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Tetraethyl lead (as Pb) |
CAS 78-00-2 | ||
Pb(C2H5)4 |
RTECS TP4550000 | ||
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Synonyms & Trade Names Lead tetraethyl, TEL, Tetraethylplumbane |
DOT ID & Guide 1649 131 |
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Exposure
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NIOSH REL: TWA 0.075 mg/m3 [skin] | ||
| OSHA PEL: TWA 0.075 mg/m3 [skin] | |||
| IDLH 40 mg/m3 (as Pb) See: 78002 | Conversion | ||
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Physical Description Colorless liquid (unless dyed red, orange, or blue) with a pleasant, sweet odor. [Note: Main usage is in anti-knock additives for gasoline.] |
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MW: 323.5 |
BP: 228°F (Decomposes) |
FRZ: -202°F |
Sol: 0.00002% |
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VP: 0.2 mmHg |
IP: 11.10 eV |
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Sp.Gr: 1.65 |
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Fl.P: 200°F |
UEL: ? |
LEL: 1.8% |
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| Class IIIB Combustible Liquid: Fl.P. at or above 200°F. | |||
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Incompatibilities & Reactivities Strong oxidizers, sulfuryl chloride, rust, potassium permanganate [Note: Decomposes slowly at room temperature and more rapidly at higher temperatures.] |
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Measurement Methods NIOSH 2533 See: NMAM or OSHA Methods |
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Personal Protection & Sanitation (See protection) Skin: Prevent skin contact (>0.1%) Eyes: Prevent eye contact Wash skin: When contaminated (>0.1%) Remove: When wet or contaminated (>0.1%) Change: Daily Provide: Quick drench (>0.1%) |
First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash immediately Breathing: Respiratory support Swallow: Medical attention immediately |
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Important additional information about respirator selection Respirator Recommendations NIOSH/OSHA Up to 0.75 mg/m3: (APF = 10) Any supplied-air respirator Up to 1.875 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 3.75 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 40 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/Any appropriate escape-type, self-contained breathing apparatus |
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| Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact | |
| Symptoms Insomnia, lassitude (weakness, exhaustion), anxiety; tremor, hyper-reflexia, spasticity; bradycardia, hypotension, hypothermia, pallor, nausea, anorexia, weight loss; confusion, hallucinations, psychosis, mania, convulsions, coma; eye irritation | |
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Target Organs
central nervous system, cardiovascular system, kidneys, eyes |
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| See also: INTRODUCTION See ICSC CARD: 0008 See MEDICAL TESTS: 0224 |