Neodymium chromate

Chromates of the Rare Earth Metals.—A series of isomorphous yellow chromates, sparingly soluble in water, and of general formula E2 (Cr04)3.8H30, where R=Lanthanum, Praseodymium, Neodymium, or Samarium, has been prepared. ... 

Cl3YbCi2H24, Ytterbium, trichlortris-(tetrahydrofuran)-, 139 03Cl Nd2C 2H24. Neodymium, hexachloro-tri (tetrahydrofuran)di-, 27 140 O3C0N2C15H, Cobalt, tricarbonyl(2-(phen-ylazo)phenyl-C, N]-, 26 176 OsCrFNCsHs, Chromate(VI), fluorotrioxo-, pyridinium, 27 310... 

Double chromates of lanthanum, promethium and neodymium of the type RbLn-(Cr04)2 have been found to be anhydrous. The samarium compound crystallized with 0.5 molecules of water whilst those from europium to lutetium had the composition RbLn(Cr04)2,H20. Y-Ray and i.r. studies showed the existence of three structural types as the rare earth element series was transversed. 

Neodymium(III) chloride CljNd 759 48.5 Potassium chromate CrlCO 974 33.0... 

CljNd203C,2H24, Neodymium, hexachloro tris(tetrahydrofuran)di-, 27 140,28 290 Cl P6SnC52H4j, Stannate(l -), hexachloro-, 3,3,4,5-tetrahydro-l,l,3,3-tetraphenyl-1/7-1 A3-triphospholium, 27 255 ClgN2Re2C]2H22> Rhenate(III). octachloro-di-, bis(tetTabutylammonium), 28 332 Cl9Cr2Csj, Chromate(3-), nonachlorodi-, tricesium, 26 379... 

If industry adopts rare earth technology for corrosion inhibition, it will result in an increased demand for some of the rare earths, but there is no pubUshed information of the size of the demand nor its influence on supply. Both of these issues will have an impact on the availability and desirability of rare earths as replacements for chromate as an inhibitor. This paper therefore examines the availability and compares the costs of using the rare earths as chromate replacement chemicals. The focus will be on cerium (Ce), lanthanum (La), neodymium (Nd) and praseodymium (Pr), as well as some other candidates for replacement of chromate (Mo, Ti, V and Zr). This chapter explores the issues associated with... 

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