|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Tributyl phosphate | CAS 126-73-8 | ||
| (CH3[CH2]3O)3PO | RTECS TC7700000 | ||
|
Synonyms & Trade Names Butyl phosphate, TBP, Tributyl ester of phosphoric acid, Tri-n-butyl phosphate |
DOT ID & Guide |
||
|
Exposure Limits |
NIOSH REL: TWA 0.2 ppm (2.5 mg/m3) | ||
| OSHA PEL†: TWA 5 mg/m3 | |||
| IDLH 30 ppm | Conversion 1 ppm = 10.89 mg/m3 | ||
|
Physical Description Colorless to pale-yellow, odorless liquid. |
|||
|
MW: 266.3 |
BP: 552°F (Decomposes) |
FRZ: -112°F |
Sol: 0.6% |
|
VP(77°F): 0.004 mmHg |
IP: ? |
|
Sp.Gr: 0.98 |
|
Fl.P(oc): 295°F |
UEL: ? |
LEL: ? |
|
| Class IIIB Combustible Liquid: Fl.P. at or above 200°F. | |||
|
Incompatibilities & Reactivities Alkalis, oxidizers, water, moist air |
|||
|
Measurement Methods NIOSH 5034 |
|
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: No recommendation |
First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash promptly Breathing: Respiratory support Swallow: Medical attention immediately |
|
Respirator Recommendations
NIOSH Up to 2 ppm: (APF = 10) Any supplied-air respirator Up to 5 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 10 ppm: (APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Up to 30 ppm: (APF = 2000) Any supplied-air respirator that has a full facepiece and is 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 (gas mask) with a chin-style, front- or back-mounted organic vapor canister having a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus |
|
| Exposure Routes inhalation, ingestion, skin and/or eye contact | |
| Symptoms Irritation eyes, skin, respiratory system, headache; nausea | |
|
Target Organs
Eyes, skin, respiratory system |
|
| See also: INTRODUCTION |