Cerous chloride

Metallic cerium is prepared by metahothermic reduction techniques, such as reducing cerous fluoride with calcium, or using electrolysis of molten cerous chloride or others processes. The metahothermic technique produces high-purity cerium. 

Halides. Cerous chloride hydrate [19423-76-8] CeCl usually with n 6, on heating tends to form cerous oxychloride [15600-64-3] ... 

CeOCl. The anhydrous cerous chloride [7790-86-5] can be made from the hydrated salt by suppressing oxyhahde formation during thermal dehydration by the presence of hydrogen chloride or ammonium chloride. The anhydrous salt is soluble in a variety of organic solvents, eg, alcohols and ethers, has mp 817°C, and can be volatilized at high temperatures in vacuum. 

Cerous carbonate octahydrate, 5 676 Cerous carbonate trihydrate, 5 676 Cerous chloride hydrate, 5 676 Cerous fluoride, 5 676 Cerous hydroxide, 5 676 Cerous oxalate, 5 676 Cerous oxychloride, 5 676 Cerous oxyfluoride, 5 676 CerOx Corporation electrolysis cells, 9 669-670... 

Formula CeCF MW 246.47 forms heptahydrate, CeCl3 7H20, [18618-55-8] Synonym cerous chloride... 

J. G. Gahn in Sweden and N.-L. Vauquelin in France tried in vain to obtain metallic cerium. C. G. Mosander prepared anhydrous cerous chloride and subjected it for a long time to the action of potassium vapor. After washing the residue with cold alcohol, he obtained a brown powder which,... 

Cerous Orthovanadate, CeV04, has been prepared as dark red needles by fusing sodium metavanadate with cerous chloride.5... 

By substituting cerous chloride for magnesium chloride in the solution the pyrophoric nature of the deposit is not increased. Temperature has considerable influence, because in certain cases the deposit formed in the cold is not pyrophoric, whilst that produced at 60° C. exhibits pronounced pyrophoric properties. Analysis of these alloys always shows the presence of a small quantity of mag-nesium, generally between 0 4 and 0-5 per cent. 

SYNS CERIUM(III) CHLORIDE CERIUM TRICHLORIDE CEROUS CHLORIDE... 

Molybdates of the Rare Earth Metals. —Salts of the type M2(Mo04)3 have been described. The cerous salt is obtained as yellow crystals by fusing together anhydrous cerous chloride and sodium molybdate. The density of the molten salt is 4-56. The crystals are similar to those of lead and bismuth molybdates, as also are those of didymium molybdate. ... 

Calcium Peroxide 1305-79-9 Cerous Chloride 7790-86-5 Chromic Hydroxide 1308-14-1... 

Catechol, 47, 60, 120, 128, 451, 467-A68, 837, 857, 1011-1012 carbonate, 119-120 dibenzenesulfonate, 47 dichloromethylene ether, 119-120 Catechyl phosphorus trichloride, 120 Cathyl chloride (Ethyl chloroformate), 86, 239, 363, 364-367 Cedrol.913 Cdite, 120 Cellobiose, 893 o-Cellobiose oclaacetate, 158 Cfmulsol, 820 o-Cephalins, 847 Ceric acetate, 1062 Ceric ammonium nitrate, 120-121 Cerous chloride, 121 Cerous hydroxide, 121 Cesium fluoride, 117,121, 933 Cetyl alcohol, 497, 862 Cetyl iodide, 497, 862, 1279 Cetyltrimethylamroonium horohydride, 1143 Cetyltrimelhylaromonium bromide, 121-122 Cevadine, 798 Ovine, 59... 

Ceric hydroxide, Ce(OH)4, is not known. A hydrated oxide, probably Ce20(0H)6, forms as a yellow gelatinous precipitate when ammonia or an alkali hydroxide is added to a ceric salt. It may also be prepared by the oxidation of cerous hydroxide. It dissolves in nitric acid, forming a ceric salt, in sulfuric acid yielding a partially reduced product, and in hydrochloric acid giving cerous chloride and chlorine. 

There are several methods available to determine the amount of carbon-bonded fluorine. One of the earlier methods employed the Schoniger Combustion technique followed by thorium nitrate or cerous chloride titration using sodium alizarin sulfonate or murexide as the indicator (21). 

Keller et al. (1945) described the preparation of large amounts of cerium metal by the reduction of cerous chloride with calcium. The reductions were on a several hundred grams scale in dolmitic oxide-lined steel bombs. Next a vacuum melting step in Ca-MgO crucibles was used to remove the excess calcium added to the reaction mixture to promote good yields. Because of the larger scale of these operations, oxide contamination, although certain because of reaction of the product metal with the containers, was not such as to prevent agglomeration of the metal. 

Catalysis of reactions with quinones by cerous chloride... 

Hinton, B.R.W., Wilson, L. (1989). The corrosion inhibition of zinc with cerous chloride,Corrosion Science, Vol. 29, No. 8, 1989, pp. 967-975, 977-985, ISSN 0010-938X... 

Aminoquinones. A mixture of 5,8-quinolinequinone, p-chloraniline, cerous chloride, and alcohol stirred 4 days at 25° while a slow stream of alcohol-satd. air is passed in 6-p-chloranilino-5,8-quinolinequinone. Y 68%.—A mixture of the 6- and 7-subst. derivatives results in low yield in the absence of cerous chloride. F. e. and reactions s. Y. T. Pratt, J. Org. Ghem. 27, 3905 (1962). 

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