Limits RegistryPUBLIC RECORD
Limits RegistryDicyanoacetylene (carbon subnitride, C4N2) burning in oxygen produces a blue-white flame of about 5,260 K (4,990 °C), the hottest flame of any known fuel–oxygen mixture, as reported by Kirshenbaum and Grosse in 1956. Burned with ozone at high pressure it can exceed 6,000 K; its products contain no hydrogen, so no energy is lost forming water.
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Dicyanoacetylene (carbon subnitride, C4N2) burning in oxygen produces a blue-white flame of about 5,260 K (4,990 °C), the hottest flame of any known fuel–oxygen mixture, as reported by Kirshenbaum and Grosse in 1956. Burned with ozone at high pressure it can exceed 6,000 K; its products contain no hydrogen, so no energy is lost forming water.
The highest flame temperature produced by burning any known chemical fuel with oxygen at atmospheric pressure.
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Limits Registry. LR-HOTTEST-CHEMICAL-FLAME. Hottest flame from a chemical reaction. 2026.