ICSC 0008 - TETRAETHYL LEAD

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TETRAETHYL LEAD	ICSC: 0008 (April 2024)
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! IN ALL CASES CONSULT A DOCTOR!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Headache. Dizziness. Weakness. Vomiting. Convulsions. Unconsciousness. Symptoms may be delayed. See Notes.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Refer immediately 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 immediately for medical attention .
Eyes	Redness.	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	Headache. Dizziness. Weakness. Vomiting. Convulsions. Diarrhoea. Unconsciousness.	Do not eat, drink, or smoke during work. Wash hands before eating.	Rinse mouth. Refer immediately 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 liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations.	According to UN GHS Criteria Combustible liquid Fatal if swallowed, in contact with skin or if inhaled Suspected of damaging fertility or the unborn child Causes damage to nervous system May cause damage to nervous system through prolonged or repeated exposure Very toxic to aquatic life with long lasting effects Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: I
STORAGE
Fireproof. Store only in original container. Well closed. Separated from strong oxidants and acids. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
PACKAGING
Put breakable packaging into closed unbreakable container. Do not transport with food and feedstuffs. 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 of lead. 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 Viscosity: 0.44 mm²/s at 20°C

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 of lead. 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
Viscosity: 0.44 mm²/s at 20°C

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 may cause effects on the central nervous system. This may result in nervous disorders and unconsciousness. Exposure at high levels could cause death. The effects may be delayed. 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. This may result in mental and memory disturbances, nervous system impairment, peripheral nerve damage and cardiac disorders. 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 may cause effects on the central nervous system. This may result in nervous disorders and unconsciousness. Exposure at high levels could cause death. The effects may be delayed. 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. This may result in mental and memory disturbances, nervous system impairment, peripheral nerve damage and cardiac disorders. 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: 0.004 mg/m³; peak limitation category: II(1); skin absorption (H); pregnancy risk group: A; germ cell mutagen group: 3A; carcinogen category: 4

ENVIRONMENT
The substance is very toxic to aquatic organisms. Bioaccumulation of this chemical may occur along the food chain. 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
Do NOT take working clothes home. Depending on the degree of exposure, periodic medical examination is suggested. The relation between odour and the occupational exposure limit cannot be indicated. Tetraethyl lead used as an anti-knock compound in gasoline also contains ethylene dibromide and ethylene dichloride as impurities.

ADDITIONAL INFORMATION

EC Classification

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