бор (III) оксид

бор (III) оксид

B₂O₃ A trioxide of boron obtained as rhombic crystals melting at 460_C; used as an intermediate in the production of boron halides and metallic borides and as a thermal neutron absorber in nuclear engineering. Also known as boron oxide.

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Part of Speech: noun
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Industry/Domain: Chemistry
Category: Inorganic chemistry
Company: McGraw-Hill
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бор

Semiconductors; Silicon wafer

Element from group III of the periodic table; acts as an acceptor in silicon; Boron is the only p-type dopant used in silicon device manufacturing.

бор

Energy; Energy efficiency

The chemical element commonly used as the dopant in solar photovoltaic device or cell material.

угљен-моноксид

Chemistry; Inorganic chemistry

CO A colorless, odorless gas resulting from the incomplete oxidation of carbon; found, for example, in mines and automobile exhaust; poisonous to animals.

берилијум оксид

Chemistry; Inorganic chemistry

BeO An amorphous white powder, insoluble in water; used to make beryllium salts and as a refractory. Also known as beryllia.

берилијум-флуорид

Chemistry; Inorganic chemistry

BeF 2 A hygroscopic, amorphous solid with a melting point of 800_C; soluble in water; used in beryllium metallurgy.

бор-нитрид

Chemistry; Inorganic chemistry

BN A binary compound of boron and nitrogen, especially a white, fluffy powder with high chemical and thermal stability and high electrical resistance.

бор-флуорид

Chemistry; Inorganic chemistry

BF 3 A colorless pungent gas in a dry atmosphere; used in industry as an acidic catalyst for polymerizations, esterifications, and alkylations. Also known as boron trifluoride.

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Главни град Тибета од 9. века. Првобитно је имао мало политичког значај, али је од великог верског значаја. 1642. је постао седиште централне владе, а ...