Sverdlovsk-45 (Novouralsk)

E683118

closed city nuclear industry center

Sverdlovsk-45, now known as Novouralsk, is a former secret Soviet closed city in Sverdlovsk Oblast that was a major center for the nuclear industry and uranium enrichment.

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

All labels observed (3)

Label	Occurrences
Sverdlovsk-44 (Sverdlovsk-44 postal code name)	1
Sverdlovsk-45	1
Sverdlovsk-45 (Novouralsk) canonical	1

How this entity was disambiguated

This entity first appeared as the object of triple T7320971 — 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: Sverdlovsk-45 (Novouralsk)
Context triple: [Sverdlovsk Oblast, hasClosedCity, Sverdlovsk-45 (Novouralsk)]

A. Sverdlovsk
Sverdlovsk is the former name of Yekaterinburg, a major industrial and cultural city in Russia’s Ural region.
B. Magnitogorsk
Magnitogorsk is a major industrial city in Russia’s Chelyabinsk Oblast, historically centered around one of the world’s largest iron and steel works.
C. Nizhnekamsk
Nizhnekamsk is a major industrial city in Russia known for its large petrochemical and oil refining complexes.
D. Nizhny Tagil
Nizhny Tagil is a major industrial city in Russia’s Sverdlovsk Oblast, historically known for its metallurgical plants and role in the country’s heavy industry.
E. Novokuybyshevsk
Novokuybyshevsk is an industrial city in Samara Oblast, Russia, known for its major oil refining and petrochemical industries.
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: Sverdlovsk-45 (Novouralsk)
Target entity description: Sverdlovsk-45, now known as Novouralsk, is a former secret Soviet closed city in Sverdlovsk Oblast that was a major center for the nuclear industry and uranium enrichment.

A. Sverdlovsk
Sverdlovsk is the former name of Yekaterinburg, a major industrial and cultural city in Russia’s Ural region.
B. Magnitogorsk
Magnitogorsk is a major industrial city in Russia’s Chelyabinsk Oblast, historically centered around one of the world’s largest iron and steel works.
C. Nizhnekamsk
Nizhnekamsk is a major industrial city in Russia known for its large petrochemical and oil refining complexes.
D. Nizhny Tagil
Nizhny Tagil is a major industrial city in Russia’s Sverdlovsk Oblast, historically known for its metallurgical plants and role in the country’s heavy industry.
E. Novokuybyshevsk
Novokuybyshevsk is an industrial city in Samara Oblast, Russia, known for its major oil refining and petrochemical industries.
F. None of above. chosen

Statements (43)

Predicate	Object
instanceOf	closed city ⓘ nuclear industry center ⓘ
administrativeCenterOf	Novouralsky Urban Okrug ⓘ
administrativeDivision	Sverdlovsk Oblast ⓘ
administrativeStatus	city under oblast jurisdiction ⓘ
associatedWith	Ural Electrochemical Combine ⓘ linked to: Ural Electrochemical Integrated Plant
belongsToCategory	Soviet closed cities ⓘ linked to: Pripyat nuclear cities of Russia ⓘ
classification	secret city during Soviet era ⓘ
controlledBy	Rosatom (successor structures) ⓘ linked to: State Atomic Energy Corporation Rosatom Soviet military-industrial complex ⓘ linked to: Soviet military–industrial complex
coordinatesRegion	eastern slope of the Ural Mountains ⓘ
country	Soviet Union ⓘ
countryAfter1991	Russian Federation ⓘ linked to: Russia
economicSector	nuclear fuel cycle ⓘ
function	nuclear fuel production ⓘ uranium enrichment center ⓘ
governedAs	closed administrative-territorial formation ⓘ
hadCodeName	Sverdlovsk-45 ⓘ linked to: Sverdlovsk-45 (Novouralsk)
hasAlternativeName	Novouralsk ⓘ
hasCurrentName	Novouralsk ⓘ
hasLanguage	Russian ⓘ
hasType	monotown (single-industry city) ⓘ
historicalRole	major center of Soviet uranium enrichment ⓘ
industry	nuclear technology ⓘ uranium enrichment ⓘ
locatedIn	Russia ⓘ Sverdlovsk Oblast ⓘ
locatedOn	Asia–Europe boundary region ⓘ
mainEmployer	Ural Electrochemical Combine ⓘ linked to: Ural Electrochemical Integrated Plant
near	Yekaterinburg ⓘ
partOf	Russian nuclear industry ⓘ linked to: Russian nuclear weapons complex Soviet nuclear program ⓘ linked to: Soviet thermonuclear weapons program
region	Ural region ⓘ
securityStatus	closed city (restricted access) ⓘ
statusAfterUSSR	remained a closed city ⓘ
strategicImportance	high ⓘ
timePeriod	Cold War ⓘ
timezone	Yekaterinburg Time ⓘ
transportRestrictions	restricted entry and exit ⓘ
usedFor	production of enriched uranium for nuclear power plants ⓘ production of enriched uranium for nuclear weapons ⓘ
wasRenamedAs	Novouralsk ⓘ

How these facts were elicited

Referenced by (3)

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

Sverdlovsk Oblast → hasClosedCity → Sverdlovsk-45 (Novouralsk) ⓘ

Novouralsk → hasAlternativeName → Sverdlovsk-44 (Sverdlovsk-44 postal code name) ⓘ

linked to: Sverdlovsk-45 (Novouralsk)

Sverdlovsk-45 → hadCodeName → Sverdlovsk-45 ⓘ

subject linked to: Sverdlovsk-45 (Novouralsk)