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Phosphoric acid Quickview (CASRN 7664-38-2)

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 Phosphoric acid

File First On-Line: 08/01/1995; Last Significant Revision: 08/01/1995

Category (section)
Status
Last Revised
Oral RfD Assessment No data
Inhalation RfC Assessment On-line 08/01/1995
Carcinogenicity Assessment No data
Synonyms
  • Phosphoric acid
  • Orthophosphoric acid
  • Acide phosphorique [French]
  • Acido fosforico [Spanish]
  • Caswell No. 662
  • EPA Pesticide Chemical Code 076001
  • HSDB 1187
  • WC-Reiniger
  • 7664-38-2
Phosphoric acid Source Documents
Chronic Health Hazard Assessments for Noncarcinogenic Effects

Reference Dose for Chronic Oral Exposure (RfD)

Not Assessed under the IRIS Program.

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Reference Concentration for Chronic Inhalation Exposure (RfC)

Critical Effect
Point of Departure*
UF RfC
Bronchiolar fibrosis BMC10 (HEC): 3.4 mg/m3 300 1x10-2 mg/m3

* The Point of Departure listed serves as a basis from which the Inhalation RfC was derived. See Discussion of Conversion Factors and Assumptions for more details.

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Carcinogenicity Assessment for Lifetime Exposure

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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