Cobalt antimonate

Exceptions to the use of the root name of the central atom are antimonate, bismuthate, carbonate, cobaltate, nickelate (or niccolate), nitrate, phosphate, tungstate (or wolframate), and zincate. 

Practically complete conversion of propylene and ammonia is achieved to produce acrylonitrile in 65-70% yield. Acetonitrile and HCN are the main byproducts. The Sohio process originally used oxides of Bi, Co, and Mo, and bismuth and cobalt molybdates.898,915,941,953 Other catalysts developed later (uranyl antimonate antimony oxide-iron oxide oxides of Fe, Ce, and Mo mixed oxides of Sb and Sn)898,915,939,953,955,956 produce fewer byproducts and ensure higher yields of acrylonitrile. 

Shortly after the introduction of the bismuth molybdate catalysts, SOHIO developed and commercialized an even more selective catalyst, the uranium antimonate system (4). At about the same time, Distillers Company, Ltd. developed an oxidation catalyst which was a combination of tin and antimony oxides (5). These earlier catalyst systems have essentially been replaced on a commercial scale by multicomponent catalysts which were introduced in 1970 by SOHIO. As their name implies, these catalysts contain a number of elements, the most commonly reported being nickel, cobalt, iron, bismuth, molybdenum, potassium, manganese, and silica (6-8). 

In summary, the violet color (objects 5, 7, 8) is caused by iron in the presence of manganese and cobalt. The turquoise blue color (objects 4, 6, 9) is caused by copper in the presence of iron. These same components (copper, iron) in the presence of lead (probably as lead anti-monate) produce a green color (object 2). Lead antimonate alone causes a yellow-orange color (object 3). Cowell and Werner (I) have found also that cobalt at the 0.2% level can impart a deep blue color, that antimony at the 2% level (as calcium antimonate) can produce an opaque white glass, and that copper in a certain form see below) at the 4% level can give a deep red color. These results are in general agreement with those found by other workers (5). 

The standard method for resolution of coordination complexes involve crystallization of salts with chiral anions such as tartrate, ((+)-tartrato)antimonate(IlI) [19], or tn s-(cysteinesulphinato)cobaltate [20], or rf-[Co(en)2(N02)2] as a chiral cation... 

R HEXAKIS(ACETONE)COBALT(II) BIS(HEXACHLORO-ANTIMONATE(V)J, Co(CH3 COCH3 ] ISbCI I2... 

CoClijNgOijSbjCgH, Cobalt(II), hexa-kis(nitromethane)-, bisfhexachloro-antimonate(V)), 29 114 CoCl 20jSb2C gH34, Cobalt(II), hexa-kis(acetone)-. bis[hexachloroanti-monate(V)], 29 114 CoF,2NgP2C2gH44, CobalXII),... 

Micellar TLC using aqueous solutions of sodium dodecyl sulfate (6.4%) and Triton X-100 (10%) mixed with acetic acid/sodium acetate buffer (pH 4) in 5 8 3 ratio has proved useful for the separation of cobalt (III)-1 -(2-pyridylazo)-2-naphthol complexes on polyamide layer (179). The use of buffered EDTA solutions for separation of cations on zirconium antimonate layers (93) and of buffer solutions at different pH values for soil TLC of Ni, Co and Mn (95) has been reported. 

Cl5H25C0N6O2S3, ((Benzyl 2-carboxymethyl thioether)-0,S)bis(ethyl-enediamine)cobalt(lII) thiocyanate, 44B, 812 Cl sHaoNijOi i,PtSb2, (R)-Propylenediamine-N,N -dimethylethylenediamine-platinum(II) di-ju-(+)-tartrato(4-)-bis(antimonate(III)) dihydrate, 42B, 732... 

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