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Dinitrogen tetroxide
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<p>Dinitrogen tetroxide, commonly referred to as nitrogen tetroxide (NTO), and occasionally (usually among ex-USSR/Russian rocket engineers) as amyl, is the <a href="/facts/Chemical_compound/37FXqqtv">chemical compound</a> N2O4. It is a useful <a href="/facts/Reagent/c3GLInCu">reagent</a> in chemical synthesis. It forms an <a href="/facts/Chemical_equilibrium/y8ToYXHp">equilibrium mixture</a> with <a href="/facts/Nitrogen_dioxide/FoLvApPI">nitrogen dioxide</a>. Its molar mass is 92.011 g/mol. </p><p>Dinitrogen tetroxide is a powerful <a href="/facts/Oxidizer/1FQzB8pQ">oxidizer</a> that is <a href="/facts/Hypergolic/p0Goa3rn">hypergolic</a> (spontaneously reacts) upon contact with various forms of <a href="/facts/Hydrazine/G7P5ITzU">hydrazine</a>, which has made the pair a common <a href="/facts/Bipropellant/s0KadvqW">bipropellant</a> for rockets. </p>