By the use of modern methods a study was made of some nitroso and nitro compounds of ruthenium. The production of ruthenium in high yield in uranium and plutonium fission has focused attention on the chemistry of ruthenium. The anionic nitroso and nitro complexes of ruthenium had not been studied for about sixty years.
The use of controlled pore glass immobilized 8-hydroxyquinoline (CPG-8HOQ) for preconcentration of trace metals in aqueous media has been examined with in situ sampling as the objective. Quantities of the immobilized chelate were synthesized for the subsequent characterization which included determining capacities, batch kinetics, and kinetics in a flow system.
A densitometer to be used for liquids at temperatures up to ca. 1000°C and maintained in an inert atmosphere was constructed. The hydrostatic weighing method of Kohlrausch was chosen as the method most readily adaptable to the conditions imposed. This method utilises the buoyancy principle of Archimedes. The plummet was suspended from one arm of an analytical balance and immersed in the sample contained in the densitometer tube. The apparent loss in weight of the plummet upon immersion was measured by a chainomatic balance. The entire apparatus was made gas-tight; observations and manipulations of the balance were made through gas-tight seals.
The Dalton quadrangle (Ga. - Tenn.), located in northwest Georgia within the Ridge and Valley province, is a fifteen-minute quadrangle with topographic base by the U.S. Geological Survey. Because of the excellence of the base map and the location of the quadrangle in an area of lower Paleozoic rocks, it was selected as a beginning point for a re-investigation of the geology of northwest Georgia.
One of the important steps in the making of leather is the process known as bating or puering. This operation consists in treating the limed, unhaired skins with materials containing a proteolytic enzyme absorbed on an inert material, plus a deliming salt such as ammonium sulfate. The object of the process is to reduce some of the alkalinity of the skin and remove, from the grain surface particularly, any substance which would interfere with subsequent tanning operations.