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Borate
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<p>A borate is any of a range of <a href="/facts/Boron/Pmwgd7Mf">boron</a> <a href="/facts/Oxyanion/0GuWXr6D">oxyanions</a>, <a href="/facts/Anion/wrbwhF3z">anions</a> containing <a href="/facts/Boron/Pmwgd7Mf">boron</a> and <a href="/facts/Oxygen/acyn6o8r">oxygen</a>, such as <a href="/facts/Orthoborate/t2QnnLA4">orthoborate</a> BO3−3, <a href="/facts/Metaborate/G6qWQW2N">metaborate</a> BO−2, or <a href="/facts/Tetraborate/5XwkBTv1">tetraborate</a> B4O2−7; or any <a href="/facts/Salt_(chemistry)/lsSKwGpn">salt</a> of such anions, such as <a href="/facts/Sodium_metaborate/pd8nob87">sodium metaborate</a>, Na+[BO2]− and <a href="/facts/Borax/IQrXRJ3N">borax</a> (Na+)2[B4O7]2−. The name also refers to <a href="/facts/Ester/FoUAIIw4">esters</a> of such anions, such as <a href="/facts/Trimethyl_borate/h15TFhEE">trimethyl borate</a> B(OCH3)3. </p>