Acid

Acid was a type of chemical compound that was caustic in nature.
== Natural occurrences ==
Acid, sometimes in large bodies, could be found on many planets. The seas of Marinus, (TV: ) 16 Alpha Leonis One (PROSE: ) and Endpoint were all composed of acid. (PROSE: ) The planet Vortis also had pools of acid on its surface. (TV: ) Skaro had a river of acid, where the Dalek Emperor attempted to kill Zeg, (COMIC: ) and a Sea of Acid on the continent of Darren. (PROSE: ) Lake Mono on the Gyre was composed of acid, where the humans put criminals to death by immersing them in it. (PROSE: )
During the Last Great Time War, the once varied ecosystems of Marinus had been reduced to merely the acidic deserts and seas. When the Voord retreated to a pocket universe, their city remained surrounded by the acidic sea. (COMIC: )
On Drago 14, the beaches were roamed by acid-spitting land squids. A shop in the town sold acid-proof towels. (PROSE: )
== Uses ==
=== Offensive purposes ===
Some species used acid as a method of killing. This could include regular weaponry or an impromptu defence.
The First Doctor used a syringe of prussic acid to kill a Zilgan on the Sense Sphere. (PROSE: )
Eldrad developed an acid that neutralised the molecular bond in silicon-based lifeforms. When he returned to Kastria after his execution, Eldrad triggered a booby trap that fired a missile containing the acid upon him. Knowing there to be no antidote, he was forced to use the regenerator chamber. (TV: ) An Eldrad known as "the Watcher", who had been restored from the original's eye, was killed with an acid filled dart by the Eldrad who was restored from the original's hand. In turn, this Eldrad was killed with the same dart by Mulkris. (AUDIO: )
The calcium-based bodies of Raxacoricofallapatorians were vulnerable to acetic acid. (TV: ) On Raxacoricofallapatorius, criminals were executed by being dissolved in a vat of acetic acid while still alive. (TV: )
The Second Doctor defeated the Krotons by using sulphuric acid against them. (TV: )
The Second Doctor once used a bottle of acid to drive off a panther that was threatening him. (COMIC: )
On Jaconda, the Sixth Doctor destroyed Mestor's body with Mosten acid. (TV: )
On Earth, coronic acid was used against the Sontarans Stike and Varl. (TV: )
Cassandra O'Brien's surgeons used moisturisers filled with acid to defend her. (TV: )
Strax once eagerly suggested using projectile acid against Walter Simeon. (TV: )
=== Other uses ===
Acid was used in acid jars, a power source reliant upon wind to produce usable energy. (TV: )
The humans of Varos used acid as a method of body disposal. The Sixth Doctor escaped from being dissolved in an acid bath. (TV: )
The Mantis leader, in his attempts to learn the nature of the Doctor's TARDIS, had it submerged in a beaker of acid in his ship's lab. The acid had little effect on the TARDIS. (COMIC: )
== Other information ==
Acid was one of the few things which could prevent a Time Lord from regenerating. (PROSE: )
Diplosians were allergic to citric acid. (TV: )
In the 22nd century, an acid factory was located at St John's Monastery. To protect themselves from its effects, the miners wore acid suits. (TV: )
Strax, another Sontaran, expressed a fondness for warfare that involved acid. (TV: , )
Category:Acids
Category:Substances from the real world