Editing Flame (section)

===Highest temperature===
[[Dicyanoacetylene]], a compound of carbon and nitrogen with chemical formula C<sub>4</sub>N<sub>2</sub> burns in oxygen with a bright blue-white flame at a temperature of {{convert|5260|K|lk=in|C F}}, and at up to {{convert|6000|K|C F}} in [[ozone]].<ref>{{cite journal
 | last = Kirshenbaum
 | first = A. D.
 |author2=A. V. Grosse
 |date=May 1956
 | title = The Combustion of Carbon Subnitride, NC<sub>4</sub>N, and a Chemical Method for the Production of Continuous Temperatures in the Range of 5000–6000K
 | journal = Journal of the American Chemical Society
 | volume = 78
 | issue = 9
 | page = 2020
 | doi = 10.1021/ja01590a075
 }}</ref> This high flame temperature is partially due to the absence of hydrogen in the fuel (dicyanoacetylene is not a hydrocarbon) thus there is no water among the combustion products.

[[Cyanogen]], with the formula (CN)<sub>2</sub>, produces the second-hottest-known natural flame with a temperature of over {{convert|4525|C|F}} when it burns in oxygen.<ref>{{ cite journal |author1=Thomas, N. |author2=Gaydon, A. G. |author3=Brewer, L. | title = Cyanogen Flames and the Dissociation Energy of N<sub>2</sub> | journal = The Journal of Chemical Physics | year = 1952 | volume = 20 | issue = 3  | pages = 369–374 | doi = 10.1063/1.1700426 | bibcode = 1952JChPh..20..369T }}</ref><ref>{{ cite journal |author1=J. B. Conway |author2=R. H. Wilson Jr. |author3=A. V. Grosse |title=The Temperature of the Cyanogen-Oxygen Flame | journal = Journal of the American Chemical Society | year = 1953 | volume = 75 | issue = 2  | pages = 499 | doi = 10.1021/ja01098a517 }}</ref>