boron

boron (tri) fluoride etherate;boron fluoride ethyl ether;

bending strength and thermal shock resistance were improve by addictivity of Boron nitrid.

Azomethine H Spectrophotometric Method for Determining Boron in Humic Fertilizer is described.

Crystalline polypyrene microsheets were electrosynthesized in the medium of boron trifluoride diethyl etherate for the first time.

Reaction of ferrocenylphenylcarbinol with ethereal solution of boron trifluoride in dichloride methane formed the relevant ferrocenylphenylmethyl carbocation.

The carbothermic method of preparation for titanium diboride with titanium oxide and boron oxide in an arc furnace is studied.

The separation conditions of carboboride and boron nitride were established by detecting the dissolution curve of electrolytical residua.

"Boron: Semimetallic chemical element, chemical symbol B, atomic number 5.

Zhuanmiao boron deposit is a szaibelyite deposit which is located in Liaoning-Jilin rift zone.

Boron carbide can be obtained by means of thermal decomposition of triethylborane, tripropylborane and tributylborane, respectively.

Those minim nutritive elements' contents wane obviously ,such as quickly availablephosphor, Kalium Potass, Boron ,etc;

"At low applied forces, the hardness of rhenium diboride is equivalent to cubic boron nitride, the second-hardest material known, Kaner said.

By fuming with sulfuric-phosphoric acid mixture the residual hydrofluoride was then expelled，and boron was finally determined by curcumin spectrophotometry after distillation.

An investigation is also made on determining DMDAAC qualitatively by bromophenol blue test and quantitatively by tetraphenyl boron sodium precipitation reac...

Thus, the boron-bearing rock system and the magnesian rocks are the foundation of the borate deposits, whereas regional metamorphism and migmatitization and tectonism are the necessary conditions.

Rare earth metals, such as metallic neodymium and metallic didymium (metallic praseodymium-neodymium), are used for rare earth magnets, mainly neodymium-iron-boron magnet.

The effect of rare earths on the kinetics of boron-aluminized layer growth of armco iron using pasty method at 890, 920 and 950 ℃ was studied.

The boron deficiency plant appears inter-venial chlorosis, thickening, crisping leaves and increased leaf weight ratio (LWR).

The Didot Perceval, named after the manuscript\'s former owner, and purportedly a prosification of Robert de Boron\'s sequel to Joseph d\'Arimathie.