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==Petroleum coke==
==Petroleum coke==
Petroleum coke is a similar material obtained as a by-product of the "cracking" of [[petroleum]].
Petroleum coke is a similar material obtained as a by-product of the "cracking" of [[petroleum]].
<ref>http://goldbook.iupac.org/P04522.html</ref>
==References==
==References==
{{reflist}}
{{reflist}}