Borates

salts of boric acid. For the most part, borates are not salts of boric acid H₃BO₃ itself but of polyboric acids n B₂O₃m H₂O, which are not isolated in a free state (for example, tetraboric acid H₂B₄O₇ or 2B₂O₃ H₂O). Thus, neutralization of H₃BO₃ by alkalis produces sodium tetraborate, or borax:

2NaOH + 4H₃BO₃ = Na₂B₄O₇ + 7H₂O

Salts of alkali metals constitute most of the water-soluble borates. Borates are used for softening water, as an ingredient in laundry powders, and in the glass industry. In laboratory practice, borates are used in the preparation of buffer systems and as fluxes. Lead metaborates Pb(BO₂)₂ are used in the production of radiation protection screens.

单词	borates
释义	DictionarySeeborate Borates Borates salts of boric acid. For the most part, borates are not salts of boric acid H₃BO₃ itself but of polyboric acids n B₂O₃m H₂O, which are not isolated in a free state (for example, tetraboric acid H₂B₄O₇ or 2B₂O₃ H₂O). Thus, neutralization of H₃BO₃ by alkalis produces sodium tetraborate, or borax: 2NaOH + 4H₃BO₃ = Na₂B₄O₇ + 7H₂O Salts of alkali metals constitute most of the water-soluble borates. Borates are used for softening water, as an ingredient in laundry powders, and in the glass industry. In laboratory practice, borates are used in the preparation of buffer systems and as fluxes. Lead metaborates Pb(BO₂)₂ are used in the production of radiation protection screens.
随便看	boris eikhenbaum boris emmanuilovich khaikin borisenko, vasilii borisenko, vasilii vasilevich boris evdokimovich shcherbina boris evgenevich paton boris evgenevich raikov boris evgenevich vedeneev boris evgen'evich zakhava boris evgenevich zakhava boris evgenyevich zakhava boris evgen´evich zakhava borisevich, nikolai borisevich, nikolai aleksandrovich boris evseevich bykhovskii boris evseevich chertok boris evstafevich butoma boris farmakovskii boris fedorovich boris fedorovich andreev boris fedorovich bratchenko boris fedorovich dobrynin boris fedorovich godunov boris fedorovich ilin boris fedorovich lomov