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Wise and Powerful Captain "Retsu Unohana"


Retsu Unohana

 
Retsu Unohana
Unohana Ep206a.png
RaceShinigami
BirthdayApril 21[1]
GenderFemale
Height159 cm (5'2½")[1]
Weight45 kg (99 lbs)[1]
Professional Status
AffiliationGotei 13Soul Society
OccupationCaptain of the 4th Division
Team4.jpeg 4th Division
PartnerIsane Kotetsu
Previous PartnerSeinosuke Yamada
Base of Operations4th Division HQ, SeireiteiSoul Society
Personal Status
RelativesN/A
Zanpakutō
ShikaiMinazuki
BankaiUnknown
First Appearance
Manga DebutVolume 10, Chapter 81
Anime DebutEpisode 24
Video Game DebutBleach: The 3rd Phantom
Voices
Japanese VoiceAya Hisakawa
English VoiceKate Higgins
Spanish VoiceIrina Indigo (Latin America)
"Genuine elegance." - Tite Kubo[1]
Retsu Unohana (卯ノ花 烈, Unohana Retsu) is the captain of the Fourth Division in the Gotei 13. She is one of the oldest and most experienced captains, and is the Soul Society's best healer. Her lieutenant is Isane Kotetsu.
AppearanceEdit
Unohana has the appearance of a slender and very youthful woman with blue eyes and black hair. She wears the standard Shinigami captain uniform apart from using an obi instead of the normal sash. Her hair is long and is always worn as a large braid in front. Over 100 years ago, she did not have the large braid, instead styling in front of her as a loose ponytail.
Unlike most Shinigami who carries their Zanpakutō in their sash, Unohana has a large string attached to the sheath of her Zanpakutō and carries it over her shoulder, or has her lieutenant Isane Kotetsu carry it for her, whenever they are together on the battlefield.[2]

PersonalityEdit

Unohana has a gentle and warm personality that augments her appearance. Unohana is a soft-spoken, polite, and caring woman who uses honorifics when addressing everyone, including her subordinates and the enemy. She rarely shows any signs of panic or distress, and has a great sense of duty, shown in the times that she ordersHanatarō Yamada’s imprisonment and Isane Kotetsu’s chasing of Renji Abarai when he runs away with Rukia Kuchiki. Despite her sense of duty, she will also heal almost anybody around her, including Renji after he was defeated by his captain, Gantenbainne Mosqueda when she arrived in Hueco Mundo, and the Visored, referring to them as allies despite Shinji's reluctance to do so. With her grace and kind manners, she lets others know quietly that while she may be soft, she is not to be taken lightly. Despite her gentle nature, several members of the Eleventh Division[3] and even her fellow Captains fear her.[4]
Unohana likes strong flavored food, preferring it to bland tasting dishes. In her free time, she climbs mountains throughout Rukongai, during these excursions, she collects medicinal herbs. Once a month, she holds an ikebanaclass for the members of her division.[5] Unohana is also the President of the Ikebana Club (Flower Arranging Society.)

HistoryEdit

Unohana surprises Ukitake and Kyōraku with her presence.
Although not much is revealed about her past, it is said that she has been a captain for at least 200 years; along with fellow captains Genryūsai Shigekuni YamamotoJūshirō Ukitake and Shunsui Kyōraku. It is stated that the four of them have been Captains of the Gotei 13 for at least 200 years as of 110 years ago before the current time. This makes her one of the oldest captains among the Gotei 13, despite her rather youthful appearance. Ukitake also refers to her as "Senpai" denoting her seniority to both him and Shunsui.[4]
Unohana receives orders she disagrees with.
Approximately 110 years ago Unohana was present for a promotion ceremony, that took place at the 1st Division Headquarters, along with the rest of the assembled captains. She witnessed the arrival of the newly appointed Captain of the 12th DivisionKisuke Urahara. Her lieutenant at this time was Seinosuke Yamada.[6]
9 years later, Unohana was present at a emergency meeting called by Captain-Commander Yamamoto where he decided to create a investigation team to locate the missing 9th Division squad members. When he gave out orders, Yamamoto ordered Unohana to prepare the relief stations for casualties, but Unohana interrupted him and asked if it wouldn't be better for her to tend to the wounded there. Yamamoto plainly told her that he couldn't send healers out without knowing what the situation was like.[7]

PlotEdit

Soul Society arcEdit

Unohana scolds Hanatarō.
Retsu Unohana first appears during the captain's emergency meeting called by General Yamamoto. However she says nothing at this time, and remains silent throughout the constant bickering between her fellow officers. She is next seen after Sōsuke Aizen's apparent death, in which she confirms toSajin Komamura and Kaname Tōsen that he is truly dead.[8] She later appears shortly afterwards when Hanatarō Yamada is "caught" by Jūshirō Ukitake and brought before Unohana for judgement. Despite the reasons put forth by Ukitake, she determines that Hanatarō must be imprisoned on account of the fact that he is a seated officer in her division and may have incidentally aided in the harm that theRyoka had supposedly done within the Seireitei.[9]
Unohana explains why Yamamoto lied to Rukia.
As head of the medical relief division, Retsu Unohana’s healing prowess is legendary. This is first shown when she manages to heal Renji Abarai after his defeat at the hands of Byakuya Kuchiki. She manages to save Renji from certain death, while also delaying her arrival at the Sōkyoku Stand for Rukia Kuchiki’s execution.[10] While attending the execution, Isane Kotetsuexpresses open regret that Yamamoto lied to Rukia regarding the release of the Ryoka, but Unohana explain to her lieutenant that despite the harshness of such a lie, it also allows Rukia to die peacefully with the idea that her friends' lives would be spared.[11]
Unohana treating her lieutenant.
After Ichigo Kurosaki arrives on the scene and destroys the Sōkyoku stand,Suì-Fēng orders all lieutenants to follow after the fleeing Renji and Rukia. As Isane looks concerned at Unohana about the order, she calmly tells her to go, only to see her get beaten.[12] Amidst the chaotic scenes, Ichigo starts his battle with Byakuya Kuchiki, the respective captains then head off to their own battles. Unohana releases Minazuki, even though the actual process is not shown, and saves all those hurt during the initial battle. She keeps Isane with her on top of Minazuki while her Zanpakutō heals the rest of her patients inside of its stomach. Arriving at the Relief Station, Unohana asks Minazuki to release everyone, and seals it back while calling for her subordinates to tend to the injured personnel for the time being. She then asks Isane to follow her to the Central 46 Chambers.[13]
Aizen and Ichimaru escape Unohana and Isane.
They arrive at the scene in time to see Aizen defeat Tōshirō Hitsugaya. Captain Unohana announces her presence to the traitors while citing her own suspicions surrounding Aizen's staged death. She also goes on to claim that the residence area in Central 46 Compound was the only place he could hide and mentions the use of an elaborate corpse doll on his part. Aizen then points out the mistakes in her analysis, while also commending her for seeing through his deception. The first was that he was not here to hide, and the second was immediately shown as he releases his Zanpakutō in front of Unohana and explains Kyōka Suigetsu's Complete Hypnosis. He then proceeds to tell Unohana about the third member of his group, Kaname Tōsen. He and Gin Ichimaru then teleport to Sōkyoku Hill, leaving them behind.[14] Unohana immediately requests Isane to find out his exact location, while informing everyone of Aizen’s betrayal, including the Ryoka. She then takes steps to save Hitsugaya and Momo Hinamori, both of whom were fatally injured by Aizen before her arrival.[15]
Unohana arrives at Sōgyoku Hill after Aizen's defection.
After ensuring that both would escape death for the moment, she leaves them in the care of Isane and travels via Minazuki to the Sōkyoku stand, where she tells Yasochika Iemura, the 3rd Seat of her division, that the Ryoka do not require help. She then settles down beside Byakuya Kuchiki and gently scolds him, saying that he has pushed himself too hard. She then calls Rukia over upon Byakuya’s request, during which he reveals his reason for allowing her execution.[16]
A week after Aizen's insurgency, Unohana stops two 11th Division members from creating a ruckus at the 4th Division’s Relief Station, and unsuccessfully tries to convince Hitsugaya to speak to an unconscious Momo, who is still recovering from her injuries.[17]

Bount arc (anime only)Edit

Note: Events occurring in this arc are only in the anime and do not constitute canon material.
Unohana examines Shinigami being controlled by Ritz.
Unohana is present for a captain's meeting called by Captain-Commander Yamamoto to discuss the Bount invasion, wherein he tells the captains to kill the Bounts on sight.[18] When the Bounts infiltrate Seireitei, Mabashiuses Ritz to possess Shinigami in order to create infighting. Many who were possessed were brought to the 4th Division's infirmary to be healed. However, as she doesn't know how to remove the implanted doll, she orders all those possessed to be restrained and the puppetmaster captured. When Mabashi is killed by Suì-Fēng, all of the possessed Shinigami return to normal. Unohana expresses relief that someone defeated the puppetmaster.[19]

Hueco Mundo arcEdit

Unohana and Kotetsu surprising the Exequias by their appearance
Unohana and Isane appeared alongside Captains Kenpachi ZarakiMayuri Kurotsuchi, and Byakuya Kuchiki in Las Noches after the titanic battle between Ichigo and Grimmjow Jaegerjaquez. Her initial appearance effectively stops the approaching Exequias from doing further harm toYasutora Sado, in which the leader of the group calmly orders a retreat.[20]She then stops Isane from pursuing them, claiming that they are only there to heal the injured, not start more fights.[21]
She proceeds to heal Chad and Gantenbainne Mosqueda, and orders Isane to go the location of Byakuya Kuchiki as she feels something is wrong with Hanatarō, who was originally sent with Byakuya.[22]

Fake Karakura Town arcEdit

Unohana appears alongside Mayuri Kurotsuchi after the latter announces that he can get Ichigo Kurosaki back to Karakura Town through a Garganta. She offers to accompany Ichigo back to Karakura Town, claiming to have faith in Mayuri's abilities, but not without adding a remark of how if he fails, Urahara will be disappointed, obviously irritating him. Before leaving with Ichigo, she orders Isane to remain behind and assist their remaining forces in Las Noches.[23]
Unohana dives into the Garganta.
When Mayuri and Nemu open up the Garganta, Ichigo and Unohana jump in and head towards Karakura Town. As they are travelling, she asks Ichigo about his fight with Aizen, when learning that Aizen defeated him without using Shikai, Unohana is somewhat relieved. She then informs him that he is the only one who can stand up to Sōsuke Aizen because he has not seen his Shikai. She tells Ichigo that his advantage is that not only does he have captain-class reiatsu, but also that he hasn't seen Aizen's Shikai. She finally warns him not to witness Aizen's Shikai, stating that once he does, the war would be over.[24] Ichigo thanks her and tells her that he will defeat Aizen.
Unohana strengthens the path.
As they make their way back to the living world, Unohana notices that Ichigo is making a path that is weak and brittle and asks that she be allowed to take the lead. Ichigo protests, saying it's unnecessary until she asks again even more politely, scaring Ichigo into submitting to her will. Once Unohana is in front of Ichigo, he comments on how she can make such a clean and sturdy path with captain-class reiatsu, making note of the difference between them. Unohana asks him what he is referring to, stating that his reiatsu isn't so different from her and as his wounds are healed, it is possibly because his reiatsu is too rough and thus unsuited for the particular task. Ichigo objects, stating that if his reiatsu was at full strength, he would be able to do better. Unohana doesn't believe his reasoning until Ichigo explains that the condition of his Bankai's shihakusho is able to give a clear example of how much reiryoku he has left. Orihime had already healed him, but told him that it would take longer to replenish his Reiryoku, and since he went to help Rukia and the others, his reiatsu never did get fully replenished.
Unohana offers to restore Ichigo's Reiatsu.
He then points to his sleeve that he has left and says this is how much reiatsu he currently has at the moment. Unohana then thinks to herself that it is impossible, as there is not even half of his shihakusho left, causing her to wonder if his reiatsu is only at half. Unohana then realizes that she must have mistakenly thought that Ichigo's reiatsu is at full strength because it was comparable to a captain's. She then asks Ichigo to run in front while she restores his reiatsu to full strength as they travel. Ichigo questions if she is capable of doing that while they are running to which Unohana answers by explaining how healing Kidō works and that restoring the Reiatsu once a body has physically healed is an easy task. Unohana then acknowledges to herself that if Ichigo's reiatsu is only at half strength, then he may just be the trump card they need to defeat Aizen.[25]
Shinji thanks Unohana.
She later makes it back to the living world and goes to where Hachigen and Hiyori are.[26] Unohana finishes healing Hiyori and tells the Visored that she should be alright for the time being. Lisa asks if that means that she might not survive, to which Unohana explains that healing through Kidō is no different from medicine. Unohana notes that she has finished fixing her physical structure. So as long as Hiyori doesn't give up on living, she will eventually wake up. Whether or not she gives up, is something she thinksShinji would know better than her. As she begins to walk away Shinji tells her that he owes her one. Unohana stops and asks him why does he thank her, as she doesn't require thanks for saving the lives of her "allies". Shinji responds that he never said they were her allies as the Visored look on in surprise making him question what Hiyori would say in the situation. He simply says again that he owes her one.[27]

Zanpakutō Unknown Tales arc (anime only)Edit

Note: Events occurring in this arc are only in the anime and do not constitute canon material.
Unohana looks over the injured Sasakibe.
Unohana is summoned together with all of the captains and lieutenants toSōkyoku Hill as Muramasa and the other manifested Zanpakutō spirits appear before their former masters, declaring their rebellion. She orders Isane to treat Chōjirō Sasakibe after he is injured by the Zanpakutō spirits.[28] After that night, Unohana leads her division in healing those who were wounded in the battle the night before, including Komamura. [29]
Unohana tells Kurotsuchi she has an antidote for his Bankai's poison.
She and her lieutenant are later visited by Nemu with a request by Mayuri Kurotsuchi that Unohana come to the 12th Division barracks to determine the cause of the Zanpakutō's rebellion. Afterward, she, Jūshirō Ukitake and Shunsui Kyōraku use the 4th Division barracks to plan their strategies. When both Ichigo and Renji appear before the three captains, announcing that they have both subdued their Zanpakutō, they realize that the only way to restore control over them is to defeat them in battle.[30]
After the Zanpakutō spirits attacked the 6th Division headquarters, Unohana appeared with the 4th division to heal all injured parties. Though she gets into a small rivalry with Captain Mayuri Kurotsuchi over the fact that she analyzed and developed a cure to his Bankai's poison. She is there to greet Suì-Fēng and Yoruichi when the latter tells all in attendance that she has discovered the whereabouts of Captain-Commander Yamamoto.[31]

Beast Swords arc (anime only)Edit

Note: Events occurring in this arc are only in the anime and do not constitute canon material.
Unohana carries on working advising them to track the Tōjū.
After all the chaos involving Muramasa settles down, she along with CaptainsJūshirō Ukitake and Shunsui Kyōraku take charge of rebuilding Seireitei. She still is directing the healing of all those were injured from Muramasa's Zanpakutō rebellion. Soon after, she is made aware of the Tōjū phenomenon from reports similar to what happened to Rukia Kuchiki. While the rebuilding continues and the Tōjū is being dealt with, Nanao Ise and Isane Kotetsunotice several items from the 4th Division barracks go missing. Hanatarō Yamada also reports that several of the chickens he was raising have vanished as well. They notice that the thief left tracks leading to the underground waterways. Suspecting it to be the work of a Tōjū and seeing Captains Unohana and Kyōraku send Nanao and Hanatarō, along with Ikkaku Madarame and his Zanpakutō Hōzukimaru, to investigate the underground waterways (while secretly keeping an eye on them from the Research Department with Akon).
Unohana's office is still overcrowded during the report.
The group makes it back to the surface to report a Tōjū's death. They also mention that Hisagomaru had been the one stealing the items from the 4th Division. According to them, Hisagomaru explained that he had been manifested by Muramasa at the start of the rebellion, but had no grudge against his master. Despite all he tried, Hisagomaru was unable to return to his bladed form. Driven by despair, he hid in the sewers, secretly salvaging items to help him cope in his new surroundings, including Hanatarō's chickens. Kyōraku asks where Hisagomaru is right now, only for the setting to change back to the manifested Zanpakutō, who had gotten lost yet again.[32] Unohana is also seen withMinazuki, along with a number of other officers of the Gotei 13 and their Zanpakutō, as they confront bothZabimaru and Senbonzakura when they accidentally destroy the buildings of the Shinigami Research and Development Institute. [33]

Gotei 13 Invading Army arc (anime only)Edit

Note: Events occurring in this arc are only in the anime and do not constitute canon material.
Unohana is present for a captain's meeting called by Yamamoto regarding disappearances in the Dangai. She listens to Mayuri's report that there is a time gap in the Dangai, which is expanding and may stop their ability to intervene in the Human World. Unohana asks him if there is a way to stop it, to which Mayuri replies that it can be fixed immediately, but he requests that a study be conducted to identify the cause.[34] Unohana and Isane walk towards the Senkaimon and Isane says she felt a slight variation in reiatsu. Unohana tells her to stop then and says they need more time.[35] As the reigai army meets, Unohana walks out on the streets of Seireitei, conversing with division members.[36] When Kyōraku is locked up and Ukitake tries to plead with Central 46 to try and get him released, Unohana advises him not to blame them too harshly given that, as they see it, all the evidence is there and points to Kyōraku's guilt.[37]
Unohana and Isane in the S.R.D.I.
Unohana goes to the Shinigami Research and Development Institute with Isane, who concludes some of the data had been tampered with, possibly by Kyōraku while Unohana disagrees. She informs Isane that she has traveled to the Daireishokairō in regards to this matter and found that the man responsible is no ordinary Shinigami. Kagerōza Inaba appears then and applauds Unohana on figuring out so much but she will have to wait to find out his motives as they will become clear soon enough.[38] When the other captains succeed in getting through the Dangai, Isane attacks Inaba, who escapes only to be followed by the pair to an underground storage facility. Unohana observes Inaba's short sightedness as Kenpachi defeats his Reigai but Inaba accuses her of the same. Unohana is initially confused until Isane lifts her sword towards her, revealing herself as a Reigai all along who had gotten some samples of Unohana for Inaba allowing him to create her own Reigai counterpart. Unohana's replacement reveals itself, staring at her as Inaba asks what she is going to do now.[39]
Unohana stops Yamamoto from fighting any further.
Unohana suddenly unleashes Bakudō #62. Hyapporankan on her counterpart, sending pillars hurtling towards her. Reigai-Unohana destroys her attack by using Bakudō #63.Sajo Sabaku. The Reigai then utilizes Hadō #88. Hiryūgekizokushintenraihō, which surprises those around as it is done without incantation, however Unohana blocks it with the use of Bakudō #81. Dankū. Unohana escapes the area while the others are distracted by the smoke of the attack.[40] She later finds Yamamoto battle-worn from fighting the Reigai of Kyōraku, Ukitake and Unohana, helping him in a retreat and later treats his wounds. While regrouping, Renji arrives to report the situation, much to Unohana and Yamamoto's dismay.[41]
Unohana informs Renji and Rukia of Yamamoto's status.
Later, Unohana follows Yamamoto to the Human World to aid their allies. Unohana then finds her Reigai-counterpart and confines her with a "Sajō Sabaku". She watches on as Yamamoto faces the enemies.[42] After the battle, Unohana takes Yamamoto to their temporary base and treats his wounds. She tells Renji and Rukia that while he is stable, Yamamoto will not be able to join the battle for a while. Renji initially insists they attack now while Inaba is injured, but Unohana strongly voices against such reckless action.[43]

The Lost Substitute Shinigami arcEdit

When Kisuke Urahara explains about his intentions to restore Ichigo's power in front of the Gotei 13, Yamamoto tells him to bring him the sword which will allow Urahara to do so. Unohana asks if he intends to agree to Urahara's plan and he replies that they were saved by Ichigo and thus it is their turn to save him, no matter the means. He then orders the captains and lieutenants to give their reiatsu to the sword.[44]

Powers & AbilitiesEdit

Unohana's Battle Data, clockwise. Top: Offense (100), Top Right: Defense (80), Bottom right: Mobility (70), Bottom: Kidō/Reiatsu (100), Bottom Left: Intelligence (100), Top Left: Physical Strength (90). Total: 540/600.[45]
Master Healer: Unohana is by far the most knowledgeable on health related matters in all of Soul Society. She is known to be highly proficient in conventional healing techniques as well as herbal healing. Her knowledge of anatomy is high enough that upon examination of Aizen's "dead body", she concluded it was not Aizen or even real.[46] She also seems to be able to heal more than just Shinigami, evident when she heals Yasutora Sado, a Human, and Gantenbainne Mosqueda, an Arrancar.[47]
Kidō Master: As one of the oldest and most experienced captains, Unohana has advanced knowledge of kidō and the flow of spiritual energy. Her knowledge and mastery of healing Kidō are unrivaled within Soul Society. Unohana is well-versed in a variety of Kidō, able to easily use high-level Hadō and Bakudō spells without incantation.[48]
Immense Spiritual Power: As one of the oldest Captains in the Gotei 13, Unohana has tremendous spiritual power.
Master Swordsmanship Specialist: Although she has never been seen in battle, it is known that her personal speciality is sword fighting, including her particular mastery in the kendō style of fighting.[1]
Shunpo Expert: Unohana is proficient enough in this skill to be of the average level of speed possessed by a captain.
Keen Intellect: Along with her general skill of healing, she is able to detect the smallest details. This helps her in her mastery of healing. She can detect anomalies and problems lesser healers would not. She can tell by a simple look what type of medical attention if any is needed.[49] She also a powerful analyst with great attention to detail, able to quickly determine how to counteract any ailments in a person.[50] Her powers of perception were also able to deduce that Aizen's elaborate illusion of a corpse doll wasn't real, but even more so that Aizen was perpetuating a much larger scheme.[51] 

ZanpakutōEdit

Minazuki redirects here. For the manifested spirit that appears in the Zanpakutō Unknown Tales arc see Minazuki (spirit).
Minazuki (肉雫唼, "Purify the Flesh"): In sealed form, Minazuki is slightly longer than an ordinary katana, and resembles a nodachi The tsuba has an oval shape and the handle is red. Instead of tying it to her obi, Unohana carries her Zanpakutō over her shoulder by a rope strap or lets Isane carry it for her.
Retsu Unohana and her lieutenant Isane Kotetsu riding Minazuki in its Shikai state.
  • Shikai: Its release command is unknown. When released in Shikai form, Minazuki will start to morph, turning into a green like gas substance before taking a solid shape of a giant, green, one eyed Manta Ray like creature with the capability to fly. Minazuki can act as transportation and will change back into the green gas substance before returning to its sword form when its duty has been fulfilled.[52]
Shikai Special Ability: It is large enough to transport many people on its back (at least a dozen, based on its size when compared to those riding it). It seems to act on verbal orders and when landing it has the ability to somehow create a pair of bird like legs. Minazuki's main aspect is its ability to heal. When the wounded are placed within Minazuki's mouth, they are swallowed and stored inside its stomach. Minazuki's stomach acids are strong healing medicines and ointments which gradually soak over the wounded, curing their injuries. Currently it has shown to be able to carry at least five people within its stomach. When Unohana gives the word, Minazuki will regurgitate the people back out of its mouth.[53][1]

Appearances in Other MediaEdit

Retsu Unohana does not appear as a playable character in many of the Bleach video games, but is usually only seen and having minor roles. Oddly enough, Unohana is seen in Hanataro Yamada's super B and has a model inBleach: Shattered Blade with a one player and two player costume, yet she is not a playable character. Bleach: The 3rd Phantom, would be the first video game to feature Retsu Unohana as a playable character. However, she is a non-combatant character and uses various healing methods while in play, but can also use offensive Kidō such as Shakkahō. She is also seen in the movies Bleach: Memories of NobodyBleach: The DiamondDust Rebellion and Bleach: Fade To Black, usually attending to the victims of the damages caused by the event of the movie.

TriviaEdit

  • Unohana has a column in the Seireitei Communication titled 'Tis the Season and another column titled Every Nook And Cranny[54]. She also publishes recommendations for sweet shops.[55]

QuotesEdit

  • (To two 11th Division Shinigami) "While it is good to be energetic, please remain quiet inside the hospital. As long as you are still inside this building, your lives are in our hands. Please do not forget that."[56]
  • (To Shinji Hirako) "The act of saving a comrade in need should require no thanks."[57]

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~Laporan Titrasi Asam-Basa~

BAB I PENDAHULUAN 1.1   Latar Belakang Berbicara masalah reaksi asam-basa atau yang biasa juga disebut reaksi penetralan, maka tidak akan terlepas dari titrasi asam-basa. Perlu dipahami terlebih dahulu bahwa reaksi asam-basa atau reaksi penetralan dapat dilakukan dengan titrasi asam-basa. Adapun titrasi asam-basa ini terdiri dari titrasi asam kuat-basa kuat, titrasi asam kuat-basa lemah, titrasi basa lemah-asam kuat, dan titrasi asam lemah-basa lemah. Titrasi asam-basa ini ditentukan oleh titik ekuivalen (equivalent point) dengan menggunakan indikator asam-basa. Setelah mengetahui hal tersebut, perlu juga kita ketahui bahwa titrasi merupakan suatu metode untuk menentukan kadar suatu zat dengan menggunakan zat lain yang sudah dikethaui konsentrasinya. Titrasi biasanya dibedakan berdasarkan jenis reaksi yang terlibat di dalam proses titrasi, sebagai contoh bila melibatan reaksi asam basa maka disebut sebagai titrasi asam basa, titrasi redox untuk titrasi yang melibatkan reaksi