Freon
E192842
Freon is a family of chlorofluorocarbon (CFC) and related refrigerant gases historically used in air conditioning, refrigeration, and aerosol propellants, later restricted due to their role in ozone layer depletion.
All labels observed (5)
How this entity was disambiguated
This entity first appeared as the object of triple T1717243 — 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: Freon Context triple: [DuPont, developed, Freon]
-
A.
Halogen
Halogen is a contemporary clothing and accessories brand known for offering stylish, versatile pieces often sold through retailers like Nordstrom.
-
B.
CFC
CFC is the commonly used abbreviation for the United States Court of Federal Claims, a federal court that hears monetary claims against the U.S. government.
-
C.
Oxy
Oxy is the commonly used nickname for Occidental College, a private liberal arts college in Los Angeles, California.
-
D.
Fremulon
Fremulon is a television production company founded by Michael Schur, best known for producing acclaimed comedy series such as Brooklyn Nine-Nine.
-
E.
T-Stoff (high-test hydrogen peroxide)
T-Stoff (high-test hydrogen peroxide) was a highly concentrated, volatile oxidizer used as rocket propellant in German World War II aircraft and missiles, notably the Messerschmitt Me 163.
- 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: Freon Target entity description: Freon is a family of chlorofluorocarbon (CFC) and related refrigerant gases historically used in air conditioning, refrigeration, and aerosol propellants, later restricted due to their role in ozone layer depletion.
-
A.
Halogen
Halogen is a contemporary clothing and accessories brand known for offering stylish, versatile pieces often sold through retailers like Nordstrom.
-
B.
CFC
CFC is the commonly used abbreviation for the United States Court of Federal Claims, a federal court that hears monetary claims against the U.S. government.
-
C.
Oxy
Oxy is the commonly used nickname for Occidental College, a private liberal arts college in Los Angeles, California.
-
D.
Fremulon
Fremulon is a television production company founded by Michael Schur, best known for producing acclaimed comedy series such as Brooklyn Nine-Nine.
-
E.
T-Stoff (high-test hydrogen peroxide)
T-Stoff (high-test hydrogen peroxide) was a highly concentrated, volatile oxidizer used as rocket propellant in German World War II aircraft and missiles, notably the Messerschmitt Me 163.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
brand name
ⓘ
chemical product family ⓘ chlorofluorocarbon ⓘ chlorofluorocarbon ⓘ chlorofluorocarbon ⓘ chlorofluorocarbon ⓘ hydrochlorofluorocarbon ⓘ refrigerant ⓘ trademark ⓘ |
| brandOwner |
Chemours
ⓘ
DuPont ⓘ |
| chemicalFormula |
CCl2F2
ⓘ
CCl3F ⓘ CHClF2 ⓘ |
| chemicalName |
1,1,2-trichloro-1,2,2-trifluoroethane
ⓘ
chlorodifluoromethane ⓘ dichlorodifluoromethane ⓘ trichlorofluoromethane ⓘ |
| discoveredBy | DuPont chemists ⓘ |
| environmentalImpact |
greenhouse gas emissions
ⓘ
ozone layer depletion ⓘ |
| hasComponent |
chlorofluorocarbon
ⓘ
hydrochlorofluorocarbon ⓘ hydrofluorocarbon ⓘ |
| introducedInDecade | 1930s ⓘ |
| marketedAs |
CFC refrigerant
ⓘ
HCFC refrigerant ⓘ HFC refrigerant ⓘ |
| notableProduct |
Freon
self-linksurface differs
ⓘ
surface form:
Freon-11
Freon self-linksurface differs ⓘ
surface form:
Freon-113
Freon self-linksurface differs ⓘ
surface form:
Freon-12
Freon self-linksurface differs ⓘ
surface form:
Freon-22
|
| phaseOutReason | ozone-depleting potential ⓘ |
| property |
chemically stable under normal conditions
ⓘ
low boiling point ⓘ nonflammable (for many formulations) ⓘ |
| regulation |
Montreal Protocol on Substances that Deplete the Ozone Layer
ⓘ
surface form:
Montreal Protocol
|
| replaced |
earlier flammable refrigerants such as hydrocarbons
ⓘ
earlier toxic refrigerants such as ammonia ⓘ earlier toxic refrigerants such as sulfur dioxide ⓘ |
| subjectTo |
production phase-out in many countries
ⓘ
use restrictions in many countries ⓘ |
| typicalApplication |
automotive air conditioning
ⓘ
chillers ⓘ commercial refrigeration systems ⓘ domestic refrigerators ⓘ insulating foam production ⓘ spray aerosol cans ⓘ |
| usedFor |
aerosol propellant
ⓘ
air conditioning ⓘ foam blowing ⓘ industrial cooling ⓘ refrigeration ⓘ |
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: Freon Description of subject: Freon is a family of chlorofluorocarbon (CFC) and related refrigerant gases historically used in air conditioning, refrigeration, and aerosol propellants, later restricted due to their role in ozone layer depletion.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Freon-12
this entity surface form:
Freon-11
this entity surface form:
Freon-22
this entity surface form:
Freon-113