Boric acid ester

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Structure of boric acid esters

Boric acid esters are esters of boric acid that are formed, for example, by the reaction of boric acid with alcohols with the elimination of water . The boric acid esters formed can be purified by distillation.

An example of this is the production of boric acid trimethyl ester (trimethyl borate), which is sometimes referred to synonymously as boric acid ester , from boric acid and methanol .

use

Boric acid esters are u. a. Used as a component in brake fluids , as fragrances and in school trials to detect methanol. They also serve (especially cyclic boric acid esters) as microbicides , fungicides and insecticides .

Fabric examples

Individual evidence

  1. Green flames (formation of boric acid methyl ester) (PDF; 9 kB).
  2. ^ Bert Breuer, Karlheinz H. Bill; Brake manual: Basics, components, systems, driving dynamics; ISBN 978-3-83480064-0 .
  3. Brake fluid specification ( Memento of the original from June 8, 2009 in the Internet Archive ) Info: The archive link was automatically inserted and not yet checked. Please check the original and archive link according to the instructions and then remove this notice. @1@ 2Template: Webachiv / IABot / www.biat.uni-flensburg.de
  4. Boric acid esters and their use as fragrances (Patent-de)
  5. Colorful alcohol flames with boric acid esters (Prof. Blum's educational server)
  6. W. Kliegel; Boron in biology, medicine and pharmacy. Physiological effect and application of boron compounds; ISBN 978-3-540-93411-0 .