Arrhenius base
E562314
An Arrhenius base is a substance that increases the concentration of hydroxide ions (OH⁻) in aqueous solution, according to the Arrhenius theory of acids and bases.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Brønsted–Lowry base subclass
ⓘ
chemical concept ⓘ |
| afterDissociationForms | cations and hydroxide anions ⓘ |
| classificationCriterion | degree of ionization in water ⓘ |
| contrastsWith | Arrhenius acid ⓘ |
| definedBy | Svante Arrhenius NERFINISHED ⓘ |
| dissolvesIn | water ⓘ |
| example |
ammonium hydroxide (aqueous ammonia)
ⓘ
barium hydroxide ⓘ calcium hydroxide ⓘ cesium hydroxide ⓘ lithium hydroxide ⓘ potassium hydroxide ⓘ rubidium hydroxide ⓘ sodium hydroxide ⓘ strontium hydroxide ⓘ |
| field | acid–base chemistry ⓘ |
| hasChargeBeforeDissociation | often neutral ⓘ |
| hasConjugateConcept | Arrhenius acid ⓘ |
| hasDefinition | substance that increases the concentration of hydroxide ions in aqueous solution ⓘ |
| hasEffectOnIndicator |
causes methyl orange to turn yellow
ⓘ
causes phenolphthalein to turn pink in suitable concentration ⓘ |
| hasGeneralFormula | BOH → B⁺ + OH⁻ in water ⓘ |
| hasIUPACName | Arrhenius base NERFINISHED ⓘ |
| hasProperty |
increases pH of aqueous solution
ⓘ
reacts with Arrhenius acids to form salt and water ⓘ turns red litmus paper blue ⓘ |
| historicalContext | late 19th century acid–base theory ⓘ |
| increasesConcentrationOf | hydroxide ion ⓘ |
| isSubsetOf |
Brønsted–Lowry base
ⓘ
Lewis base ⓘ |
| isTaughtIn | introductory chemistry ⓘ |
| limitation |
does not describe non-aqueous basic behavior
ⓘ
restricted to aqueous solutions ⓘ |
| measurementMethod | titration with Arrhenius acid ⓘ |
| opposesEffectOf | Arrhenius acid in neutralization NERFINISHED ⓘ |
| partOf | Arrhenius acid–base theory NERFINISHED ⓘ |
| producesInSolution | OH⁻ ⓘ |
| relatedTo |
alkalinity
ⓘ
pH scale ⓘ |
| requiresMedium | aqueous solution ⓘ |
| strongBaseExample |
KOH
ⓘ
NaOH ⓘ |
| typicalBonding |
covalent (for some bases like ammonia in water)
ⓘ
ionic ⓘ |
| undergoesReactionType | neutralization ⓘ |
| usedIn | definition of strong and weak bases in aqueous solution ⓘ |
| weakBaseExample | NH₄OH ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.