IRIS

Tert-Butanol

CASRN 75-65-0

  • Status: Tert-Butanol is in step 4 at this time.

IRIS Toxicological Review of tert-Butyl Alcohol (tert-Butanol) (Preliminary Assessment Materials)

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Overview

In August 2013, EPA released the draft literature searches and associated search strategies, evidence tables, and exposure response arrays for TBA to obtain input from stakeholders and the public prior to developing the draft IRIS assessment. Specifically, EPA was interested in comments on the following:
  • Draft literature search strategies
    • The approach for identifying studies
    • The screening process for selecting pertinent studies
    • The resulting list of pertinent studies
  • Preliminary evidence tables
    • The process for selecting studies to include in evidence tables
    • The quality of the studies in the evidence tables
The literature search strategy, which describes the processes for identifying scientific literature, contains the studies that EPA considered and selected to include in the evidence tables. The preliminary evidence tables and exposure-response arrays present the key study data in a standardized format. The evidence tables summarize the available critical scientific literature. The exposure-response figures provide a graphical representation of the responses at different levels of exposure for each study in the evidence table.

Citation

U.S. EPA. IRIS Toxicological Review of tert-Butyl Alcohol (tert-Butanol) (Preliminary Assessment Materials). U.S. Environmental Protection Agency, Washington, DC, EPA/635/R-13/107, 2013.

Contact

Janice S. Lee,  Ph:  919-541-9458,  Email: lee.janices@epa.gov

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Background

Tert-butyl alcohol (TBA) is used as a solvent; as a denaturant for ethanol and several other alcohols; in the manufacture of flotation agents, fruit essences, and perfumes; as an octane booster in gasoline; as a dehydrating agent; and as a chemical intermediate in the manufacture of methyl methacrylate. TBA's production for industrial uses may result in its direct release to the environment through various waste streams. TBA is also a likely degradation product of methyl tert-butyl ether (MTBE). Probable routes of human exposure to TBA include inhalation, ingestion, and skin or eye contact.

Additional Information

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Download(s)

This download(s) is distributed solely for the purpose of pre-dissemination peer review under applicable information quality guidelines. It has not been formally disseminated by EPA. It does not represent and should not be construed to represent any Agency determination or policy.

Federal Register Notices

Docket

Comments on the assessment may be submitted and reviewed using the Docket ID EPA-HQ-ORD-2013-0111

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