# NIOSH Pocket Guide to Chemical Hazards
Titanium dioxide | CAS 13463-67-7
TiO2 | RTECS XR2275000
Synonyms & Trade Names Rutile, Titanium oxide, Titanium peroxide | DOT ID & Guide
Exposure Limits | NIOSH REL: Ca See Appendix A
OSHA PEL†: TWA 15 mg/m3
IDLH Ca [5000 mg/m3] | Conversion
Physical Description White, odorless powder.
MW: 79.9 | BP: 4532-5432°F | MLT: 3326-3362°F | Sol: Insoluble
VP: 0 mmHg (approx) | IP: NA |  | Sp.Gr: 4.26
Fl.P: NA | UEL: NA | LEL: NA |
Noncombustible Solid
Incompatibilities & Reactivities None reported
Measurement Methods NIOSH S385 (II-3)
Personal Protection & Sanitation Skin: No recommendation Eyes: No recommendation Wash skin: No recommendation Remove: No recommendation Change: Daily | First Aid (See procedures) Breathing: Respiratory support
Respirator Recommendations NIOSH At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation
Symptoms Lung fibrosis; [potential occupational carcinogen]
Target Organs respiratory system Cancer Site [in animals: lung tumors]
See also: INTRODUCTION