Antimony, Black Chloride

A similar type of cationic palladium complex 21 was also obtained by the action of antimony(V) chloride upon the cyclopropenylidene-palladium complex 20, ° which was prepared from the 3,3-dichlorocyclopropene 19 and palladium black. 

Another way to obtain, under suitable conditions, stable dispersions of sur-factant-stabihzed nanoparticles consists in the direct suspension of some materials in w/o microemulsions. The formation of stable dispersions of rutile (size 80-450 mn) and carbon black (200-500 nm) in AOT// -xylene and of rutile, lead chloride, aluminium, antimony in solutions of calcium soaps in benzene has been reported [219,220],... 

Cells are assembled in the fully charged state and the positive electrode mix contains antimony trichloride (29%), sodium chloride (15%), aluminium chloride (48%), carbon black (8%) and small amounts of sulphur, which are added to give a higher average discharge voltage. 

Ferric ammonium antimony chloride, 2FeCl3.9NH4C1.3SbCl4, crystallises in black octahedra from solutions of the constituent chlorides in concentrated hydrochloric acid.8... 

During the fifteenth century the metals zinc, antimony, bismuth, and probably cobalt were discovered, together with many new reactions now used in quantitative analysis. For example, A. Libavius (1540-1616) noted how ammonia in water could be determined by the blue color formed with a copper salt. Robert Boyle (1627-1691) was the first to use a solution of hydrogen sulfide (which he made from flowers of sulfur, potash, and ammonium chloride) as an analytical reagent, and he noted the black precipitate it formed with lead, gold, and mercury. 

Make a white cardboard model of a tabby cat, and treat with a groundwork of antimony chloride, cross by markings of lead acetate. Now when antimony chloride and lead acetate are exposed to the fiunes of hydrogen sulphide, it gives the former (previoudy invisible), an orange tint and the latter a black one under such circumstances our cat becomes a tiger. 

Butter of Antimony. The liquid chloride of antimony commercially l own by this name, is usn y made by dissolving crude or roasted black antimony in muriatic acid with tho addition of a little nitric acid. It usually contains pemitrate of iron. 

I refer to the orange-yellow sulphide, produced by the reaction of sulphuretted hydrogen upon the proto-chloride of antimony, the black native sulphide, and the brown-red sulphide, a modification of the preceding one, which was observed for the first time by Fuchs, and has recently been studied by Mr Rose. 

M. E. Kopp says — The sulphide of antimony, according to its physical state and Its mode of preparation, may present very varied colorations. It is crystalline and black-gray in the native state. When kept in the molten state for a long time and suddenly cooled, it becomes hyacinth-red. Precipitated by sulphuretted hydrogen from an antimonic solution, it is of an orange colour more or less red. In the kermes state it is red-brown. Lastly, when obtained from the reaction of a soluble hyposulphite upon the chloride of antimony, its red colour is more or less bright, and more or less orange or crimson, in accordance with the temperature employed and the concentration of the liquors. 

As the solution of chloride of antimony always contains a large proportion of chloride of iron, it becomes easy to watch the working of this latter operation. All the iron remains in solution in the mother-liquors of the sulphide of antimony but as soon as these are brought in contact with sulphide of calcium the insoluble sulphide of iron is formed. As long as the black precipitate remains, the. mother-liquors, charged with sulphurous acid, have not been added... 

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