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| TEPP | CAS 107-49-3 | ||
| [(CH3CH2O)2PO]2O | RTECS UX6825000 | ||
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Synonyms & Trade Names Ethyl pyrophosphate, Tetraethyl pyrophosphate, Tetron® |
DOT ID & Guide 2783 152 3018 152 (liquid) |
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Exposure Limits |
NIOSH REL: TWA 0.05 mg/m3 [skin] | ||
| OSHA PEL: TWA 0.05 mg/m3 [skin] | |||
| IDLH 5 mg/m3 | Conversion 1 ppm = 11.87 mg/m3 | ||
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Physical Description Colorless to amber liquid with a faint, fruity odor. [insecticide] [Note: A solid below 32°F.] |
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MW: 290.2 |
BP: Decomposes |
FRZ: 32°F |
Sol: Miscible |
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VP: 0.0002 mmHg |
IP: ? |
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Sp.Gr: 1.19 |
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Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible Liquid | |||
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Incompatibilities & Reactivities Strong oxidizers, alkalis, water [Note: Hydrolyzes quickly in water to form pyrophosphoric acid.] |
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Measurement Methods NIOSH 2504 |
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Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: No recommendation Provide: Eyewash, Quick drench |
First Aid (See procedures) Eye: Irrigate immediately Skin: Water flush immediately Breathing: Respiratory support Swallow: Medical attention immediately |
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Respirator Recommendations
NIOSH/OSHA Up to 0.5 mg/m3: (APF = 10) Any supplied-air respirator Up to 1.25 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 2.5 mg/m3: (APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Up to 5 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 (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 |
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| Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact | |
| Symptoms Eye pain, blurred vision, lacrimation (discharge of tears); rhinorrhea (discharge of thin mucus); headache, chest tightness, cyanosis; anorexia, nausea, vomiting, diarrhea; lassitude (weakness, exhaustion), twitching, paralysis, Cheyne-Stokes respiration, convulsions; low blood pressure, cardiac irregularities; sweating | |
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Target Organs
Eyes, respiratory system, central nervous system, cardiovascular system, gastrointestinal tract, blood cholinesterase |
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| See also: INTRODUCTION |