide Removal Testing with Monosodium Titanate and Other Sorbents

“…15 Again, the color of the solutions provided an indicator of reduction. The starting Np (V) solution was pale yellow and turned colorless upon addition of the H 2 O 2 .…”

Neptunium_Oxide_Precipitation_Kinetics_AJohnsen

“…The study presented here was undertaken to confirm the initial findings of Roberts et al [4] and to examine the [17]. A purified stock solution of NpO2 + chloride media was prepared by precipitation of NpO2OH(am) via NaOH addition, the precipitate rinsed three times with DI water, and the remaining solid dissolved in a minimum of 0.1 M HCl [18,19].…”

Determination of thorium and uranium at the nanogram per gram level in semiconductor potting plastics by neutron activation analysis

“…In some instances it may be necessary to strip the Np from the organic into 10 M nitric, as described in Ref. 5, and either recycle the extraction or coprecipitate with La(0H)3.…”