Beryllium oxide BeO

These ion lasers are very inefficient, partly because energy is required first to ionize the atom and then to produce the population inversion. This inefficiency leads to a serious problem of heat dissipation, which is partly solved by using a plasma tube, in which a low-voltage high-current discharge is created in the Ar or Kr gas, made from beryllium oxide, BeO, which is an efficient heat conductor. Water cooling of the tube is also necessary. 

Beryllium is principally consumed in the metallic form, either as an alloy constituent or as the pure metal. Consequendy, there is no industry associated with beryllium compounds except for beryllium oxide, BeO, which is commercially important as a ceramic material. BeO powder is available at 154/kg in 1991. 

Beryllium oxide, BeO, is used in place of Si02 or A1203 in performance-sensitive ceramic applications. It is distinguished by having the highest melting point (2507°C) combined with excellent thermal conductivity and poor electrical conductivity. 

TABLE A2 Thermochemical Data of Selected Chemical Compounds Beryllium oxide (BeO), ideal gas, molecular weight = 25.01158... 

Beryllium oxide (BeO) is a beryllium compound produced in significant commercial quantities. The chemical process starts with minerals containing aluminum silicate and silicon dioxide and undergoes a number of chemical reactions, some at high temperatures, to end up with BeO. 

Uses Beryllium (Be) (when pure) is a hard, grayish metal. In nature, beryllium can be found in compounds in mineral rocks, coal, soil, and volcanic dust. The important compounds of beryllium used in industry are beryllium oxide (BeO), beryllium hydroxide (Be(OH)2), beryllium sulfate (BeS04), and beryllium fluoride (BeF2). Beryllium compounds are commercially mined and purified for use in electrical parts, machine parts, ceramics, aircraft parts, nuclear weapons, and mirrors. Beryllium dust is emitted into the air from burning coal and oil. 

While you can find the molar mass of an element just by looking at the periodic table, you need to do some calculations to find the molar mass of a compound. For example, 1 mol of beryllium oxide, BeO, contains 1 mol of beryllium and 1 mol of oxygen. To find the molar mass of BeO, add the mass of each element that it contains. 

Only the amphoteric beryllium oxide (BeO) also shows some acidic properties, such as dissolving in aqueous solutions containing hydroxide ions ... 

The compounds of beryllium have little special value, except that beryllium oxide, BeO, is used in the uranium piles in which plutonium is made from uranium (Chap. S3),... 

Beryllium reacts with acids and with water to form hydrogen gas. It reacts with oxygen in the air to form beryllium oxide (BeO). The... 

Beryllium ores are first converted to beryllium oxide (BeO) or beryllium hydroxide (Be(OH)2). These compounds are then converted to beryllium chloride (BeCl2) or beryllium fluoride (Bep2). Finally, the pure metal is isolated by (1) an electric current ... 

Some of the beryllium used in the United States is in the form of beryllium oxide (BeO). Beryllium oxide is a white powder that can be made into many different shapes. It is desirable as an electrical insulator because... 

The solubility of beryllium oxide, BeO, in aqueous solutions of the alkali-metal hydroxides increases with increasing alkali concentration. With... 

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