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Ruthenium(IV) oxide
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<p>Ruthenium(IV) oxide is the <a href="/facts/Inorganic_compound/TfFfzxSz">inorganic compound</a> with the formula <a href="/facts/Ruthenium/uzCm4ufn">Ru</a><a href="/facts/Oxygen/acyn6o8r">O2</a>. This black solid is the most common oxide of <a href="/facts/Ruthenium/uzCm4ufn">ruthenium</a>. It is widely used as an <a href="/facts/Electrocatalyst/UXwuCNNg">electrocatalyst</a> for producing chlorine, chlorine oxides, and O2. Like many dioxides, RuO2 adopts the <a href="/facts/Rutile/qwJH5ElN">rutile</a> structure. </p>