Telluric acid

<p>Telluric acid, or more accurately <a href="/facts/Ortho_acid/WTHfe0K7">orthotelluric</a> acid, is a <a href="/facts/Chemical_compound/37FXqqtv">chemical compound</a> with the <a href="/facts/Chemical_formula/hghUtthl">formula</a> Te(OH)6, often written as H6TeO6. It is a white crystalline solid made up of octahedral Te(OH)6 molecules which persist in aqueous solution. In the solid state, there are two forms, rhombohedral and monoclinic, and both contain octahedral Te(OH)6 molecules, containing one hexavalent <a href="/facts/Tellurium/v7QvfIvS">tellurium</a> (Te) atom in the +6 oxidation state, attached to six <a href="/facts/Hydroxyl/1Hs2QAEv">hydroxyl</a> (–OH) groups, thus, it can be called tellurium(VI) hydroxide. 
Telluric acid is a <a href="/facts/Weak_acid/vJ4rj6Lu">weak acid</a> which is <a href="/facts/Polyprotic_acid/FySU18n1">dibasic</a>, forming <a href="/facts/Tellurate/jnAvMCss">tellurate</a> <a href="/facts/Salt_(chemistry)/lsSKwGpn">salts</a> with <a href="/facts/Strong_base/M9wA7qeM">strong bases</a> and hydrogen tellurate salts with weaker bases or upon hydrolysis of tellurates in water. It is used as tellurium-source in the synthesis of oxidation catalysts.
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Telluric acid open-in-new

Telluric acid