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The nuclear industry enriches natural boron to nearly pure 10 B. The less-valuable by-product, depleted boron, is nearly pure 11 B. [149] Enriched boron or 10 B is used in both radiation shielding and is the primary nuclide used in neutron capture therapy of cancer.
Diborane(6), commonly known as diborane, is the chemical compound with the formula B 2 H 6.It is a highly toxic, colorless, and pyrophoric gas with a repulsively sweet odor. . Given its simple formula, borane is a fundamental boron compou
Boron (5 B) naturally occurs as isotopes 10 B and 11 B, the latter of which makes up about 80% of natural boron. There are 13 radioisotopes that have been discovered, with mass numbers from 7 to 21, all with short half-lives, the longest being that of 8 B, with a half-life of only 771.9(9) ms and 12 B with a half-life of 20.20(2) ms.
In this structure, there are two four-coordinate boron centers and two three-coordinate boron centers. It is a proton conductor at temperatures above 21 °C. Conductivity is maximum along the b-axis. [16] Borax is also easily converted to boric acid and other borates, which have many applications. Its reaction with hydrochloric acid to form ...
Articles containing flammable liquid, not otherwise specified UN 3541: 4.1: Articles containing flammable solid, not otherwise specified UN 3542: 4.2: Articles containing a substance liable to spontaneous combustion, not otherwise specified UN 3543: 4.3: Articles containing a substance which emits flammable gas in contact with water, not ...
Approximately 90% of the tritium in PWR coolants is produced by reactions of boron-10 with neutrons. Since tritium itself is a radioactive isotope of hydrogen, the coolant becomes contaminated with radioactive isotopes and must be kept from leaking into the environment. Additionally, this effect must be taken into account for longer cycles of ...
Trimethyl borate is the main precursor to sodium borohydride by its reaction with sodium hydride in the Brown-Schlesinger process: . 4 NaH + B(OCH 3) 3 → NaBH 4 + 3 NaOCH 3. It is a gaseous anti-oxidant in brazing and solder flux.
Boron tribromide, BBr 3, is a colorless, fuming liquid compound containing boron and bromine. Commercial samples usually are amber to red/brown, due to weak bromine contamination. Commercial samples usually are amber to red/brown, due to weak bromine contamination.