Tetrahydroxyborate

<p>Tetrahydroxyborate is an <a href="/facts/Inorganic_chemistry/ErD6ypnb">inorganic</a> <a href="/facts/Ion/3bePpDna">anion</a> with the <a href="/facts/Chemical_formula/hghUtthl">chemical formula</a> [BH4O4]− or [B(OH)4]−. It contributes no colour to tetrahydroxyborate salts. It is found in the mineral <a href="/facts/Hexahydroborite/YwFFYBLC">hexahydroborite</a>, Ca(B(OH)4)2 · 2 <a href="/facts/Water_of_crystallization/sbaKJNJX">H2O</a>, originally formulated CaB2O4 · 6 <a href="/facts/Water_of_crystallization/sbaKJNJX">H2O</a>.  It is one of the <a href="/facts/Boron/Pmwgd7Mf">boron</a> <a href="/facts/Oxyanion/0GuWXr6D">oxoanions</a>, and acts as a <a href="/facts/Weak_base/FL4HstLK">weak base</a>. The <a href="/facts/Systematic_name/WuY5Lzy8">systematic names</a> are tetrahydroxyboranuide (substitutive) and tetrahydroxidoborate(1−) (additive). It can be viewed as the <a href="/facts/Conjugate_base/hohgQ07M">conjugate base</a> of <a href="/facts/Boric_acid/0so68XIK">boric acid</a>.
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Tetrahydroxyborate open-in-new

Tetrahydroxyborate