ICSC 0008 - TETRAETHYL LEAD

TETRAETHYL LEAD	ICSC: 0008 (November 2003)
Tetraethyl plumbane Lead tetraethyl TEL

CAS #: 78-00-2

UN #: 1649

EC Number: 201-075-4

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Above 93°C explosive vapour/air mixtures may be formed.	NO open flames. Above 93°C use a closed system and ventilation.	Use water spray, powder, foam, carbon dioxide. Combat fire from a sheltered position.

PREVENT GENERATION OF MISTS! STRICT HYGIENE! AVOID ALL CONTACT! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN! IN ALL CASES CONSULT A DOCTOR!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Convulsions. Dizziness. Headache. Vomiting. Weakness. Unconsciousness.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	MAY BE ABSORBED! Redness. Further see Inhalation.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention .
Eyes	Redness. Pain. Blurred vision.	Wear face shield or eye protection in combination with breathing protection.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Convulsions. Diarrhoea. Dizziness. Headache. Vomiting. Weakness. Unconsciousness.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Evacuate danger area! Consult an expert! Personal protection: complete protective clothing including self-contained breathing apparatus. Ventilation. Do NOT let this chemical enter the environment. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: I
STORAGE
Fireproof. Separated from strong oxidants and acids. Keep in the dark. Ventilation along the floor. Store in an area without drain or sewer access.
PACKAGING
Unbreakable packaging. Put breakable packaging into closed unbreakable container. Severe marine pollutant.

TETRAETHYL LEAD

ICSC: 0008

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS VISCOUS LIQUID WITH CHARACTERISTIC ODOUR. Physical dangers The vapour is heavier than air. Chemical dangers Decomposes on heating. This produces toxic fumes. Reacts violently with strong oxidants, acids and halogens. This generates fire and explosion hazard. Attacks rubber, some forms of plastic and coatings.	Formula: Pb(C₂H₅)₄ Molecular mass: 323.45 Decomposes at >110°C Melting point: -136.8°C Relative density (water = 1): 1.7 Solubility in water: very poor Vapour pressure, kPa at 20°C: 0.027 Relative vapour density (air = 1): 8.6 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00 Flash point: 93°C c.c. Auto-ignition temperature: ~110°C Explosive limits, vol% in air: 1.8-? Octanol/water partition coefficient as log Pow: 4.15

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS VISCOUS LIQUID WITH CHARACTERISTIC ODOUR.

Physical dangers
The vapour is heavier than air.

Chemical dangers
Decomposes on heating. This produces toxic fumes. Reacts violently with strong oxidants, acids and halogens. This generates fire and explosion hazard. Attacks rubber, some forms of plastic and coatings.

Formula: Pb(C₂H₅)₄
Molecular mass: 323.45
Decomposes at >110°C
Melting point: -136.8°C
Relative density (water = 1): 1.7
Solubility in water: very poor
Vapour pressure, kPa at 20°C: 0.027
Relative vapour density (air = 1): 8.6
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 93°C c.c.
Auto-ignition temperature: ~110°C
Explosive limits, vol% in air: 1.8-?
Octanol/water partition coefficient as log Pow: 4.15

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation, through the skin and by ingestion. Effects of short-term exposure The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the central nervous system. This may result in unconsciousness. Exposure at high levels could cause death. Medical observation is indicated.	Inhalation risk A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C. Effects of long-term or repeated exposure The substance may have effects on the central nervous system. May cause toxicity to human reproduction or development.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation, through the skin and by ingestion.

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. The substance may cause effects on the central nervous system. This may result in unconsciousness. Exposure at high levels could cause death. Medical observation is indicated.

Inhalation risk
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C.

Effects of long-term or repeated exposure
The substance may have effects on the central nervous system. May cause toxicity to human reproduction or development.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 0.1 mg/m³, as TWA; (skin); A4 (not classifiable as a human carcinogen). MAK: 0.05 mg/m³; peak limitation category: II(2); skin absorption (H); pregnancy risk group: B

ENVIRONMENT
The substance is very toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment. It is strongly advised not to let the chemical enter into the environment.

NOTES
Tetraethyl lead used as an anti-knock compound in gasoline also contains ethylene dibromide and ethylene dichloride as impurities. Depending on the degree of exposure, periodic medical examination is suggested. The relation between odour and the occupational exposure limit cannot be indicated. Do NOT take working clothes home.

ADDITIONAL INFORMATION

EC Classification
Symbol: T+, N; R: 61-26/27/28-33-50/53-62; S: 53-45-60-61; Note: A, E, 1 for preparations

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    See Also:
       Toxicological Abbreviations