NIOSH Pocket Guide to Chemical Hazards

Triphenyl phosphate CAS 115-86-6
(C6H5O)3PO RTECS TC8400000
Synonyms & Trade Names
Phenyl phosphate, TPP, Triphenyl ester of phosphoric acid
DOT ID & Guide
Exposure
Limits
NIOSH REL: TWA 3 mg/m3
OSHA PEL: TWA 3 mg/m3
IDLH 1000 mg/m3 Conversion
Physical Description
Colorless, crystalline powder with a phenol-like odor.
MW: 326.3
BP: 776°F
MLT: 120°F
Sol(129°F): 0.002%
VP(380°F): 1 mmHg
IP: ?

Sp.Gr: 1.29
Fl.P: 428°F
UEL: ?
LEL: ?

Combustible Solid
Incompatibilities & Reactivities
None reported
Measurement Methods
NIOSH 5038
Personal Protection & Sanitation
Skin: No recommendation
Eyes: No recommendation
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation

First Aid (See procedures)


Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations NIOSH/OSHA
Up to 15 mg/m3: (APF = 5) Any dust respirator
Up to 30 mg/m3: (APF = 10) Any air-purifying respirator with a high-efficiency particulate filter/(APF = 10) Any dust respirator except single-use and quarter-mask respirators/(APF = 10) Any supplied-air respirator
Up to 75 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode/(APF = 25) Any powered, air-purifying respirator with a dust and mist filter
Up to 150 mg/m3: (APF = 50) Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter/(APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode/(APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and a high-efficiency particulate filter/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece
Up to 1000 mg/m3: (APF = 1000) Any supplied-air respirator operated in a pressure-demand or other positive-pressure mode
Emergency or planned entry into unknown concentrations or IDLH conditions: (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, ingestion
Symptoms Minor changes in blood enzymes; in animals: muscle weakness, paralysis
Target Organs Blood, peripheral nervous system
See also: INTRODUCTION