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Thallium oxide Quickview (CASRN 1314-32-5)

Health assessment information on a chemical substance is included in IRIS only after a comprehensive review of toxicity data by U.S. EPA health scientists from several Program Offices, Regional Offices, and the Office of Research and Development.

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Status of Data for Thallium oxide

File First On-Line: 01/31/1987; Last Significant Revision: 09/30/2009

Category (section)
Status
Last Revised
Oral RfD Assessment Discussion 09/30/2009
Inhalation RfC Assessment Discussion 09/30/2009
Carcinogenicity Assessment On-line 09/30/2009
Synonyms
  • Thallium(III) oxide
  • 1314-32-5
  • Dithallium trioxide
  • Thallic oxide
  • Thallium(3+) oxide
  • Thallium oxide
  • Thallium peroxide
  • Thallium sesquioxide
Thallium oxide Source Documents
Revision History
Date Section Description
09/30/2009 All Name of file changed from thallic oxide to thallium oxide.
Chronic Health Hazard Assessments for Noncarcinogenic Effects

Reference Dose for Chronic Oral Exposure (RfD)

Information reviewed but value not estimated. See IRIS Summary.

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Reference Concentration for Chronic Inhalation Exposure (RfC)

Information reviewed but value not estimated. See IRIS Summary.

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Carcinogenicity Assessment for Lifetime Exposure
  • Weight-of-Evidence Characterization
    • Inadequate information to assess carcinogenic potential
  • Weight-of-Evidence Narrative:
    • Under the Guidelines for Carcinogen Risk Assessment (U.S. EPA, 2005a), the database for thallium and compounds provides "inadequate information to assess carcinogenic potential."
    • This may be a synopsis of the full weight-of-evidence narrative. See IRIS Summary.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure

  • Not Assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure

  • Not Assessed under the IRIS Program.

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