Bismuth trifluoride

Bismuth Trifluoride. Bismuth(III) duoride is a white to grey-white powder, density 8.3 g/mL, that is essentially isomorphous with orthorhombic YF, requiring nine-coordination about the bismuth (11). It has been suggested that BiF is best considered an eight-coordinate stmcture with the deviation from the YF stmcture resulting from stereochemical activity of the bismuth lone-pair electrons. In accord with its stmcture, the compound is the most ionic of the bismuth haUdes. It is almost insoluble in water (5.03 0.05 x 10 M at pH 1.15) and dissolves only to the extent of 0.010 g per 100 g of anhydrous HF at 12.4°C. 

Bismuth salts, 4 25 Bismuth sesquisulfide, 4 24 Bismuth subcarbonate, 4 36 Bismuth subgallate, 4 36 Bismuth subhalides, 4 19 Bismuth subnitrate, 4 36 Bismuth subsalicylate, 4 1, 36 medical applications of, 22 11-12 Bismuth(III) sulfate, 4 25 Bismuth(III) sulfide, 4 24 Bismuth sulfides, 4 24-25 Bismuth thiolates, 4 25 Bismuth-tin alloy waterfowl shot, 4 15 Bismuth triacetate, 4 25 Bismuth tribromide, 4 21 physical properties of, 4 20t Bismuth trichloride, 4 19-20 physical properties of, 4 20t Bismuth trifluoride, 4 19 physical properties of, 4 20t Bismuth trihalides, 4 19 Bismuth triiodide, 4 21-22 physical properties of, 4 20t Bismuth trinitrate pentahydrate, 4 25 Bismuth trioxide, 4 23-24 physical properties of, 4 20t Bismuth triperchlorate pentahydrate, 4 25... 

Bismuth trioxide reacts with hydrofluoric acid forming bismuth trifluoride, BiFs. 

BISMUTH-HALOGEN COMPOUNDS 28.18.1 Bismuth(ni) Halides 28.18.tl Bismuth trifluoride... 

Bismuth trifluoride is only slightly soluble, and it precipitates from solutions containing Bi3+ when an excess of F is added. 

Bismuth trifluoride has the CaFg structure with twelve extra fluorine atoms at the mid-points of the edges and one at the centre of the unit cell (Fig. 219). 

The water is taken up by the sulfuric acid. Antimony and bismuth trifluorides are formed from the corresponding oxide and concentrated aqueous... 

Bismuth line, 294 Bismuthotungstates, 1042 Bismuth pentafluoride, 292 Bismuth tribromide, 291 Bismuth trichloride, 290 Bismuth trifluoride, 290 Bismuth triiodide, 292 Bismuth trioxide, 284 Bond dissociation Si=Cr, 184 Bond energies Group IVB elements, 185 Bonds... 

Bonds to Halogen.—Antimonyim) Compounds. Vapour-pressure data and values of the sublimation enthalpy have been obtained for antimony trifluoride and bismuth trifluoride, using a method based on differential calorimetry combined with the Knudsen effusion technique. The vapour-pressure equations for SbF3 and Bip3 are, respectively ... 

CAS 7787-61-3 EINECS/ELINCS 232-124-8 Synonyms Bismuth trifluoride Empincai BiFa... 

Bismuth (III) telluride Bismuth telluride, undoped. See Bismuth telluride Bismuth ternitrate. See Bismuth nitrate Bismuth trifluoride. See Bismuth fluoride Bismuth trihydrate Bismuth trihydroxide. See Bismuth hydroxide... 

Stoces, M. and Svancara, I. (2013) Bismuth-trifluoride modified carbon paste electrode for electrochemical stripping analysis of heavy metals. Int. 

The heavier phosphorus trihaUdes (PX3, X = Cl, Br, I) are prepared by direct halogenation. The trifluoride, on the other hand, is best synthesized by treating the trichloride with an ionic fluoride such as CaF2 or ZnF2- The arsenic, antimony, and bismuth trifluorides are prepared by adding hydrogen fluoride to the oxides. (If fluorine gas is used, the pentafluorides result.) The other trihalides of arsenic and antimony can be produced by direct halogenation of either the elements or the trioxides, while the bismuth trihalides are best produced by the action of aqueous hydrohalic acids on 61203. 

The tris(thiourea)Bi(in) complex is decomposed by fluoride ions with the formation of insoluble bismuth trifluoride BiFs. 

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