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Tetraethyl lead (as Pb)																				Related Pages
Synonyms & Trade Names
			Lead tetraethyl, TEL, Tetraethylplumbane
CAS No.
			78-00-2
	RTECS No.
			TP4550000
	DOT ID & Guide
			1649 131

FormulaPb(C2H5)4
	Conversion
	IDLH
			40 mg/m3 (as Pb)See: 78002

Exposure Limits
			NIOSH RELTWA 0.075 mg/m3 [skin]
					OSHA PEL TWA 0.075 mg/m3 [skin]
	Measurement Methods
			**NIOSH** 2533
					
					See: NMAM or OSHA Methods
										
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.]													
										
Molecular Weight323.5	
	Boiling Point228°F (Decomposes)
	Freezing Point-202°F
	Solubility0.00002%
	Vapor Pressure0.2 mmHg
	Ionization Potential11.10 eV											
Specific Gravity1.65	
	Flash Point200°F
	Upper Explosive Limit?
	Lower Explosive Limit1.8%
Class IIIB Combustible Liquid: Fl.P. at or above 200°F.
Incompatibilities & Reactivities
			Strong oxidizers, sulfuryl chloride, rust, potassium permanganate
					[Note: Decomposes slowly at room temperature and more rapidly at higher temperatures.]
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
Target Organs
			central nervous system, cardiovascular system, kidneys, eyes
										
Personal Protection/Sanitation
			(See protection codes) **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
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 canisterAny appropriate escape-type, self-contained breathing apparatus
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0008
					  MEDICAL TESTS: 0224

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
First Aid Procedures Follow NIOSH Facebook
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