Barium fluorinated compounds

Lubricant - [MOLYBDENUMAND COMPOUNDS] (Vol 16) -additives [SULFURIZATION AND SULFURCHLORINATION] (Vol 23) -barium as [BARIUM] (Vol 3) -bismuth compounds as [BISMUTH COMPOUNDS] (Vol 4) -boron nitride as [NITRIDES] (Vol 17) -boron tnfluonde as [FLUORINE COMPOUNDS,INORGANIC - BORON - BORON TRIFLUORIDE] (Vol 11) -ceriumcompdm [CERIUM AND CERIUM COMPOUNDS] (Vol 5) -glycerol as [GLYCEROL] (Vol 12) -hydrogenated terphenyls m [BIPHENYL AND TERPHENYLS] (Vol 4) -sodium tetrasulfidemmfg of [SODIUM COMPOUNDS - SODIUM SULFIDES] (Vol 22) -use of lime and limestone [LIME AND LIMESTONE] (Vol 15)... 

Sealants - [ELASTOMERSSYNTHETIC - POLYISOPRENE] (Vol 9) - [SEALANTS] (Vol 21) -acrylics [ACRYLICESTERPOLYMERS - SURVEY] (Voll) -barium compds in [BARIUM COMPOUNDS] (Vol 3) -based on liquid polysulfides [POLYMERS CONTAINING SULFUR - POLYSULFIDES] (Vol 19) -defoamersin [DEFOAMERS] (Vol 7) -fiom fluorosilicones [FLUORINE COMPOUNDS,ORGANIC - POLY(FLUOROSILICONES)] (Volll) -hydrocarbon resins in [HYDROCARBON RESINS] (Vol 13) -lecithin in (LECITHIN] (Vol 15) -organolithiumcmpdsinprdnof [LITHIUM AND LITHIUM COMPOUNDS] (Vol 15) -polysulfide curing [PEROXIDES AND PEROXIDE COMPOUNDS - INORGANIC PEROXIDES] (Vol 18) -propylene oxide in mfg of [PROPYLENE OXIDE] (Vol 20) -PVB m [VINYL POLYMERS - VINYL ACETAL POLYMERS] (Vol 24) -rheological measurements [RHEOLOGICAL MEASUREMENTS] (Vol 21) -from styrenic block copolymers [ELASTOMERS SYNTHETIC - THERMOPLASTIC ELASTOMERS] (Vol 9) -use of dispersants [DISPERSANTS] (Vol 8)... 

Additives used in final products Fillers antimony trioxide, aramid, barium sulfate, boron nitride, calcinated kaolin, carbon black, carbon fiber, glass fiber, glass spheres, mica, montmorillonite, talc, titanium dioxide, zinc borate Antistatics antimony-doped tin oxide, carbon nanotubes, polyaniline, polyisonaphthalene Antiblocking calcium carbonate, diatomaceous earth, silicone fluid, spherical silicone resin, synthetic silica Release calcium stearate, fluorine compounds, glycerol bistearate, pentaerythritol ester, silane modified silica, zinc stearate Slip spherical silica, silicone oil ... 

Select a specihc compound of each of the following elements and give an important or interesting fact about it sodium, magnesium, barium, fluorine, iodine, phosphorus, sulfur, silicon, and zinc. 

However, the peroxomonophosphate ion decomposes relatively rapidly ia aqueous solution. A mixture of peroxodiphosphoric and peroxomonophoshoric acids can be produced by treatiag a cold phosphoric acid solution with elemental fluorine (qv) (49). Peroxodiphosphoric acid is not produced commercially. Ammonium, lithium, sodium, potassium, mbidium, cesium, barium, 2iac, lead, and silver salts have all been reported. The crystal stmctures of the ammonium, lithium, sodium, and potassium compounds, which crysta11i2e with varyiag numbers of water molecules, have been determined (50). 

Write formulas for the compounds formed by the reaction of (a) sodium and sulfur, (b) barium and bromine, (c) aluminum and oxygen, (d) lithium and nitrogen, (e) magnesium and nitrogen, (/) aluminum and fluorine, and (g) magnesium and sulfur. 

The exceptional character o fluorine.—Fluorine has a little more individuality, so to speak, than the other three members of the family (1) There are no compounds of oxygen and fluorine (2) Chlorine, bromine, and iodine or the haloid acids show no signs of the remarkable effect of hydrofluoric acid and of fluorine on silicon (3) The solubilities of the sulphates, nitrates, and chlorides of barium, strontium, calcium, and magnesium decrease with increasing at. wt. of the metal, while the solubilities of the hydroxides increase the solubilities of the iodides, bromides, and chlorides... 

There are hardly any reports on the use of magnesium and barium fluoride for introducing fluorine into organic compounds. Calcium fluoride is used along with alkali metal or other metal fluorides to assist and enhance the incorporation of fluorine. 

Compound (a) is composed of a metal (barium) and a nonmetal (fluorine) and is likely to be ionic. Compounds (b)-(d) are composed entirely of nonmetals and therefore are probably molecular. 

Sulfuryl fluoride has been prepared by a number of methods. Most of these consist of the fluorination of a sulfur-oxygen compound, as in the direct reaction of elemental fluorine with sulfur dioxide,1 a metal sulfate, or a metal thiosulfate.2 A well-known exception to this general method is the pyrolysis of barium fluorosulfate 3... 

The compound [Ca(hfac)2(H20)2]2153 (Fig. 38) is a centrosymmetric dimer in the solid state, while the analogous barium complex, [Ba(hfac)2 (H20)]x,153 exists as a polymer. Both compounds have M-F interactions similar to those described for [Ba2(hfac)4(Et20)L The smaller size of calcium is probably responsible for the structural differences between these two water adducts. The volatility of these fluorinated complexes is certainly decreased by the M-F interactions, as well as by the overall oligomeric structure of the compounds. What relationship metal ligand interactions of this type play in the incorporation of BaF2 in films prepared from these compounds has not yet been elucidated. Interestingly, no base-free fluorinated /3-diketonate compounds have been structurally characterized. 

Organic fluorides are generally less toxic than other halogenated hydrocarbons. Fluorocarbons are chemicaUy inert to most materials but can react violendy with barium, sodium, and potassium. Fluoroamides react violendy with lithium tetrahydroaluminate and with sodium at very high temperatures. Some fluorinated cyclopropenyl methyl ethers react violently with water or methanol. Some fluorodinitro compounds of methane and ethane are sensitive explosives. When heated to decomposition they emit toxic fumes of F. Common air contaminants. 

SAFETY PROFILE Confirmed carcinogen with experimental carcinogenic and tumorigenic data. Poison by intratracheal, intravenous, and subcutaneous routes. Mutation data reported. Can react violently with fluorine, hydrogen peroxide, hydrogen sulfide, iodine, barium oxide + air. See also NICKEL COMPOUNDS. 

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