Difluoromethane
4d9a8790-3ddd-11dd-9ca6-0050c2490048
Identity
- Substance
- fo-b569cec331b995de Neutral molecule
- Source
- EF 3.1
- Unit
- kg
- Context
- Environmental → Air → Ground level → Urban (>1000 people/square mile)
- CAS
- 75-10-5
- EC
- 200-839-4
Context
- Dimension
- Environmental
- Media
- Air
- Population density
- Urban (>1000 people/square mile)
- Strata
- Ground level
Alternative labels
12- CF2H2
- CH2F2
- Difluormethan
- Freon 32
- methylene difluoride
- methylene fluoride
- HFC-32
- Ecolo Ace 32
- Forane 32
- Freon R 32
- Genetron 32
- Methane, difluoro-
Source lists
4| List | Version | Source flow | Name there | Why this flow |
|---|---|---|---|---|
| EF | 3.1 | 4d9a8790-3ddd-11dd-9ca6-0050c2490048 | HFC-32 | The consensus list is built from this one, so this row is the flow itself rather than something matched to it. |
| bafu | 2026-v1 | 785f5026-437a-5af3-8976-a7f83639f1f3 | Methane, difluoro-, HFC-32 | The CAS numbers are the same (75-10-5); both name the same compartment. |
| ecoinvent | 3.12 | c9028b09-c12d-421b-9944-7d145e196ebc | Difluoromethane | The CAS numbers are the same (75-10-5); both name the same compartment. |
| ecoinvent | 3.8 | c9028b09-c12d-421b-9944-7d145e196ebc | Methane, difluoro-, HFC-32 | The CAS numbers are the same (75-10-5); both name the same compartment. |
Concept associations
4| Source list | Source flow | Name there | Compartment there | Match | Conversion |
|---|---|---|---|---|---|
| EF 3.1 | 4d9a8790-3ddd-11dd-9ca6-0050c2490048 | HFC-32 | Emissions/Emissions to air/Emissions to urban air close to ground | exactMatch | — |
| ecoinvent 3.12 | c9028b09-c12d-421b-9944-7d145e196ebc | Difluoromethane | air / urban air close to ground | closeMatch | — |
| ecoinvent 3.8 | c9028b09-c12d-421b-9944-7d145e196ebc | Difluoromethane | air / urban air close to ground | closeMatch | — |
| bafu 2026-v1 | 785f5026-437a-5af3-8976-a7f83639f1f3 | Difluoromethane | emissions to air / high. pop. | closeMatch | — |
Characterisation factors
27- consensus-flow-list 9
- European Commission — JRC 6
- GreenDelta 6
- ecoinvent Centre 6
Every implementation that says anything about this flow. Published as is what this list did with the row: where more than one implementation states a number and they agree it publishes it as agreed; where only one speaks, as sole; where they disagree it publishes nothing and asks.
| Method | Implementation | Category | Place | Factor | Published as |
|---|---|---|---|---|---|
| EF 3.1 | European Commission — JRC | Climate change | — | 771 | — |
| EF 3.1 | ecoinvent Centre | Climate change | — | 771 | — |
| EF 3.1 | GreenDelta | Climate change | — | 771 | — |
| EF 3.1 | consensus-flow-list | Climate change | — | 771 | agreed |
| EF 3.1 | European Commission — JRC | Climate change-Fossil | — | 771 | — |
| EF 3.1 | ecoinvent Centre | Climate change-Fossil | — | 771 | — |
| EF 3.1 | GreenDelta | Climate change-Fossil | — | 771 | — |
| EF 3.1 | consensus-flow-list | Climate change-Fossil | — | 771 | agreed |
| EF 3.1 | European Commission — JRC | Ecotoxicity, freshwater | — | 0.03567 | — |
| EF 3.1 | ecoinvent Centre | Ecotoxicity, freshwater | — | 0.03567 | — |
| EF 3.1 | GreenDelta | Ecotoxicity, freshwater | — | 0.03567 | — |
| EF 3.1 | consensus-flow-list | Ecotoxicity, freshwater | — | 0.03567 | agreed |
| EF 3.1 | European Commission — JRC | Ecotoxicity, freshwater_organics | — | 0.03567 | — |
| EF 3.1 | ecoinvent Centre | Ecotoxicity, freshwater_organics | — | 0.03567 | — |
| EF 3.1 | GreenDelta | Ecotoxicity, freshwater_organics | — | 0.03567 | — |
| EF 3.1 | consensus-flow-list | Ecotoxicity, freshwater_organics | — | 0.03567 | agreed |
| EF 3.1 | European Commission — JRC | Human toxicity, non-cancer | — | 8.8085e-10 | — |
| EF 3.1 | ecoinvent Centre | Human toxicity, non-cancer | — | 8.8085e-10 | — |
| EF 3.1 | GreenDelta | Human toxicity, non-cancer | — | 8.8085e-10 | — |
| EF 3.1 | consensus-flow-list | Human toxicity, non-cancer | — | 8.8085e-10 | agreed |
| EF 3.1 | European Commission — JRC | Human toxicity, non-cancer_organics | — | 8.8085e-10 | — |
| EF 3.1 | ecoinvent Centre | Human toxicity, non-cancer_organics | — | 8.8085e-10 | — |
| EF 3.1 | GreenDelta | Human toxicity, non-cancer_organics | — | 8.8085e-10 | — |
| EF 3.1 | consensus-flow-list | Human toxicity, non-cancer_organics | — | 8.8085e-10 | agreed |
| Stepwise 2006 | consensus-flow-list | Ecotoxicity, aquatic | — | 0.007069 | carried |
| Stepwise 2006 | consensus-flow-list | Ecotoxicity, terrestrial | — | 0.237254 | carried |
| Stepwise 2006 | consensus-flow-list | Global warming, fossil | — | 771 | carried |
History
The change log and the PROV-O trail (4 consensus changes)
These are the heaviest sections of this page and the least often read, so the page does not pay for them until you ask.
Full record
Flow JSON
{
"properties": {
"https://w3id.org/chemrof/molecular_formula": {
"@id": "https://w3id.org/chemrof/molecular_formula",
"@value": [
"CH2F2"
],
"attested_by": {
"CH2F2": [
"enrich_references.chebi_semantic",
"enrich_references.pubchem_semantic",
"rdkit_post_consensus"
]
},
"rdfs:label": "Molecular formula",
"provenance": [
{
"prov:wasGeneratedBy": "enrich_references.chebi_semantic",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855"
],
"prov:wasDerivedFrom": "chebi.basic_property_values.generalized_empirical_formula"
},
{
"prov:wasGeneratedBy": "enrich_references.pubchem_semantic",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345"
],
"prov:wasDerivedFrom": "pubchem.props.Molecular Formula"
},
{
"prov:wasGeneratedBy": "rdkit_post_consensus",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"FCF"
]
}
]
},
"https://w3id.org/chemrof/smiles_string": {
"@id": "https://w3id.org/chemrof/smiles_string",
"rdfs:label": "SMILES",
"@value": [
"FCF"
],
"provenance": [
{
"prov:wasGeneratedBy": "opsin_iupac",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"Difluoromethane"
]
},
{
"prov:wasGeneratedBy": "rdkit_post_consensus",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"FCF"
]
}
],
"attested_by": {
"FCF": [
"opsin_iupac",
"rdkit_post_consensus"
]
}
},
"https://w3id.org/chemrof/inchi2d_string": {
"@id": "https://w3id.org/chemrof/inchi2d_string",
"rdfs:label": "InChI",
"@value": [
"InChI=1S/CH2F2/c2-1-3/h1H2"
],
"provenance": [
{
"prov:wasGeneratedBy": "opsin_iupac",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"Difluoromethane"
]
},
{
"prov:wasGeneratedBy": "rdkit_post_consensus",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"FCF"
]
}
],
"attested_by": {
"InChI=1S/CH2F2/c2-1-3/h1H2": [
"opsin_iupac",
"rdkit_post_consensus"
]
}
},
"https://w3id.org/chemrof/inchi2d_key_string": {
"@id": "https://w3id.org/chemrof/inchi2d_key_string",
"@value": [
"RWRIWBAIICGTTQ-UHFFFAOYSA-N"
],
"attested_by": {
"RWRIWBAIICGTTQ-UHFFFAOYSA-N": [
"enrich_references.chebi_semantic",
"enrich_references.pubchem_semantic",
"rdkit_post_consensus"
]
},
"rdfs:label": "InChIKey",
"provenance": [
{
"prov:wasGeneratedBy": "enrich_references.chebi_semantic",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855"
],
"prov:wasDerivedFrom": "chebi.basic_property_values.inchi_key_string"
},
{
"prov:wasGeneratedBy": "enrich_references.pubchem_semantic",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345"
],
"prov:wasDerivedFrom": "pubchem.props.InChIKey"
},
{
"prov:wasGeneratedBy": "rdkit_post_consensus",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"FCF"
]
}
]
},
"https://w3id.org/chemrof/molecular_mass": {
"@id": "https://w3id.org/chemrof/molecular_mass",
"@value": [
52.023
],
"attested_by": {
"52.023": [
"enrich_references.chebi_semantic",
"rdkit_post_consensus"
]
},
"rdfs:label": "Molecular mass",
"http://qudt.org/schema/qudt/hasUnit": "https://vocab.brightway.one/units/unit/GM-PER-MOL",
"provenance": [
{
"prov:wasGeneratedBy": "enrich_references.chebi_semantic",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855"
],
"prov:wasDerivedFrom": "chebi.basic_property_values.mass"
},
{
"prov:wasGeneratedBy": "rdkit_post_consensus",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"FCF"
]
}
]
},
"https://w3id.org/chemrof/monoisotopic_mass": {
"@id": "https://w3id.org/chemrof/monoisotopic_mass",
"@value": [
52.012457,
52.01246
],
"attested_by": {
"52.01246": [
"enrich_references.chebi_semantic"
],
"52.012457": [
"rdkit_post_consensus",
"rdkit_pre_consensus"
]
},
"rdfs:label": "Monoisotopic mass",
"http://qudt.org/schema/qudt/hasUnit": "https://vocab.brightway.one/units/unit/GM-PER-MOL",
"provenance": [
{
"prov:wasGeneratedBy": "enrich_references.chebi_semantic",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855"
],
"prov:wasDerivedFrom": "chebi.basic_property_values.monoisotopic_mass"
},
{
"prov:wasGeneratedBy": "rdkit_pre_consensus",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"C(F)F"
]
},
{
"prov:wasGeneratedBy": "rdkit_post_consensus",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"FCF"
]
}
]
},
"https://w3id.org/chemrof/elemental_charge": {
"@id": "https://w3id.org/chemrof/elemental_charge",
"@value": [
0
],
"attested_by": {
"0": [
"enrich_references.chebi_semantic"
]
},
"rdfs:label": "Elemental charge",
"http://qudt.org/schema/qudt/hasUnit": "https://vocab.brightway.one/units/unit/NUM",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_semantic",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855"
],
"prov:wasDerivedFrom": "chebi.basic_property_values.charge"
}
},
"https://w3id.org/chemrof/IUPAC_name": {
"@id": "https://w3id.org/chemrof/IUPAC_name",
"rdfs:label": "IUPAC name",
"@value": [
"Difluoromethane"
],
"provenance": {
"prov:wasGeneratedBy": "opsin_iupac",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"Difluoromethane"
]
},
"attested_by": {
"Difluoromethane": [
"opsin_iupac"
]
}
}
},
"references": [
{
"@id": "beilstein:1730795",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
},
{
"@id": "gmelin:259463",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
},
{
"@id": "http://jglobal.jst.go.jp/en/redirect?Nikkaji_No=J28.328B",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345;CAS:75-10-5"
],
"prov:wasDerivedFrom": "pubchem.identifiers[75-10-5]"
}
},
{
"@id": "https://chem.echa.europa.eu/100.000.764",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345;CAS:75-10-5"
],
"prov:wasDerivedFrom": "pubchem.identifiers[75-10-5]"
}
},
{
"@id": "https://commonchemistry.cas.org/detail?cas_rn=75-10-5",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_xrefs",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855"
],
"prov:wasDerivedFrom": "chebi.xrefs_urls"
}
},
{
"@id": "https://comptox.epa.gov/dashboard/DTXSID6029597",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345;CAS:75-10-5"
],
"prov:wasDerivedFrom": "pubchem.identifiers[75-10-5]"
}
},
{
"@id": "https://comptox.epa.gov/dashboard/DTXSID901045808",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345;CAS:75-10-5"
],
"prov:wasDerivedFrom": "pubchem.identifiers[75-10-5]"
}
},
{
"@id": "https://en.wikipedia.org/wiki/Difluoromethane",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345;CAS:75-10-5"
],
"prov:wasDerivedFrom": "pubchem.identifiers[75-10-5]"
}
},
{
"@id": "https://gsrs.ncats.nih.gov/ginas/app/beta/substances/77JW9K722X",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345;CAS:75-10-5"
],
"prov:wasDerivedFrom": "pubchem.identifiers[75-10-5]"
}
},
{
"@id": "https://hmdb.ca/metabolites/HMDB0251269",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345;CAS:75-10-5"
],
"prov:wasDerivedFrom": "pubchem.identifiers[75-10-5]"
}
},
{
"@id": "https://hts.usitc.gov/search?query=2903.42.10.00",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345;CAS:75-10-5"
],
"prov:wasDerivedFrom": "pubchem.identifiers[75-10-5]"
}
},
{
"@id": "https://pubchem.ncbi.nlm.nih.gov/compound/6345",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_compound",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345;CAS:75-10-5"
],
"prov:wasDerivedFrom": "pubchem.by_cas[75-10-5]"
}
},
{
"@id": "https://pubchem.ncbi.nlm.nih.gov/erg/#3252",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345;CAS:75-10-5"
],
"prov:wasDerivedFrom": "pubchem.identifiers[75-10-5]"
}
},
{
"@id": "https://www.ebi.ac.uk/chebi/searchId.do?chebiId=CHEBI:47855",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.chebi_id_link",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855"
],
"prov:wasDerivedFrom": "chebi.id"
}
},
{
"@id": "https://www.ebi.ac.uk/chembl/explore/compound/CHEMBL115186",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345;CAS:75-10-5"
],
"prov:wasDerivedFrom": "pubchem.identifiers[75-10-5]"
}
},
{
"@id": "https://www.metabolomicsworkbench.org/data/StructureData.php?RegNo=56815",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345;CAS:75-10-5"
],
"prov:wasDerivedFrom": "pubchem.identifiers[75-10-5]"
}
},
{
"@id": "https://www.wikidata.org/wiki/Q421742",
"provenance": {
"prov:wasGeneratedBy": "enrich_references.pubchem_identifier_url",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CID:6345;CAS:75-10-5"
],
"prov:wasDerivedFrom": "pubchem.identifiers[75-10-5]"
}
}
],
"prefLabel": [
{
"@value": "Difluoromethane",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "consensus_match",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CAS:75-10-5"
],
"prov:wasDerivedFrom": "Common Chemistry / ChEBI primary name agreement"
}
}
],
"@type": [
"https://w3id.org/chemrof/NeutralMolecule"
],
"http://www.w3.org/2004/02/skos/core#definition": [],
"uuid": "4d9a8790-3ddd-11dd-9ca6-0050c2490048",
"identifier": "4d9a8790-3ddd-11dd-9ca6-0050c2490048",
"source": "EF 3.1",
"cas_numbers": [
"75-10-5"
],
"ec_numbers": [
"200-839-4"
],
"context": {
"dimension": "Environmental",
"media": "Air",
"strata": "Ground level",
"population_density": "Urban (>1000 people/square mile)"
},
"synonyms": [],
"lcia_methods": [
{
"method_uuid": "05316e7a-b254-4bea-9cf0-6bf33eb5c630",
"name": "Ecotoxicity, freshwater",
"methodology": "Environmental Footprint",
"impact_category": "Aquatic eco-toxicity",
"impact_indicator": "Comparative Toxic Unit for ecosystems (CTUe) ",
"characterization_factor": 0.03567
},
{
"method_uuid": "6209b35f-9447-40b5-b68c-a1099e3674a0",
"name": "Climate change",
"methodology": "Environmental Footprint",
"impact_category": "Climate change",
"impact_indicator": "Radiative forcing as Global Warming Potential (GWP100)",
"characterization_factor": 771.0
},
{
"method_uuid": "7cfdcfcf-b222-4b26-888a-a55f9fbf7ac8",
"name": "Human toxicity, non-cancer",
"methodology": "Environmental Footprint",
"impact_category": "Non-cancer human health effects",
"impact_indicator": "Comparative Toxic Unit for human (CTUh)",
"characterization_factor": 8.8085e-10
},
{
"method_uuid": "7fce5b3a-66b8-4ce1-91e8-a925aee1f186",
"name": "Climate change-Fossil",
"methodology": "Environmental Footprint",
"impact_category": "Climate change",
"impact_indicator": "Radiative forcing as Global Warming Potential (GWP100)",
"characterization_factor": 771.0
},
{
"method_uuid": "8c3141e9-1f15-43b5-bff2-182e49893a46",
"name": "Human toxicity, non-cancer_organics",
"methodology": "Environmental Footprint",
"impact_category": "Non-cancer human health effects",
"impact_indicator": "Comparative Toxic Unit for human (CTUh)",
"characterization_factor": 8.8085e-10
},
{
"method_uuid": "fd530f00-9325-424a-92ef-aaac67922fd9",
"name": "Ecotoxicity, freshwater_organics",
"methodology": "Environmental Footprint",
"impact_category": "Aquatic eco-toxicity",
"impact_indicator": "Comparative Toxic Unit for ecosystems (CTUe) ",
"characterization_factor": 0.03567
}
],
"unit": "kg",
"input_datasets": [
"EF 3.1"
],
"altLabel": [
{
"@value": "CF2H2",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "CH2F2",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "Difluormethan",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "Freon 32",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "methylene difluoride",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "methylene fluoride",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "chebi_altlabels",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"http://purl.obolibrary.org/obo/CHEBI_47855",
"EF 3.1"
],
"prov:wasDerivedFrom": "chebi synonym match"
}
},
{
"@value": "HFC-32",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "consensus_match",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"EF 3.1"
],
"prov:wasDerivedFrom": "original name retained as altLabel"
}
},
{
"@value": "Ecolo Ace 32",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "consensus_match",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CAS:75-10-5",
"https://commonchemistry.cas.org/detail?cas_rn=75-10-5"
],
"prov:wasDerivedFrom": "common chemistry CAS lookup"
}
},
{
"@value": "Forane 32",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "consensus_match",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CAS:75-10-5",
"https://commonchemistry.cas.org/detail?cas_rn=75-10-5"
],
"prov:wasDerivedFrom": "common chemistry CAS lookup"
}
},
{
"@value": "Freon R 32",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "consensus_match",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CAS:75-10-5",
"https://commonchemistry.cas.org/detail?cas_rn=75-10-5"
],
"prov:wasDerivedFrom": "common chemistry CAS lookup"
}
},
{
"@value": "Genetron 32",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "consensus_match",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CAS:75-10-5",
"https://commonchemistry.cas.org/detail?cas_rn=75-10-5"
],
"prov:wasDerivedFrom": "common chemistry CAS lookup"
}
},
{
"@value": "Methane, difluoro-",
"@language": "en",
"source": {
"prov:wasGeneratedBy": "consensus_match",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"CAS:75-10-5",
"https://commonchemistry.cas.org/detail?cas_rn=75-10-5"
],
"prov:wasDerivedFrom": "common chemistry CAS lookup"
}
}
],
"context_iri": "https://vocab.brightway.one/flow-contexts/envi-air-grle-ur10pesq",
"unit_iri": "https://vocab.brightway.one/units/unit/KiloGM",
"flow_object_id": "fo-b569cec331b995de",
"concept_associations": [
{
"@type": "xkos:ConceptAssociation",
"xkos:sourceConcept": {
"@id": "https://vocab.brightway.one/ef/3.1/flow/4d9a8790-3ddd-11dd-9ca6-0050c2490048",
"skos:prefLabel": "HFC-32",
"context": "Emissions/Emissions to air/Emissions to urban air close to ground",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/KiloGM"
},
"skos:exactMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/4d9a8790-3ddd-11dd-9ca6-0050c2490048"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/4d9a8790-3ddd-11dd-9ca6-0050c2490048"
},
"provenance": {
"prov:wasGeneratedBy": "build_concept_associations",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"https://eplca.jrc.ec.europa.eu/permalink/EF3_1/EF-v3.1.zip"
]
}
},
{
"@type": "xkos:ConceptAssociation",
"xkos:sourceConcept": {
"@id": "https://vocab.brightway.one/ecoinvent/3.12/flow/c9028b09-c12d-421b-9944-7d145e196ebc",
"skos:prefLabel": "Difluoromethane",
"context": "air / urban air close to ground",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/KiloGM"
},
"skos:closeMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/4d9a8790-3ddd-11dd-9ca6-0050c2490048"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/4d9a8790-3ddd-11dd-9ca6-0050c2490048"
},
"provenance": {
"prov:wasGeneratedBy": "merge_ecoinvent",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"ecoinvent:3.12:c9028b09-c12d-421b-9944-7d145e196ebc",
"Difluoromethane",
"",
"algorithm.lookup_order=cas>ec>label",
"algorithm.basis=cas:75-10-5",
"algorithm.flow_object_candidates=1",
"algorithm.elementary_candidates=13",
"algorithm.selector_reason=exact-context-iri-match",
"algorithm.score_rule=exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
],
"prov:wasDerivedFrom": "algorithmic_fallback:lookup_order(cas>ec>label);basis(cas:75-10-5);flow_object_candidates(1);elementary_candidates(13);selector(exact-context-iri-match);exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
}
},
{
"@type": "xkos:ConceptAssociation",
"xkos:sourceConcept": {
"@id": "https://vocab.brightway.one/ecoinvent/3.8/flow/c9028b09-c12d-421b-9944-7d145e196ebc",
"skos:prefLabel": "Difluoromethane",
"context": "air / urban air close to ground",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/KiloGM"
},
"skos:closeMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/4d9a8790-3ddd-11dd-9ca6-0050c2490048"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/4d9a8790-3ddd-11dd-9ca6-0050c2490048"
},
"provenance": {
"prov:wasGeneratedBy": "merge_ecoinvent",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"ecoinvent:3.8:c9028b09-c12d-421b-9944-7d145e196ebc",
"Difluoromethane",
"",
"algorithm.lookup_order=cas>ec>label",
"algorithm.basis=cas:75-10-5",
"algorithm.flow_object_candidates=1",
"algorithm.elementary_candidates=13",
"algorithm.selector_reason=exact-context-iri-match",
"algorithm.score_rule=exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
],
"prov:wasDerivedFrom": "algorithmic_fallback:lookup_order(cas>ec>label);basis(cas:75-10-5);flow_object_candidates(1);elementary_candidates(13);selector(exact-context-iri-match);exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
}
},
{
"@type": "xkos:ConceptAssociation",
"xkos:sourceConcept": {
"@id": "https://vocab.brightway.one/bafu/2026-v1/flow/785f5026-437a-5af3-8976-a7f83639f1f3",
"skos:prefLabel": "Difluoromethane",
"context": "emissions to air / high. pop.",
"qudt:hasUnit": {
"@id": "https://vocab.brightway.one/units/unit/KiloGM"
},
"skos:closeMatch": {
"@id": "https://vocab.brightway.dev/elementary-flows/4d9a8790-3ddd-11dd-9ca6-0050c2490048"
}
},
"xkos:targetConcept": {
"@id": "https://vocab.brightway.dev/elementary-flows/4d9a8790-3ddd-11dd-9ca6-0050c2490048"
},
"provenance": {
"prov:wasGeneratedBy": "merge_bafu",
"prov:wasAttributedTo": "consensus-flow-list",
"prov:hadPrimarySource": [
"bafu:2026-v1:785f5026-437a-5af3-8976-a7f83639f1f3",
"Difluoromethane",
"",
"algorithm.lookup_order=cas>ec>label",
"algorithm.basis=cas:75-10-5",
"algorithm.flow_object_candidates=1",
"algorithm.elementary_candidates=13",
"algorithm.selector_reason=exact-context-iri-match",
"algorithm.score_rule=exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
],
"prov:wasDerivedFrom": "algorithmic_fallback:lookup_order(cas>ec>label);basis(cas:75-10-5);flow_object_candidates(1);elementary_candidates(13);selector(exact-context-iri-match);exact-iri-shortcircuit;up-tree-filter;score=(2*unit_exact)+context_overlap-context_penalty+context_iri_exact;contradiction-veto"
}
}
],
"_sources": {
"prefLabel": "consensus_match",
"name": "bootstrap_labels",
"synonyms": "bootstrap_labels",
"context": "default_context_mapping",
"context_iri": "default_context_mapping",
"unit_iri": "unit_normalization",
"properties": "normalise_property_values",
"skos_definition": "enrich_references",
"references": "enrich_references",
"altLabel": "strip_catalogue_altlabels",
"cas_match_labels": "consensus_match",
"concept_associations": "carry_associations_onto_flows",
"types": "link_flows_to_their_substance"
},
"cas_match_labels": {
"75-10-5": "exactMatch"
},
"_transformed": true,
"_provided": {
"name": "HFC-32",
"synonyms": [
"AC1L1MBO",
"AC1O5DWB",
"CF2H2",
"CH2F2",
"Carbon fluoride hydride",
"DIFLUOROMETHANE",
"Difluormethan",
"Freon 32",
"Genetron 32",
"HFC 32",
"I14-14868",
"I14-7924",
"Khladon 32",
"Methane, difluoro-",
"Methylene difluoride",
"Methylene fluoride",
"PC2845",
"QMABPYAIh@",
"R 32 (refrigerant)"
],
"context": [
"Emissions",
"Emissions to air",
"Emissions to urban air close to ground"
],
"cas_numbers": [
"75-10-5"
],
"ec_numbers": [
"200-839-4"
],
"unit": "kg"
}
}Something wrong here?
A flow can be wrong in three ways, and they are decided differently. Pick the one that matches what you are looking at.
- A row from my list should not reach this flow
- This flow is not that chemical
- The compartment or the unit is wrong
- One of these characterisation factors cannot be this substance's
You do not need to run a build or clone anything. Name the row and say what your evidence is; the measurement is done for you. How contributing works