Consensus flow list

Uranium-234

fo-b61313e66a8bd8af

Identity

Type
Isotope
CAS
13966-29-5
EC
—
Origin
EF 3.1 hybrid_name_cas_v1
Changes
50 across every transformer

Structure

Structure diagram for Uranium-234

This substance carries 2 candidate structures; the diagram is the first one RDKit could parse, not a settled answer.

Properties

PropertyValue
Decay mode chemrof:decay_mode IS=0.0054±0.5%; α=100%; SF=1.64e-9±2.2%; 28Mg=1.4e-11±0.3%; 24Ne+26Ne=9e-12±0.7%
Half life chemrof:half_life 245500.0
Has element chemrof:has_element {'@id': 'https://vocab.brightway.dev/flow-objects/fo-93d10c394b58394e'}
InChI2D key string chemrof:inchi2d_key_string JFALSRSLKYAFGM-AHCXROLUSA-N
InChI2D string chemrof:inchi2d_string InChI=1S/U/i1-4
Isomeric SMILES string chemrof:isomeric_smiles_string [234U]
Isotope isotope {"nuclide":"234U","mass_number":234,"atomic_mass_and_uncertainty_u":"234.040950296 ± 0.000001212","half_life_and_uncertainty":"245.5 ky ± 0.6","decay_modes":"IS=0.0054±0.5%; α=100%; SF=1.64e-9±2.2%; 28Mg=1.4e-11±0.3%; 24Ne+26Ne=9e-12±0.7%","discovery_year":"1912","specific_activity_bq_per_g":"230370257.49594","specific_activity_bq_per_g_value":230370257.49594,"half_life_chemlin":"2.455(6)e5 years","chemlin_url":"https://www.chemlin.org/isotope/uranium-234","isomer_resolution":{"wanted_nuclide":"U-234","expected_half_life_days":89668875.0,"attempted_slugs":["234"],"attempted_urls":["https://www.chemlin.org/isotope/uranium-234"],"strategy":"half_life_agrees_with_pubchem","selected_slug":"uranium-234","selected_half_life":"2.455(6)e5 years","selected_half_life_days":89668875.0,"half_life_ratio_to_pubchem":1.0,"alternates":[]},"symbol":"U","isomeric_state":"","metastable":false}
Isotope lookup isotope_lookup {"is_kbq_candidate":true,"matched":true,"matched_on":"Uranium-234","claimed_nuclide":"U-234","resolved_nuclide":"U-234","state_resolution":{"claimed_state":"","selected_state":"","strategy":"state_taken_as_written","candidates":[]},"checks":[{"check":"ground_state_does_not_decay_by_isomeric_transition","passed":true,"detail":"IS=0.0054±0.5%; α=100%; SF=1.64e-9±2.2%; 28Mg=1.4e-11±0.3%; 24Ne+26Ne=9e-12±0.7%"},{"check":"half_life_sources_agree","passed":true,"detail":{"pubchem_days":89668875.0,"chemlin_days":89668875.0,"ratio":1.0}}],"reason":"","source":"pubchem_pug_view_annotation_heading","sources":["pubchem_pug_view_annotation_heading","https://www.chemlin.org"],"isomer_resolution":{"wanted_nuclide":"U-234","expected_half_life_days":89668875.0,"attempted_slugs":["234"],"attempted_urls":["https://www.chemlin.org/isotope/uranium-234"],"strategy":"half_life_agrees_with_pubchem","selected_slug":"uranium-234","selected_half_life":"2.455(6)e5 years","selected_half_life_days":89668875.0,"half_life_ratio_to_pubchem":1.0,"alternates":[]}}
IUPAC name chemrof:IUPAC_name uranium-234
Molecular formula chemrof:molecular_formula U
Molecular mass chemrof:molecular_mass 234.041
Monoisotopic mass chemrof:monoisotopic_mass 234.040952
Nucleon number chemrof:nucleon_number 234
Relationships relationships {"parent_element_flow_object_id":"fo-93d10c394b58394e","relationship_type":"isotope_of"}
SMILES string chemrof:smiles_string [U]
Symbol chemrof:symbol U

Known URLs

8

Where else this substance is described. Collected while the pipeline resolved it — from ChEBI's cross-references, from PubChem's identifier list, and from the CAS number — so a link here is a record the merge actually read, not a search it suggests.

Resource URL Recorded by
CAS Common Chemistry https://commonchemistry.cas.org/detail?cas_rn=13966-29-5 enrich_references.pubchem_identifier_url
ChemLin https://www.chemlin.org —
ChemLin https://www.chemlin.org/isotope/uranium-234 —
comptox.epa.gov https://comptox.epa.gov/dashboard/DTXSID40891752 enrich_references.pubchem_identifier_url
PubChem https://pubchem.ncbi.nlm.nih.gov/compound/61704 enrich_references.pubchem_compound
PubChem https://pubchem.ncbi.nlm.nih.gov/element/92 —
PubChem https://pubchem.ncbi.nlm.nih.gov/rest/pug_view/data/element/92/JSON —
wikidata.org https://www.wikidata.org/wiki/Q2153640 enrich_references.pubchem_identifier_url

Elementary flows

15
Flow Context Source Unit CFs
2906899d-6556-11dd-ad8b-0800200c9a66 Environmental → Air → Aircraft cruise height EF 3.1 kBq 1
4d9a8790-3ddd-11dd-8db1-0050c2490048 Environmental → Air → Ground level → Urban (>1000 people/square mile) EF 3.1 kBq 1
4d9a8790-3ddd-11dd-8db0-0050c2490048 Environmental → Air → Long-term EF 3.1 kBq 1
4d9a8790-3ddd-11dd-8db2-0050c2490048 Environmental → Air → Medium stack, <150 meters → Rural (<1000 people/square mile) EF 3.1 kBq 1
4d9a8790-3ddd-11dd-8daf-0050c2490048 Environmental → Air → Unknown EF 3.1 kBq 1
2906899c-6556-11dd-ad8b-0800200c9a66 Environmental → Ground → Agricultural EF 3.1 kBq 0
2906899e-6556-11dd-ad8b-0800200c9a66 Environmental → Ground → Non-agricultural EF 3.1 kBq 0
2906899f-6556-11dd-ad8b-0800200c9a66 Environmental → Ground → Unknown EF 3.1 kBq 0
dfe0cc3805b21e1cb9e999c11022fd1e5d2f8690 Environmental → Water → Lake bafu algorithm addition Bq 0
fe0acd60-3ddc-11dd-ae40-0050c2490048 Environmental → Water → Long-term EF 3.1 kBq 1
fe0acd60-3ddc-11dd-ae42-0050c2490048 Environmental → Water → Ocean EF 3.1 kBq 1
25afed1d23ff3fd538e109022b645893f8bb6d22 Environmental → Water → River bafu algorithm addition Bq 0
fe0acd60-3ddc-11dd-ae3f-0050c2490048 Environmental → Water → Surface water EF 3.1 kBq 1
af0bfb9a98eb22d8fbb6d345c5253ee9530cbf2b Environmental → Water → Unconfined aquifer ecoinvent algorithm addition kBq 0
fe0acd60-3ddc-11dd-ae41-0050c2490048 Environmental → Water → Unknown EF 3.1 kBq 1

History

Everything that changed this substance (50 changes)

Open the changes page

Full record

Flow object JSON 
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      "decay_modes": "IS=0.0054±0.5%; α=100%; SF=1.64e-9±2.2%; 28Mg=1.4e-11±0.3%; 24Ne+26Ne=9e-12±0.7%",
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      "isomeric_state": "",
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    }
  },
  "origin_qualifier": null,
  "parent_flow_object_id": null,
  "parent_intervention_id": null,
  "@type": [
    "https://w3id.org/chemrof/Isotope",
    "https://w3id.org/chemrof/Radionuclide"
  ]
}

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