TEPP
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CAS
107-49-3
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[(CH3CH2O)2PO]2O
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RTECS
UX6825000
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Synonyms & Trade Names
Ethyl pyrophosphate, Tetraethyl pyrophosphate, Tetron®
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DOT ID & Guide
2783 / 152 (solid)
3018 / 152 (liquid)
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Exposure
Limits
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NIOSH REL: TWA 0.05 mg/m3 [skin]
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OSHA PEL: TWA 0.05 mg/m3 [skin]
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IDLH
5 mg/m3
See: 107493
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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
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BP: Decomposes
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FRZ: 32°F
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Sol: Miscible
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VP: 0.0002 mmHg
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IP: ?
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Sp.Gr: 1.19
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Fl.P: NA
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UEL: NA
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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
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation
Provide: Eyewash, Quick drench
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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 an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters./Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
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Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
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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
See ICSC CARD: 1158 See MEDICAL TESTS: 0221
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