Union Carbide India Limited
E650531
Union Carbide India Limited was the Indian subsidiary of Union Carbide Corporation that operated the pesticide plant responsible for the 1984 Bhopal gas tragedy, one of the world’s worst industrial disasters.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Union Carbide India Limited canonical | 2 |
| Union Carbide India Limited pesticide plant | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7241175 — 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: Union Carbide India Limited Context triple: [Bhopal, disasterCompanyInvolved, Union Carbide India Limited]
-
A.
Bengal Chemicals & Pharmaceuticals
Bengal Chemicals & Pharmaceuticals is one of India’s earliest indigenous pharmaceutical and chemical manufacturing companies, established in the late 19th century and known for pioneering the country’s modern chemical industry.
-
B.
Union Carbide Corporation
Union Carbide Corporation is a major American chemical company best known for its role in the 1984 Bhopal disaster and for producing a wide range of industrial chemicals and polymers.
-
C.
Hindalco Industries
Hindalco Industries is a leading Indian metals company, primarily engaged in aluminium and copper production, and is part of the Aditya Birla Group conglomerate.
-
D.
Birla Corporation Limited
Birla Corporation Limited is a major Indian conglomerate company of the Birla family, primarily known for its cement and building materials business along with diversified industrial interests.
-
E.
Mishra Dhatu Nigam Limited
Mishra Dhatu Nigam Limited is an Indian public sector company specializing in the manufacture of superalloys, special steels, and titanium alloys primarily for strategic sectors such as defence, space, and nuclear energy.
- 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: Union Carbide India Limited Target entity description: Union Carbide India Limited was the Indian subsidiary of Union Carbide Corporation that operated the pesticide plant responsible for the 1984 Bhopal gas tragedy, one of the world’s worst industrial disasters.
-
A.
Bengal Chemicals & Pharmaceuticals
Bengal Chemicals & Pharmaceuticals is one of India’s earliest indigenous pharmaceutical and chemical manufacturing companies, established in the late 19th century and known for pioneering the country’s modern chemical industry.
-
B.
Union Carbide Corporation
Union Carbide Corporation is a major American chemical company best known for its role in the 1984 Bhopal disaster and for producing a wide range of industrial chemicals and polymers.
-
C.
Hindalco Industries
Hindalco Industries is a leading Indian metals company, primarily engaged in aluminium and copper production, and is part of the Aditya Birla Group conglomerate.
-
D.
Birla Corporation Limited
Birla Corporation Limited is a major Indian conglomerate company of the Birla family, primarily known for its cement and building materials business along with diversified industrial interests.
-
E.
Mishra Dhatu Nigam Limited
Mishra Dhatu Nigam Limited is an Indian public sector company specializing in the manufacture of superalloys, special steels, and titanium alloys primarily for strategic sectors such as defence, space, and nuclear energy.
- F. None of above. chosen
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf | company ⓘ |
| associatedWith |
industrial disaster
ⓘ
mass casualties in Bhopal ⓘ toxic gas leak ⓘ |
| causeOf |
long-term environmental pollution in Bhopal
ⓘ
long-term health problems among Bhopal residents ⓘ |
| country | India ⓘ |
| dateOfMajorAccident |
1984-12-02
ⓘ
1984-12-03 ⓘ |
| headquartersLocation | India NERFINISHED ⓘ |
| historicalPeriod | 20th century ⓘ |
| industry |
chemical industry
ⓘ
pesticide manufacturing ⓘ |
| legalConsequences |
civil compensation claims
ⓘ
criminal cases in Indian courts ⓘ |
| locationOfAccident |
Bhopal
NERFINISHED
ⓘ
India NERFINISHED ⓘ Madhya Pradesh NERFINISHED ⓘ |
| notableFor |
Bhopal gas tragedy
NERFINISHED
ⓘ
one of the world’s worst industrial disasters ⓘ |
| operatedFacilityResponsibleFor | Bhopal disaster NERFINISHED ⓘ |
| operatedPlantIn |
Bhopal
NERFINISHED
ⓘ
India NERFINISHED ⓘ Madhya Pradesh NERFINISHED ⓘ |
| operatedTypeOfFacility |
chemical plant
ⓘ
pesticide plant ⓘ |
| operationalStatus | defunct ⓘ |
| ownedBy | Union Carbide Corporation NERFINISHED ⓘ |
| parentCompany | Union Carbide Corporation NERFINISHED ⓘ |
| partOf | Union Carbide’s global operations NERFINISHED ⓘ |
| product |
methyl isocyanate
ⓘ
pesticides ⓘ |
| reasonForNotability | role in the 1984 Bhopal gas tragedy ⓘ |
| regulatoryIssue |
environmental contamination
ⓘ
industrial safety violations ⓘ |
| responsibleFor | Bhopal disaster NERFINISHED ⓘ |
| significantEvent | Bhopal disaster NERFINISHED ⓘ |
| subjectOf |
Bhopal disaster litigation
NERFINISHED
ⓘ
environmental justice campaigns ⓘ industrial safety reforms debate ⓘ |
| subsidiaryOf | Union Carbide Corporation NERFINISHED ⓘ |
| usedChemical |
methyl isocyanate
ⓘ
phosgene ⓘ sevin ⓘ |
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: Union Carbide India Limited Description of subject: Union Carbide India Limited was the Indian subsidiary of Union Carbide Corporation that operated the pesticide plant responsible for the 1984 Bhopal gas tragedy, one of the world’s worst industrial disasters.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Union Carbide India Limited pesticide plant