Tetraethyl plumbane
Lead tetraethyl
TEL
Pb(C2H5)4
Molecular mass: 323.45
ICSC # 0008
CAS # 78-00-2
RTECS # TP4550000
UN # 1649
EC # 082-002-00-1
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
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NO open flames.
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Powder, water spray, foam, carbon dioxide.
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Explosion
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Above 93°C explosive vapour/air mixtures may be formed.
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Above 93°C use a closed system, ventilation.
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Combat fire out of sheltered position.
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Exposure
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PREVENT GENERATION OF MISTS!
STRICT HYGIENE!
AVOID Exposure OF (PREGNANT) WOMEN!
AVOID Exposure OF ADOLESCENTS AND CHILDREN!
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IN ALL CASES CONSULT A DOCTOR!
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•Inhalation
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Convulsions.
Dizziness.
Headache.
Vomiting.
Weakness.
Unconsciousness.
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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MAY BE ABSORBED!
Redness.
(Further see Inhalation).
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse and then wash skin with water and soap.
Refer for medical attention.
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•Eyes
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Redness.
Pain.
Blurred vision.
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Face shield,
or eye protection in combination with breathing protection.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Convulsions.
Diarrhoea.
Dizziness.
Headache.
Vomiting.
Weakness.
Unconsciousness.
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
Give a slurry of activated charcoal in water to drink.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Evacuate danger area!
Consult an expert!
Ventilation.
Collect leaking liquid in sealable containers.
Absorb remaining liquid in sand or inert absorbent and remove to safe place.
(Extra personal protection: complete protective clothing including self-contained breathing apparatus.)
Do NOT let this chemical enter the environment.
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Fireproof.
Separated from
strong oxidants,
acids.
Keep in the dark.
Ventilation along the floor.
Store in an area without drain or sewer access.
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Unbreakable packaging; put breakable packaging into closed unbreakable container.
Severe marine pollutant.
Note: A, E, for preparations: Note 1
T+ symbol
N symbol
R: 61-26/27/28-33-50/53-62
S: 53-45-60-61
UN Hazard Class: 6.1
UN Packing Group: I
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Important Data
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Physical State; Appearance:
COLOURLESS
VISCOUS LIQUID
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
The vapour is heavier than air.
Chemical Dangers:
The substance decomposes
on heating
producing
toxic fumes
.
Reacts
violently with
strong oxidants
,
acids
,
halogens
causing fire and explosion hazard.
Attacks rubber, some forms of plastic and coating.
Occupational Exposure Limits:
TLV: (as lead) 0.1 mg/m3 (skin); A4; (ACGIH 2003).
MAK: (as lead) 0.05 mg/m3 skin absorption (H);
Peak limitation category: II(2); Pregnancy risk group: D;
(DFG 2007).
OSHA PEL: TWA 0.075 mg/m3 skin
NIOSH REL: TWA 0.075 mg/m3 skin
NIOSH IDLH: 40 mg/m3 (as Pb) See: 78002
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation,
through the skin
and
by ingestion.
Inhalation Risk:
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
The substance
is irritating to
the eyes
,
the skin
and
the respiratory tract
.
The substance may cause effects on the
central nervous system
, resulting in
unconsciousness
.
Exposure at high levels may result in death.
Medical observation is indicated.
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.
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Physical
Properties
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Decomposes at >110 °C
mel
Melting point: -136.8°C
Relative density (water = 1): 1.7
Solubility in water:
very poor
Vapour pressure, kPa at 20°C: 0.027
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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: above 110°C
Explosive limits, vol% in air: 1.8-?
Octanol/water partition coefficient as log Pow: 4.15
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Environmental
Data
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The substance is very toxic to aquatic organisms.
The substance may cause long-term effects in the aquatic environment.
It is strongly advised that this substance does not enter the environment.
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N O T E S
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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.
Transport Emergency Card: TEC (R)-61S1649
NFPA Code: H3; F2; R3;
Card has been partially updated in January 2008: see Storage, Physical Properties.
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ADDITIONAL INFORMATION
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ICSC: 0008
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TETRAETHYL LEAD
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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