Background: Lead-based radiation shields are widely used in radiology departments to protect both workers and patients from any unnecessary exposure to ionizing radiation. Recently there has been a great deal of concern expressed about the toxicity of lead. Human lead toxicity is well documented. In that light, production of environmentally-friendly lead-free radiation shields with less weight ...

— In this paper we describe the use of muffin tin orbital techniques, employed in a variety of approximations, to help understand the band structure and bonding in actinide metals and compounds. Simple methods of assessing bandwidfhs and placings, readily accessible to experimentalists, are reviewed for both metals and compounds and their limitations discussed. Examples from the uranium monopni...

Despite the increasing industrial use of indium-tin oxide (ITO) to manufacture flat-panel displays, such as liquid-crystal displays or plasma display panels for televisions, little is known about the potential health hazard induced by occupational exposure to indium compounds. The current study describes a case of fibrotic lung disease that developed after a 4-yr exposure to ITO. The pathology ...

A series of Schiff’s bases i.e., N-(4-(benzylideneamino)-2-phenoxyphenyl)-4-methylbenzene-sulfonamide were synthesized from Nimesulide and studied for their in vivo anti-inflammatory activity. Hydrolysis of Nimesulide with sulphuric acid led to the formation 1 which on further reaction with benzene sulphonyl chloride yielded the title compounds 2. Compounds 2 reduced with tin in presence of con...

We have been active in the synthesis and characterization of tin-based antitumour compounds for several years and we would like to summarize here the results that have already been patented(1) and that may therefore be disclosed(2). We synthesized some diorganotin 2,6-pyridinedicarboxylates.The dimethyltin compound has been found inactive in vitro, whereas the di-n-butyltin, di-t-butyltin and d...

Tests for chemically induced nondisjunction and loss of the sex chromosomes in Drosophila were performed. Of 31 compounds tested four gave rise only to an increase of XO exceptions, indicating the induction of chromosome loss. Six compounds, all known spindle inhibitors (colchicine, organic mercury, lead, and tin compounds) gave rise to an increase both of XXY and XO or of only XXY. The effect ...

Nature of the Accident Tin is manufactured on a very large scale in Bootle. It occurs naturally as pyrites, and arsenic is an invariable contaminant. The chemical composition of the ores varies considerably but arsenic is present in a concentration of up to 3 %. The tin is liberated from its ores by heating with carbon. The arsenical impurities float to the surface of the molten tin and form a ...

Two PcSn(IV) dicarboxylate molecules were obtained through efficient microwave methodology with the aim to test them as corrosion inhibitors in the oil industry. The compounds were characterized by elemental analysis, IR, UV-vis, (1)H, (13)C NMR, and X-ray diffraction. The relative configuration of the two carboxylates is cis, placing the fatty acid moieties on the same face of the phthalocyani...