Vanadium
E227372
Vanadium is a hard, silvery-gray transition metal element used in strong alloys and known for imparting green coloration to certain minerals and gemstones.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Vanadium canonical | 1 |
| vanadium (initially named pancromium and erythronium) | 1 |
| vanadium (rediscovery) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2011617 — 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: Vanadium Context triple: [Emerald, coloringElement, Vanadium]
-
A.
Chromium
Chromium is an open-source web browser project that serves as the foundation for several major browsers, including Google Chrome.
-
B.
Albium Ingaunum
Albium Ingaunum was an important ancient Ligurian coastal city, located in what is now Albenga on the Italian Riviera.
-
C.
Nickel
Nickel is a chemical element and transition metal known for its hardness, corrosion resistance, and widespread use in alloys and batteries.
-
D.
Phosphoros
Phosphoros is an epithet meaning “light-bringer,” associated with Hecate in her aspect as a luminous, guiding deity linked to the appearance of the morning star.
-
E.
Samnium
Samnium was an ancient region of south-central Italy inhabited by the Samnites, an Oscan-speaking Italic people known for their wars with the Roman Republic.
- 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: Vanadium Target entity description: Vanadium is a hard, silvery-gray transition metal element used in strong alloys and known for imparting green coloration to certain minerals and gemstones.
-
A.
Chromium
Chromium is an open-source web browser project that serves as the foundation for several major browsers, including Google Chrome.
-
B.
Albium Ingaunum
Albium Ingaunum was an important ancient Ligurian coastal city, located in what is now Albenga on the Italian Riviera.
-
C.
Nickel
Nickel is a chemical element and transition metal known for its hardness, corrosion resistance, and widespread use in alloys and batteries.
-
D.
Phosphoros
Phosphoros is an epithet meaning “light-bringer,” associated with Hecate in her aspect as a luminous, guiding deity linked to the appearance of the morning star.
-
E.
Samnium
Samnium was an ancient region of south-central Italy inhabited by the Samnites, an Oscan-speaking Italic people known for their wars with the Roman Republic.
- F. None of above. chosen
Statements (51)
| Predicate | Object |
|---|---|
| instanceOf |
chemical element
ⓘ
transition metal ⓘ |
| appearance | silvery-gray metal ⓘ |
| atomicNumber | 23 ⓘ |
| belongsToSeries | transition metals ⓘ |
| biologicalRole | trace element in some organisms ⓘ |
| blockInPeriodicTable | d-block ⓘ |
| boilingPoint | 3407 °C ⓘ |
| CASNumber | 7440-62-2 ⓘ |
| chemicalSymbol | V ⓘ |
| colorationEffect |
imparts green color to some gemstones
ⓘ
imparts green color to some minerals ⓘ |
| countryWithMajorProduction |
China
ⓘ
Russia ⓘ South Africa ⓘ |
| crystalStructure | body-centered cubic ⓘ |
| densityAtRoomTemperature | 6.11 g/cm³ ⓘ |
| discoveredBy | Andrés Manuel del Río ⓘ |
| discoveryYear | 1801 ⓘ |
| electricalResistivity | 197 nΩ·m at 20 °C ⓘ |
| electronConfiguration | [Ar] 3d³ 4s² ⓘ |
| electronegativityPauling | 1.63 ⓘ |
| groupInPeriodicTable | 5 ⓘ |
| hardness | hard metal ⓘ |
| isotopicComposition |
has radioactive isotope 50V
ⓘ
has stable isotope 51V ⓘ |
| magneticProperty | paramagnetic ⓘ |
| meltingPoint | 1910 °C ⓘ |
| mostStableOxidationState | +5 ⓘ |
| namedAfter |
Vanadis
ⓘ
linked to:
Vanadís
|
| nameOrigin |
Vanadis, a Scandinavian goddess
ⓘ
linked to:
Vanadís
|
| naturalOccurrence |
occurs in carnotite
ⓘ
occurs in patronite ⓘ primarily in minerals such as vanadinite ⓘ |
| oxidationState |
+2
ⓘ
+3 ⓘ +4 ⓘ +5 ⓘ |
| periodInPeriodicTable | 4 ⓘ |
| rediscoveredBy | Nils Gabriel Sefström ⓘ |
| rediscoveryYear | 1830 ⓘ |
| standardAtomicWeight | 50.9415 ⓘ |
| thermalConductivity | 30.7 W/(m·K) ⓘ |
| toxicity | toxic at elevated exposure levels ⓘ |
| usedIn |
aerospace alloys
ⓘ
catalysts for sulfuric acid production ⓘ ceramic and glass pigments ⓘ high-strength low-alloy steels ⓘ titanium alloys ⓘ tool steels ⓘ vanadium redox flow batteries ⓘ |
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: Vanadium Description of subject: Vanadium is a hard, silvery-gray transition metal element used in strong alloys and known for imparting green coloration to certain minerals and gemstones.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.