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Boron elements

Each boron atom is bonded to five others ia the icosahedron as well as either to a carbon atom or to a boron atom ia an adjacent icosahedron. The stmcture is similar to that of rhombohedral boron (see Boron, elemental). The theoretical density for B22C2 is 2.52 g/mL. The rigid framework of... [Pg.219]

Boron tribromide [10294-33A], BBr, is used in the manufacture of diborane and in the production of ultra high purity boron (see Boron, ELEMENTAL BoRON COMPOUNDS). Anhydrous aluminum bromide [7727-15-3], AIBr., is used as an acid catalyst in organic syntheses where it is more reactive and more soluble in organic solvents than AlCl. Tballium bromide [7789AOA], TlBr, is claimed as a component in radiographic image conversion panels (39). [Pg.292]

The most widely used method for the synthesis of iminoboranes involves the 1,2-addition of boron-element bonds such as boron-hydrogen, boron-halogen, boron-carbon, or boron-sulfur bonds across the C=N bond of nitriles thereby producing variously substituted iminoboranes (Eq. (2)). The formation of iminoboranes as well as the stability of the products depends on the substituent on the nitrile group, the nature of the boron-element bond to be cleaved during the 1,2-addition across the C N bond, and to a lesser extent on the non-reacting boron substituents 26T... [Pg.41]

Brass [12597-71-6] [COLOR] (Vol 6) [BEARINGMATERIALS] (Vol4) in batteries [BATTERIES - SECONDARYCELLS - ALKALINE] (Vol 3) boron in treatment of [BORON, ELEMENTAL] (Vol 4) in friction matenals [BRAKE LININGS AND CLUTCH FACINGS] (Vol 4)... [Pg.126]

Hopeite - [BORON, ELEMENTAL] (Vol 4) - [METAL SURFACE TREATMENTS - CHEMICALAND ELECTROCHEMICAL CONVERSION TREATMENTS] (Vol 16)... [Pg.483]

See other pages where Boron elements is mentioned: [Pg.34]    [Pg.134]    [Pg.368]    [Pg.585]    [Pg.587]    [Pg.838]    [Pg.921]    [Pg.929]    [Pg.323]    [Pg.183]    [Pg.183]    [Pg.184]    [Pg.185]    [Pg.37]    [Pg.38]    [Pg.183]    [Pg.183]    [Pg.184]    [Pg.185]    [Pg.292]    [Pg.21]    [Pg.34]    [Pg.122]    [Pg.122]    [Pg.123]    [Pg.123]    [Pg.124]    [Pg.124]    [Pg.134]    [Pg.239]    [Pg.248]    [Pg.297]    [Pg.368]    [Pg.397]    [Pg.584]    [Pg.585]    [Pg.587]    [Pg.592]    [Pg.640]    [Pg.640]    [Pg.649]   
See also in sourсe #XX -- [ Pg.9 , Pg.121 ]



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Boron elemental

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