Barium carbide

Because of its high reactivity, production of barium by such processes as electrolysis of barium compound solution or high temperature carbon reduction is impossible. Electrolysis of an aqueous barium solution yields Ba(OH)2, whereas carbon reduction of an ore such as BaO produces barium carbide [50813-65-5] BaC2, which is analogous to calcium carbide (see Carbides). Attempts to produce barium by electrolysis of molten barium salts, usually BaCl25 met with only limited success (14), perhaps because of the solubiUty of Ba in BaCl2 (1 )-... 

Monorubidium acetylide ignites in molten sulfur barium carbide ignites in sulfur vapour at 150°C and incandesces while calcium, strontium, barium and uranium carbides need a temperature around 500°C to ignite. 

Hexachloroethane is usually produced commercially by the chlorination of tetrachloroethylene in the presence of ferric chloride at 100-140 C. It may also be obtained as a co-product in the production of tetrachloroethylene by pyrolysis of carbon tetrachloride at 800-900 C or by passing a mixture of ethylene and chlorine over charcoal at 300-350 C. Small amounts of high purity hexachloroethane may be prepared by the action of chlorine on barium carbide (Dacre et al. 1979 Gordon et al. 1991 IARC 1979 Santodonato et al. 1985). 

Barium carbide (acetylide), BaC2 black solid, by reaction of barium oxide and carbon at electric furnace temperatures, reacts with H20 yielding acetylene gas and barium hydroxide. 

In 1895, Frank and Caro found that when barium carbide was heated to redness in air the main product was barium cyanide, but simultaneously a certain amount of barium cyanamide was formed. These two reactions, therefore, proceeded side by side ... 

Barium hydroxide and carbonate arc heated with coko in a revolving electric furnace. Tho barium carbide formed, rolls down into a cooler region and there coiucs into contact with a stream of atmospheric nitrogen, and the resulting cyanide is withdrawn ... 

Reacts to form explosive products with metal amides. Can react violently with barium carbide, bromine pentafluoride, calcium carbide, chlorates, chlorine trifluoride, chromic oxide (CrOa), fluorine. 

Nitrogen, which forms about four-fifths of the air, is produced by the methods we have already indicated, ospecially tho Linde-Hampson process, and is used in tho synthetic preparation of ammonia, apd of cyanamide and cyanides, from calcium and barium carbides respectively. 

BENSULFOID (7704-34-9) Combustible solid (flash point 405°F/207°C). Finely divided dry materia forms explosive mixture with air. The vapor reacts violently with lithium carbide. Reacts violently with many substances, including strong oxidizers, aluminum powders, boron, bromine pentafluoride, bromine trifluoride, calcium hypochlorite, carbides, cesium, chlorates, chlorine dioxide, chlorine trifluoride, chromic acid, chromyl chloride, dichlorine oxide, diethylzinc, fluorine, halogen compounds, hexalithium disilicide, lampblack, lead chlorite, lead dioxide, lithium, powdered nickel, nickel catalysis, red phosphorus, phosphorus trioxide, potassium, potassium chlorite, potassium iodate, potassium peroxoferrate, rubidium acetylide, ruthenium tetraoxide, sodium, sodium chlorite, sodium peroxide, tin, uranium, zinc, zinc(II) nitrate, hexahydrate. Forms heat-, friction-, impact-, and shock-sensitive explosive or pyrophoric mixtures with ammonia, ammonium nitrate, barium bromate, bromates, calcium carbide, charcoal, hydrocarbons, iodates, iodine pentafluoride, iodine penloxide, iron, lead chromate, mercurous oxide, mercury nitrate, mercury oxide, nitryl fluoride, nitrogen dioxide, inorganic perchlorates, potassium bromate, potassium nitride, potassium perchlorate, silver nitrate, sodium hydride, sulfur dichloride. Incompatible with barium carbide, calcium, calcium carbide, calcium phosphide, chromates, chromic acid, chromic... 

CHEMICAL PROPERTIES Se Violently reacts with barium carbide, nitric acid, metals and metal salts Sodium Selenide/Selenite not flammable. 

CHEMICAL PROPERTIES reacts with metal amides to form explosive products violently reacts with barium carbide, bromine pentafluoride, and other acids and oxidizing agents... 

EXPLOSION and FIRE CONCERNS combustible solid NFPA rating (NA) reacts to form explosive products with metal amides contact with acids may cause formation of poisonous hydrogen selenide gas incompatible or reacts violently with barium carbide, bromine pen-tafluoride, chromic oxide, fluorine, lithium carbide, lithium silicon, metals, nickel, sodium, nitric acid, nitrogen trichloride, oxygen, potassium, potassium bromate, rubidium carbide, zinc, silver bromate, uranium, strontium carbide, and thorium carbide toxic gases and vapors may be released in a fire involving selenium, sodium selenite, sodium selenate, and selenium dioxide use water for firefighting purposes. 

When barium carbide is heated in nitrogen, barium cyanide is formed —... 

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