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Tardis
Acid
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DW Frontios acid

Acid from an acid jar burns through some metal flooring. (TV: Frontios [+]Christopher H. Bidmead, Doctor Who season 21 (BBC1, 1984).)

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: The Keys of Marinus [+]Terry Nation, Doctor Who season 1 (BBC tv and BBC1, 1964).) 16 Alpha Leonis One (PROSE: Eternity Weeps [+]Jim Mortimore, Virgin New Adventures (Virgin Books, 1997).) and Endpoint were all composed of acid. (PROSE: Hope [+]Mark Clapham, BBC Eighth Doctor Adventures (BBC Books, 2002).) The planet Vortis also had pools of acid on its surface. (TV: The Web Planet [+]Bill Strutton, Doctor Who season 2 (BBC1, 1965).) Skaro had a river of acid, where the Dalek Emperor attempted to kill Zeg, (COMIC: Duel of the Daleks [+]unclear authorship, The Daleks comics (City Magazines, 1965).) and a Sea of Acid on the continent of Darren. (PROSE: Dalek: The Astounding Untold History of the Greatest Enemies of the Universe [+]George Mann, Justin Richards and Cavan Scott, Dalek: The Astounding Untold History of the Greatest Enemies of the Universe (Ebury Publishing, 2017).) Lake Mono on the Gyre was composed of acid, where the humans put criminals to death by immersing them in it. (PROSE: Night of the Humans [+]David Llewellyn, BBC New Series Adventures (BBC Books, 2010).)

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: Four Doctors [+]Paul Cornell, Titan summer events (Titan Comics, 2015).)

On Drago 14, the beaches were roamed by acid-spitting land squids. A shop in the town sold acid-proof towels. (PROSE: Honeymoon Horrors [+]David Llewellyn, The Brilliant Book 2012 fiction (BBC Books, 2011).)

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: The Monsters from Earth [+]The Dr Who Annual 1966 (Doctor Who annual, 1965).)

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: The Hand of Fear [+]Bob Baker and Dave Martin, Doctor Who season 14 (BBC1, 1976).) 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: Eldrad Must Die! [+]Marc Platt, Main Range (Big Finish Productions, 2013).)

The calcium-based bodies of Raxacoricofallapatorians were vulnerable to acetic acid. (TV: World War Three [+]Russell T Davies, Doctor Who series 1 (BBC One, 2005).) On Raxacoricofallapatorius, criminals were executed by being dissolved in a vat of acetic acid while still alive. (TV: Boom Town [+]Russell T Davies, Doctor Who series 1 (BBC One, 2005).)

The Second Doctor defeated the Krotons by using sulphuric acid against them. (TV: The Krotons [+]Robert Holmes, Doctor Who season 6 (BBC1, 1968-1969).)

The Second Doctor once used a bottle of acid to drive off a panther that was threatening him. (COMIC: The Monsters from the Past [+]Roger Noel Cook, TVC comic stories (1967).)

On Jaconda, the Sixth Doctor destroyed Mestor's body with Mosten acid. (TV: The Twin Dilemma [+]Anthony Steven, Doctor Who season 21 (BBC1, 1984).)

On Earth, coronic acid was used against the Sontarans Stike and Varl. (TV: The Two Doctors [+]Robert Holmes, Doctor Who season 22 (BBC1, 1985).)

Cassandra O'Brien's surgeons used moisturisers filled with acid to defend her. (TV: The End of the World [+]Russell T Davies, Doctor Who series 1 (BBC One, 2005).)

Strax once eagerly suggested using projectile acid against Walter Simeon. (TV: The Snowmen [+]Steven Moffat, Doctor Who Christmas Special 2012 (BBC One, 2012).)

Other uses[]

Acid was used in acid jars, a power source reliant upon wind to produce usable energy. (TV: Frontios [+]Christopher H. Bidmead, Doctor Who season 21 (BBC1, 1984).)

The humans of Varos used acid as a method of body disposal. The Sixth Doctor escaped from being dissolved in an acid bath. (TV: Vengeance on Varos [+]Philip Martin, Doctor Who season 22 (BBC1, 1985).)

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: Size Control [+]TVC comic stories (1974).)

Other information[]

Acid was one of the few things which could prevent a Time Lord from regenerating. (PROSE: Night of the Humans [+]David Llewellyn, BBC New Series Adventures (BBC Books, 2010).)

Diplosians were allergic to citric acid. (TV: The Stones of Blood [+]David Fisher, Doctor Who season 16 (BBC1, 1978).)

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: The Rebel Flesh [+]Matthew Graham, Doctor Who series 6 (BBC One, 2011).)

Strax, another Sontaran, expressed a fondness for warfare that involved acid. (TV: The Crimson Horror [+]Mark Gatiss, Doctor Who series 7 (BBC One, 2013)., Deep Breath [+]Steven Moffat, Doctor Who series 8 (BBC One, 2014).)

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