SbF3 Antimony fluoride

CsCl HgCl2=3 1, 2 1, 1 1, 2 3, 1 2, and 1 5 and five caesium antimonious fluorides where CsF SbF3=l 1, 3 4, 4 7, 1 2, and 1 3. According to I. Remsen s rale (1889) When a halide of any element combines with a halide of an alkali metal to form a double salt, the number of molecules of the alkali salt which are added to one molecule of the other halide is never greater, and is generally less than the number of halogen atoms contained in the latter—for instance, in the double fluoride of sodium and aluminium, where the negative halide has three fluorine atoms, no more than three molecules of sodium fluoride will be found united with one of aluminium fluoride. 

SbCl3-3CsCl Antimony(III) cesium chloride, 4 6 SbF3 Antimony (III) fluoride, 4 134 Sbl3 Antimony(III) iodide, 1 104 SeCNK Potassium selenocyanate, 2 186... 

Antimony fluoride aq SbF3 -1.7 Chromous chloride aq CrCl2 +18.6... 

Discrete [F(SbF3)4]" units are present in the crystals of KSb4Fi3 (39) and these consist of fluoride ions tetracoordinated by antimony(III) fluoride molecules through the antimony atoms. The coordinate bond lengths are 2.87 A and hence longer than the antimony-fluorine distances in the antimony(III) fluoride molecules, while the Sb-F bonds in the complex anion under consideration are 2.01 A and thus slightly longer than in the uncoordinated SbFs molecules (Fig. 4). 

Several intermediate antimony halides, such as (SbF3)I(SbF5)y, with jc = y — 1 x = 6 and y = 5 x = 2 and y = 1 x = 3 and y = 1 are known. Their existence, and their structures, depend on the high fluoride ion affinity of SbF5, whereby SbF6 and Sb2F i ions and complex polymeric cations, such as (Sb3Fg ) are formed. 

Arsenic trifluoride, ASF3, a molecular species, is synthesized from AS2O3 and anhydrous HF. Antimony trifluoride, SbF3, can be made by the action of aqueous HF on Sb203. Both fluorides are important agents for fluorination of chlorinated substrates. 

Antimony Trifluoride. Antimony(III) fluoride [7783-56-4], SbF3, is a white, crystalline, orthorhombic solid vapor pressure at the mp, 26.34... 

Antimony(III) fluoride SbF3 —46 Beryllium chloride BeClj -26.5... 

Of late, double fluoride of antimony and potassium, or of antimony and sodium, have been used as substitutes for tartar emetic also double oxalate of antimony and potassium, SbK8(C2O4)3.6H20, double fluoride, SbFj.NaF, and the salt SbF3(NH.,)2S04 are used. The essential thing for an antimony salt for use as a mordant is that it shall be soluble in water, not be liable to precipitate antimony oxide, and yet be readily decomposable. 

Antimony(lll) fluoride SbF3 -46 Barium sulfate BaS04 -65.8... 

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