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.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Arrhenius base canonical | 3 |
| Arrhenius definition of bases | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5991909 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Arrhenius base Context triple: [Svante Arrhenius, hasEponym, Arrhenius base]
-
A.
Debye–Hückel theory
Debye–Hückel theory is a foundational model in physical chemistry that explains how electrostatic interactions between ions in solution affect properties such as activity coefficients and equilibrium behavior in electrolytes.
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B.
Base
Base is Julia’s core standard library module that provides fundamental language functionality, built-in types, and essential operations.
-
C.
BASE
BASE is a physics experiment at CERN that precisely measures the properties of antiprotons to test fundamental symmetries such as CPT invariance.
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D.
Norrish
Norrish is a surname most notably associated with Ronald George Wreyford Norrish, the British chemist and Nobel laureate recognized for his work in chemical kinetics and photochemistry.
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E.
Asine
Asine is an ancient coastal settlement in the Argolid of Greece, known for its significant archaeological remains dating back to the Bronze Age and Classical periods.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Arrhenius base Target entity description: 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.
-
A.
Debye–Hückel theory
Debye–Hückel theory is a foundational model in physical chemistry that explains how electrostatic interactions between ions in solution affect properties such as activity coefficients and equilibrium behavior in electrolytes.
-
B.
Base
Base is Julia’s core standard library module that provides fundamental language functionality, built-in types, and essential operations.
-
C.
BASE
BASE is a physics experiment at CERN that precisely measures the properties of antiprotons to test fundamental symmetries such as CPT invariance.
-
D.
Norrish
Norrish is a surname most notably associated with Ronald George Wreyford Norrish, the British chemist and Nobel laureate recognized for his work in chemical kinetics and photochemistry.
-
E.
Asine
Asine is an ancient coastal settlement in the Argolid of Greece, known for its significant archaeological remains dating back to the Bronze Age and Classical periods.
- F. None of above. chosen
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 ⓘ |
| 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 ⓘ |
| 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
ⓘ
linked to:
Arrhenius acid
|
| partOf | Arrhenius acid–base theory ⓘ |
| 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 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Arrhenius base Description of subject: 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.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Arrhenius base