Arsenic oxide fluorides

Arsenic, phosphorus, fluorides, petroleum oils, calcium oxide and hydroxide, phenols... 

Vesicants produce acidic products including hydrogen chloride (HC1), hydrogen bromide (HBr), or hydrogen fluoride (HF), and ethanolamines, thioglycols, or thioethers when hydrolyzed. Arsenous oxide decomposition products from HL (C03-A010) are toxic and may also have vesicant properties. HL will also produce acetylene at higher pH. 

Hydrogen cyanide is highly soluble and stable in water. Many others decompose into hydrogen cyanide and/or corrosives such as hydrogen chloride (HCl), hydrogen bromide (HBr), hydrogen fluoride (HF), or hydrogen iodide (HI). Some components may produce arsenous oxides or arsenic salts when hydrolyzed. 

Arsenic(III) fluoride is prepared by reacting arsenic(III) oxide with hydrogen fluoride, with calcium fluoride and sulfuric acid, or with fluorosulfonic acid.12... 

Arsenic(III) fluoride, like antimony(III) fluoride (see Section 12.1.), is used to substitute fluorine for chlorine, bromine and iodine not only at carbon but also at other atoms, such as phosphorus, boron or metals. Chlorophosphanes undergo oxidative fluorination with arsenic(III) fluoride [or antimony(III) fluoride] to trifluoro-A5-phosphanes 1. 

Although Moissan prepared arsenic (III) fluoride by the action of fluorine on arsenic and on arsenic (III) chloride,1 the only convenient laboratory procedure involves distillation of a mixture of arsenic (III) oxide, calcium fluoride, and concentrated sulfuric acid.2 University of Illinois, Urbana, Bl. t University of Michigan, Ann Arbor, Mich. 

As the cofacial dimer 1 is a readily available compound, the best method for the preparation of thiatriazinium salts is to treat 1 with nitrosyl tetrafluoroborate or hexafluorophosphate. The reaction mixture must be kept under inert gas during the evolution of nitrogen oxide. A direct method is the reaction of 1-fluorothiatriazines, e.g. 3, with arsenic(V) fluoride or phosphorus pentafluoride. The so-called silver salt method consists of the reaction of 1-chlorothia-triazincs with silver(I) hexafluoroarsenate in liquid sulfur dioxide. 

Oxidation Reactions with Arsenic Pentafluoride. Arsenic penta-fluoride (Ozark Mahoning Company) is handled on a calibrated Pyrex vacuum line equipped with a mercury manometer. The vacuum line is thoroughly flamed out under vacuum before use. The joints on... 

ARSENOUS OXIDE (1327-53-3) Reacts, possibly violently, with acids, aluminum, aluminum chloride, chlorine trifluoride, chromic oxide, fluorine, fluorides, halogens, hydrogen fluoride, mercury, oxygen fluoride, phosphorus pentoxide, rubidium acetylide, sodium chlorate, sodium hydroxide, sulfuric acid, tannic acid, zinc, iron in solution. Contact with acids or acid mists releases deadly arsine gas. 

Arsenic fluoride. See Arsenic trifluoride Arsenic (V) fluoride. See Arsenic pentafluoride Arsenic hydride. See Arsine Arsenic, metallic. See Arsenic Arsenic oxide Arsenic (III) oxide. See Arsenic tri oxide... 

Arsenous anhydride. See Arsenic trioxide Arsenous chloride. See Arsenic trichloride Arsenous fluoride. See Arsenic trifluoride Arsenous hydride. See Arsine Arsenous oxide Arsenous oxide anhydride. 

Reactivity Hydrolyzes rapidly on contact with water or moist air. Avoid alkalis. Thermal decomposition may evolve arsenic oxides and corrosive fluorides. 

In films generated in oxygen plasma, the contribution of arsenic oxides exceeds that of indium oxides. Addition of NF3 gas to oxygen plasma results in a strong shift in synthesis towards formation of indium and arsenic fluorides. All indium in the film is combined with fluorine, and the arsenic peak is a superposition of several components -arsenic oxyfluorides. Composition of the generated film also includes nitrogen. 

Hydrogen fluoride Acetic anhydride, 2-aminoethanol, ammonia, arsenic trioxide, chlorosulfonic acid, ethylenediamine, ethyleneimine, fluorine, HgO, oleum, phosphorus trioxide, propylene oxide, sodium, sulfuric acid, vinyl acetate... 

The principal constituents of the paniculate matter are lead/zinc and iron oxides, but oxides of metals such as arsenic, antimony, cadmium, copper, and mercury are also present, along with metallic sulfates. Dust from raw materials handling contains metals, mainly in sulfidic form, although chlorides, fluorides, and metals in other chemical forms may be present. Off-gases contain fine dust panicles and volatile impurities such as arsenic, fluorine, and mercury. 

The magnetic criterion is particularly valuable because it provides a basis for differentiating sharply between essentially ionic and essentially electron-pair bonds Experimental data have as yet been obtained for only a few of the interesting compounds, but these indicate that oxides and fluorides of most metals are ionic. Electron-pair bonds are formed by most of the transition elements with sulfur, selenium, tellurium, phosphorus, arsenic and antimony, as in the sulfide minerals (pyrite, molybdenite, skutterudite, etc.). The halogens other than fluorine form electron-pair bonds with metals of the palladium and platinum groups and sometimes, but not always, with iron-group metals. 

Emissions from sinter plants are generated from raw material handling, windbox exhaust, sinter discharge (associated sinter crushers and hot screens), and from the cooler and cold screen. The primary source of particulate emissions, mainly irons oxides, magnesium oxide, sulfur oxides, carbonaceous compounds, aliphatic hydrocarbons, and chlorides, are due to the windbox exhaust. Contaminants such as fluorides, ammonia, and arsenic may also be present. At the discharge end,... 

Hydrogen fluoride Oxides Sodium nitrate Arsenic trioxide, etc. 

Arsenic trioxide and calcium oxide incandesce in contact with liquid hydrogen fluoride. 

Gillespie, R. J. et al., J. Chem. Soc., Chem. Comm., 1977, 595-597 Although stable at below -40°C in absence of moisture, it will explode if warmed rapidly (>20°C/h). Explosive decomposition of the solid difluoride oxide at -196°C occurs on contact with mercury, or antimony pentafluoride or arsenic pentafluoride [1], The fluoride explodes at about 0°C, and also in contact with arsenic pentafluoride in absence of hydrogen fluoride at -78°C [2],... 

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