Barium Dioxide

Chemical Designations - Synonyms Barium Dioxide Barium Superoxide Barium Binoxide Chemical Formula Ba02. 

Baryum, n. barium, -chlorhydrat, n. barium chloride. -hydrat, n. barium hydroxide, -hyperoxyd, n. barium peroxide, barium dioxide. -jodid, n. barium iodide, -lack, m. barium lake, -oxydhydrat, n. barium hydroxide. -platincyaniir, n. barium cyano-platinite, barium cyanoplatinate(II). -rho-danid, n. barium thiocyanate, -salz, n. bar ium salt. 

BARIUM PEROXIDE Barium Dioxide, Barium Binoxide Oxidizing Material, II 1 0 0 oxy... 

Chlorine is nearly always prepared in the laboratory by the action of an oxidizing agent—manganese dioxide, lead dioxide, barium dioxide, potassium dichromate,... 

This is a mixture of barium dioxide and potassium ferri-eyanido, used for generating oxygen. The constituents of the mixture are kept stored in separate containers. 

B. C. Dutt and S. N. Sen found that when nitric oxide is passed into a suspension of barium dioxide in water, barium nitrite, not nitrate, is formed. P. Sabatier and J. B. Senderens observed no change when nitric oxide is passed over Cuprous Oxide at 500°. H. A. Auden and G. J. Fowler observed that dry nitric oxide and Silver oxide, at ordinary temp., form silver and silver nitrate P. Sabatier and J. B. Senderens also obtained silver and silver nitrite by passing nitric oxide into water with silver oxide in suspension. C. F. Schonbein found gold oxide is reduced by moist nitric oxide, forming nitrous acid. P. Sabatier and J. B. Senderens found that titanium sesquioxide forms white titanic oxide when heated in an atm. of nitric oxide and that stannous oxide below 500° burns in an atm. of nitric oxide, forming stannic oxide. If nitric oxide be passed into water with lead dioxide in suspension, the water is coloured, and in about 3 hrs., lead nitrite and nitrate are formed, and later, rhombic crystals of a basic nitrite. B. C. Dutt and S. N. Sen said that the nitrate is formed by the action of the dioxide on the nitrite. Lead dioxide is reduced to lead oxide by nitric oxide at 315°, and H. A. Auden and G. J. Fowler found that the reaction begins at 15°, when a basic lead nitrite is... 

Oxidation with Barium Dioxide and Alkali. The alkali lignin was boiled in alkaline solution with an excess of barium dioxide and a little cupric hydroxide under conditions reported to give high yields of vanillic acid (5, 6). Analysis indicated only 13.8% ether extractives and the following yields on the basis of the original alkali lignin 2.8% vanillic acid, 0.4% p-hydroxybenzoic acid, 0.1% vanillin, 0.2% acetovanillone, and a trace of />-hydroxybenzaldehyde. 

Metal Oxides. Hydrogen sulfide may ignite in contact with barium dioxide, chromium trioxide, copper oxide, lead dioxide, manganese dioxide, nickel oxide, silver mono- and dioxides, sodium peroxide, and thallium trioxide. It may explode in the presence of air and mixtures of calcium or barium oxide with mercury or nickel oxide.5... 

The alloy 4 is heated to a white heat with four or five times its weight of zinc in a carbon crucible until the vapour of zinc ceases to be evolved. The friable mass left is crushed and heated with a mixture of barium dioxide and nitrate to about 900° C. in an earthenware crucible. On cooling, the powdered mass is treated with dilute hydrochloric acid, care being taken to keep the temperature down by immersion of the containing vessel in cold water. A fume-cupboard noth a powerful draught is desirable in view of the presence of poisonous osmic tetroxide in the evolved vapours. 

Barium titanate. The synthesis of barium titanate on the basis of HTD and barium dioxide was reported in [53]. The following reactions were studied ... 

SYNS BARIO (PEROSSIDO di) (ITALIAN) BARIUM BINOXIDE BARIUM DIOXIDE BARIUMPEROXID (GERMAN) BARIUMPEROXYDE (DUTCH) BARIUM SUPEROXIDE DIOXYDE de BARYUM (FRENCH) PEROXYDE de BARYUM (FRENCH)... 

Thus hydrogen peroxide, which is, as we have just seen, an endothermic compound, may be formed when dilute hydrochlo ric acid acts on barium dioxide, for under these conditions the reaction... 

Ba02 barium dioxide (simple stoichiometric name), or barium (dioxide)... 

Use Chemicals (barium dioxide, barium hydroxide, blanc fixe), plate glass and porcelain, brick making, rodenticide. 

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