Editing C-7 foaming explosive

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{{Status|Canon}}
{{Ratings}}
[[File:C-7 explosives.jpg|300px|thumb]]
{{Era|FS}}
'''C-7 foaming explosive''' is a highly explosive compound that is used in demolitions by [[United Nations Space Command|UNSC]] forces. It is comprised of various chemicals that react to a signal electrical current shock sent through a detonation switch. It is liquid in vacuum, but once contact with a hard surface and oxygen occurs, it becomes a foaming, semi-solid adhesive resin.<ref>'''[[Halo: First Strike]]''', ''page 284''</ref>
'''C-7 Foaming Spray''' is a highly explosive compound that is used in demolitions by [[UNSC]] forces. It is comprised of various chemicals that react to a signal electrical current shock sent through a detonation switch. It is liquid in vacuum, but once contact with a hard surface and oxygen occurs, it becomes a foaming, semi-solid adhesive resin.<ref>[[Halo: First Strike]] page 284</ref>


==Uses==
==Uses==
Its most notable use is when Corporal [[Locklear]] used it to destroy the [[Menachite Forerunner crystal]] (the reason why the Covenant were chasing them), leading to his death.<ref>'''[[Halo: First Strike]]'''</ref>
Its most notable use is when Corporal [[Locklear]] uses it to destroy the [[Forerunner Crystal]] (the reason why the Covenant were chasing them), leading to his death.<ref>[[Halo: First Strike]]</ref>


==Trivia==
==Trivia==
C-4 is short for "Composition 4", therefore it is likely that C-7 means "Composition 7." It is also likely that it is simply a codename based on the order in which it was developed, not an indicator of its explosive power.
*In the present, there is a very effective explosive called C-4, possibly a precursor of C-7.
*It is mentioned only once when [[Master Chief]] talked about his training as a [[Spartan]].
*The most likely reason C-7 was developed was so that the users would be able to simply spray it onto the surface.
*C-7 may be another reference to [[7]].
*In [[Halo: Fall of Reach|Halo: Fall of Reach]], Samuel-034 used C-7 to destroy an airlock while trying to capture a rebel leader.
*The properties of C-7 are more than likely similar to the yellow expanding foam used for insulation and sealing in construction.


==List of appearances==
==Sources==
*''[[Halo: The Fall of Reach]]'' {{1st}}
<references/>
*''[[Halo: First Strike]]''
*''[[Halo: Fall of Reach]]''
**''[[Halo: Fall of Reach - Invasion|Invasion]]''
*''[[Halo: Silent Storm]]''


==Sources==
{{UNSC Infantry Weapons}}
{{Ref/Sources}}


{{UNSC ordnance}}
[[Category:Human Weapons]]
[[Category:Explosives]]
[[Category:UNSC]]
[[Category:Weapons]]

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