A model is presented that describes the pumping characteristics of St707 getter material, the evaporation rate of antimony, and the resulting partial pressure of Sb within a vacuum chamber. The results show that within the 250-450◦C range, the partial pressure of antimony ranges from 10−7 Pa to 10−2 Pa. In a limiting case where the getter efficiency is tuned to 10, 000 L/s, partial pressures ar...

Abstract Organic cations influence the crystal packing and, less commonly, electronic structure of hybrid organic–inorganic materials. Two new compounds prepared from solution, (PEA)SbCl 6 and (PEA) 4 Sb 2 Cl 12 (PEA=phenylethylammonium), demonstrate how aromatic PEA cation modifies structures relative to inorganic antimony chlorides. In ethylammonium conformation results in a polar chiral stru...

P p European female. H. M. = Hindu male. H. F. Hindu female. P = Palpable but not protruding below costal margin. I decided to try this compound on private patients so asked Dr. Napier for a quantity of it; he very kindly supplied me with a sufficient quantity to treat three patients. Later on I obtained the drug direct from the firm of von Heyden; it is now available from their agents in India...

The ability of macroheterocyclic compounds to complex with ionic species has led to the synthesis and investigation of many multidentate macroheterocyclic species . The most stable complexes are formed between macrocyclic polyetheral ligands (crown ethers) with alkali or alkaline earth metal iona. There is an excellent correlation of the stability of these complexes with the size of the cation ...

a highly selective, sensitive, rapid and economical differential pulse polarographic method has been developed for the determination of trace amounts of antimony in various standard alloys and biological samples after adsorption of its 2-nitroso-1-naphthol-4-sulfonic acid - tetradecyldimethylbenzylammonium chloride on microcrystalline naphthalene in the ph range of 7.5-11.0. after filtration, t...

introduction: the lymphatic system provides one of the main paths for the spread (metastasis) of cancer from one part of body to another. hodgkin’s diseases, lymphocytic leukemia, various metastatic disease and many lymph node disorders can be assessed by lymphoscintigraphy. radionuclide lymphoscintigraphy has been used for many years to define lymphatic drainage of melanoma. the most common ra...

then again there is the Bravo case, and those of Cook, llcMullan and Winslow, and lastly, the more'recent cases of Palmer and Klosowski. Poisoning by salts of antimony has occasionally been recorded in India, but it is usually spoken of as a rare occurrence in this country Is this really the fact, and lias arsenic such an absolute monopoly for criminal purposes as is generally believed ? Althou...

A highly selective, sensitive, rapid and economical differential pulse polarographic method has been developed for the determination of trace amounts of antimony in various standard alloys and biological samples after adsorption of its 2-nitroso-1-naphthol-4-sulfonic acid - tetradecyldimethylbenzylammonium chloride on microcrystalline naphthalene in the pH range of 7.5-11.0. After filtratio...

It is suggested that the story of The Magic Flute owes much to alchemy and related early mineralogy; the operaÕs architectonic structure, including its musical structure, owes much to numerology. The plot is in large part an allegorical account or description of the alchemical process and the production of the PhilosophersÕ Stone from the prima materia stibnite (spiessglanz) (antimony trisulphi...

A systematic study on Lewis-acid/base adducts of N-heterocyclic carbenes (NHCs) and the cyclic (alkyl)(amino)carbene cAACMe (1-(2,6-di-iso-propylphenyl)-3,3,5,5-tetramethyl-pyrrolidin-2-ylidene) with antimony(III) chlorides general formula SbCl2R (R=Cl, Ph, Mes) is presented. The reaction NHCs Me2ImMe (1,3,4,5-tetra-methyl-imidazolin-2-ylidene), iPr2ImMe (1,3-di-isopropyl-4,5-dimethyl-imidazoli...