Bunsen cell
E423508
The Bunsen cell is a 19th-century zinc–carbon electrochemical cell that provided a relatively powerful and inexpensive source of direct current for early laboratory and industrial applications.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Bunsen cell canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4238822 — 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: Bunsen cell Context triple: [Robert Bunsen, developed, Bunsen cell]
-
A.
Voltaic pile
The Voltaic pile is the first chemical battery, invented by Alessandro Volta, which provided a continuous and reliable source of electric current and laid the foundation for modern electrochemistry and electrical engineering.
-
B.
Leyden jar
The Leyden jar is an early form of capacitor that stores static electric charge on metal foil layers separated by an insulating glass container.
-
C.
Nernst–Lamp
The Nernst–Lamp is an early type of electric lamp that used a heated ceramic rod as a light-emitting element and played a significant role in the development of incandescent lighting technology.
-
D.
Fleming valve
The Fleming valve is an early thermionic vacuum tube diode invented by John Ambrose Fleming that enabled the rectification and detection of radio signals, laying groundwork for modern electronics.
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E.
Volta Laboratory
Volta Laboratory was an experimental research facility established in the late 19th century that became a key center for innovation in sound recording, telephony, and related communication technologies.
- 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: Bunsen cell Target entity description: The Bunsen cell is a 19th-century zinc–carbon electrochemical cell that provided a relatively powerful and inexpensive source of direct current for early laboratory and industrial applications.
-
A.
Voltaic pile
The Voltaic pile is the first chemical battery, invented by Alessandro Volta, which provided a continuous and reliable source of electric current and laid the foundation for modern electrochemistry and electrical engineering.
-
B.
Leyden jar
The Leyden jar is an early form of capacitor that stores static electric charge on metal foil layers separated by an insulating glass container.
-
C.
Nernst–Lamp
The Nernst–Lamp is an early type of electric lamp that used a heated ceramic rod as a light-emitting element and played a significant role in the development of incandescent lighting technology.
-
D.
Fleming valve
The Fleming valve is an early thermionic vacuum tube diode invented by John Ambrose Fleming that enabled the rectification and detection of radio signals, laying groundwork for modern electronics.
-
E.
Volta Laboratory
Volta Laboratory was an experimental research facility established in the late 19th century that became a key center for innovation in sound recording, telephony, and related communication technologies.
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf |
electrochemical cell
ⓘ
primary cell ⓘ zinc–carbon cell ⓘ |
| advantage |
relatively inexpensive
ⓘ
relatively powerful source of current ⓘ |
| anodeMaterial | zinc ⓘ |
| category | historical battery type ⓘ |
| cathodeMaterial | carbon ⓘ |
| component |
inner porous pot containing nitric acid and carbon
ⓘ
outer vessel containing sulfuric acid and zinc ⓘ |
| contains | porous pot ⓘ |
| countryOfOrigin | Germany ⓘ |
| differenceFromGroveCell | uses carbon instead of platinum as cathode ⓘ |
| electrolyte | dilute sulfuric acid ⓘ |
| eraOfUse | mid-19th century ⓘ |
| gasEmissions | nitrogen dioxide ⓘ |
| hasElectrodeReaction |
reduction of nitric acid at cathode
ⓘ
zinc oxidation at anode ⓘ |
| hazard | toxic nitrogen oxides fumes ⓘ |
| introducedBy | Robert Bunsen ⓘ |
| introducedInCentury | 19th century ⓘ |
| namedAfter | Robert Bunsen ⓘ |
| oxidizingAgent | nitric acid ⓘ |
| produces | direct current ⓘ |
| replaced | Grove cell ⓘ |
| similarTo | Grove cell ⓘ |
| typicalVoltage | about 1.9 volts ⓘ |
| usedFor |
early industrial applications
ⓘ
laboratory power supply ⓘ |
| usedIn |
early electric lighting experiments
ⓘ
electrolysis experiments ⓘ telegraphy experiments ⓘ |
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: Bunsen cell Description of subject: The Bunsen cell is a 19th-century zinc–carbon electrochemical cell that provided a relatively powerful and inexpensive source of direct current for early laboratory and industrial applications.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.