Pattinson

Lead Chloride. Lead dichloride, PbCl2, forms white, orthorhombic needles some physical properties are given in Table 1. Lead chloride is slightly soluble in dilute hydrochloric acid and ammonia and insoluble in alcohol. It is prepared by the reaction of lead monoxide or basic lead carbonate with hydrochloric acid, or by treating a solution of lead acetate with hydrochloric acid and allowing the precipitate to settle. It easily forms basic chlorides, such as PbCl Pb(OH)2 [15887-88 ] which is known as Pattinson s lead white, an artist s pigment. 

Pattinson. Scott, Changes in Demethanizer Reboiler Solve Efficiency Problems, Oil and Gas Journal, May I, 1989, p. 102. 

Kirchweger, Anton Joseph. The golden chain of Homerus. That is a description of nature and natural things... translated by S. Bacstrom. Revised from the unpublished manuscript by T. H. Pattinson. Lucifer 7, no. 42 (Feb 1891) 500-504. 

Luce-Rozan A variation of the Pattinson process, in which steam is blown through the molten metal as cold water is sprayed on the surface. 

Pattinson (1) A process for extracting silver from lead by selective crystallization. When molten lead is cooled, the first crystals of lead contain less silver than the residual melt. Repetition of this process a number of times yields a silver concentrate which is further purified by cupellation. Invented in 1833 by H. L. Pattinson. Largely superseded by the Parkes process, except for metals containing bismuth for which the Pattinson is the preferred process. See also Luce-Rozan. 

Pattinson s lead white, 14 785 Pauli exclusion principle, silicon-based semiconductors and, 22 235 Pauling, Linus, 25 747-748 Pauling s rules, 22 453... 

PATTINSON PROCESS. Process for the removal of silver from lead. The silver-lead mixture is melted in one of a series of pots and allowed to cool slowly. The lead, that is free from silver or poorer in silver separates out as crystals, which aie removed, leaving the silver-iich lead in the molten state. From a number of such operations in series, a lead rich in silver is obtained, collected, and the silver recovered. 

Pattinson KT, Bowes M, Wise RG, et al. Evaluation of a non-invasive method of assessing opioid induced respiratory depression. Anaesthesia. 2005 60 426-432. 

The Pattinson s process is a rival of the Parke s process in desilverising crude lead. The lead is melted and allowed to solidify partially the solid portion consists of... 

Pattinson F. BS 7799-2 and Common Criteria—Supporting the business of software development, 5 h International CC Conference, Berlin, September 2004. 

Problem 8 Apply phase rule to lead-silver system. Mention the effect of cooling and also explain the Pattinson s process for desilverisation of lead ores. 

Nehl, D. B., McGee, P. A., Torrisi, V., Pattinson, G. S. Allen, S. J. (1999). Patterns of arbuscular mycorrhiza down the profile of a heavy textured soil do not reflect associated colonization potential. New Phytologist, 142, 495-503. 

Crude tetryl commonly contains a small quantity of amorphous-appearing, buff-colored material of high melting point which is insoluble in benzene. The amount of this material is increased by the presence of larger amounts of water in the nitrating acid. Michler and Pattinson found that tetramethyl-benzidine is produced when dimethylaniline is heated with concentrated sulfuric acid. The same material is evidently formed during the preparation of tetryl and gives rise to the three substances indicated below, which constitute the benzene-insoluble impurity. 

Thomas AE, Patterson J, Prentice HG, Brenner MK, Ganczakowski M, Hancock JF, Pattinson JK, Blacklock HA, Hopewell JP. Haemorrhagic cystitis in bone marrow transplantation patients possible increased risk associated with prior busulphan therapy. Bone Marrow Transplant 1987 l(4) 347-55. 

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