Union Carbide Corporation

E92887

American company chemical company 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.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (5)

Label	Occurrences
Union Carbide Corporation canonical	6
Union Carbide and Carbon Corporation	2
Union Carbide	1
Union Carbide (historical operator under contract)	1
Union Carbide India Limited	1

How this entity was disambiguated

This entity first appeared as the object of triple T787306 — 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 Corporation
Context triple: [Dow Chemical Company, hasSubsidiary, Union Carbide Corporation]

A. Dow Chemical Company
Dow Chemical Company is a major American multinational chemical corporation known for producing a wide range of industrial, agricultural, and consumer chemical products.
B. DuPont
DuPont is a major American chemical company historically known for pioneering materials science innovations and playing a key role in U.S. industrial and wartime production.
C. Thiokol
Thiokol was an American aerospace and chemical company best known for manufacturing the solid rocket boosters used on NASA’s Space Shuttle.
D. National Steel Company
National Steel Company was a major early American steel producer that became part of the conglomerate later known as U.S. Steel.
E. SIVA chemical factory
SIVA chemical factory was an Italian industrial plant where writer and chemist Primo Levi worked as a chemist after surviving World War II.
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 Corporation
Target entity description: 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.

A. Dow Chemical Company
Dow Chemical Company is a major American multinational chemical corporation known for producing a wide range of industrial, agricultural, and consumer chemical products.
B. DuPont
DuPont is a major American chemical company historically known for pioneering materials science innovations and playing a key role in U.S. industrial and wartime production.
C. Thiokol
Thiokol was an American aerospace and chemical company best known for manufacturing the solid rocket boosters used on NASA’s Space Shuttle.
D. National Steel Company
National Steel Company was a major early American steel producer that became part of the conglomerate later known as U.S. Steel.
E. SIVA chemical factory
SIVA chemical factory was an Italian industrial plant where writer and chemist Primo Levi worked as a chemist after surviving World War II.
F. None of above. chosen

Statements (48)

Predicate	Object
instanceOf	American company ⓘ chemical company ⓘ corporation ⓘ
acquiredBy	Dow Chemical Company ⓘ
acquisitionYear	2001 ⓘ
activity	manufacture of industrial chemicals ⓘ manufacture of plastics ⓘ manufacture of polymers ⓘ research and development in chemistry ⓘ
brand	UCAR ⓘ
changedNameTo	Union Carbide Corporation self-link ⓘ
country	United States of America ⓘ surface form: United States
formerHeadquartersLocation	Danbury, Connecticut ⓘ
foundedAs	Union Carbide Corporation self-linksurface differs ⓘ surface form: Union Carbide and Carbon Corporation
foundedIn	1917 ⓘ
foundedInCentury	20th century ⓘ
headquartersLocation	Houston ⓘ surface form: Houston, Texas
industry	chemicals ⓘ petrochemicals ⓘ polymers ⓘ
involvedIn	environmental litigation ⓘ industrial safety controversies ⓘ
legalForm	corporation ⓘ
locationCountryOfOperations	Brazil ⓘ Canada ⓘ Germany ⓘ India ⓘ United States of America ⓘ surface form: United States
notableEvent	Bhopal disaster ⓘ surface form: 1984 gas leak at Bhopal
notableFor	Bhopal disaster ⓘ
operatedPlantIn	Bhopal ⓘ surface form: Bhopal, India
parentCompany	Dow Chemical Company ⓘ Dow Chemical Company ⓘ surface form: Dow Inc.
product	adhesives ⓘ ethylene glycol ⓘ ethylene oxide ⓘ industrial gases ⓘ polyethylene ⓘ polypropylene ⓘ sealants ⓘ solvents ⓘ specialty polymers ⓘ vinyl chloride monomer ⓘ
roleInEvent	owner of Union Carbide India Limited at time of Bhopal disaster ⓘ
status	subsidiary ⓘ
stockExchangeListing	New York Stock Exchange ⓘ
subsidiaryInIndia	Union Carbide Corporation self-linksurface differs ⓘ surface form: Union Carbide India Limited
tickerSymbol	UK ⓘ

How these facts were elicited

Referenced by (11)

Full triples — surface form annotated when it differs from this entity's canonical label.

Dow Chemical Company → hasSubsidiary → Union Carbide Corporation ⓘ

Paducah Gaseous Diffusion Plant → operatedBy → Union Carbide Corporation ⓘ

this entity surface form: Union Carbide

Union Carbide Corporation → subsidiaryInIndia → Union Carbide Corporation self-linksurface differs ⓘ

this entity surface form: Union Carbide India Limited

Union Carbide Corporation → foundedAs → Union Carbide Corporation self-linksurface differs ⓘ

this entity surface form: Union Carbide and Carbon Corporation

Union Carbide Corporation → changedNameTo → Union Carbide Corporation self-link ⓘ

Oak Ridge Gaseous Diffusion Plant → managedBy → Union Carbide Corporation ⓘ

this entity surface form: Union Carbide (historical operator under contract)

Union Carbide Building (as SOM partner) → originalClient → Union Carbide Corporation ⓘ

subject surface form: Union Carbide Building

Bhopal disaster → parentCompany → Union Carbide Corporation ⓘ

UCAR → associatedWith → Union Carbide Corporation ⓘ

UCAR → historicallyOwnedBy → Union Carbide Corporation ⓘ

John Motley Morehead III → employer → Union Carbide Corporation ⓘ