International Chemical Safety Cards

TETRAMETHYL LEAD

ICSC: 0200

Tetramethyl plumbane
Pb(CH₃)₄ / C₄H₁₂Pb
Molecular mass: 267.4

ICSC #    0200
CAS #     75-74-1
RTECS # TP4725000
UN #        1649
EC #         082-002-00-1
April 21, 2005 Peer reviewed

TYPES OF HAZARD/ EXPOSURE	ACUTE HAZARDS/ SYMPTOMS	PREVENTION	FIRST AID/ FIRE FIGHTING
FIRE	Flammable. Gives off irritating or toxic fumes (or gases) in a fire.	NO open flames, NO sparks, and NO smoking.	Powder, water spray, foam, carbon dioxide.
EXPLOSION	Above 37.8°C explosive vapour/air mixtures may be formed.	Above 37.8°C use a closed system, ventilation, and explosion-proof electrical equipment.	In case of fire: keep drums, etc., cool by spraying with water. Combat fire from a sheltered position.

EXPOSURE		STRICT HYGIENE!	IN ALL CASES CONSULT A DOCTOR!
•INHALATION	Convulsions. Dizziness. Headache. Nausea. Unconsciousness. Symptoms may be delayed (see Notes).	Ventilation, local exhaust, or breathing protection.	Fresh air, rest. Refer for medical attention.
•SKIN	MAY BE ABSORBED! (Further see Inhalation).	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
•EYES		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 take to a doctor.
•INGESTION	Abdominal pain. Burning sensation. Diarrhoea. Dullness. (Further see Inhalation).	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

STORAGE

PACKAGING & LABELLING

Evacuate danger area! Personal protection: complete protective clothing including self-contained breathing apparatus. Consult an expert! Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent and remove to safe place. Do NOT let this chemical enter the environment.

Fireproof. Separated from strong oxidants, strong acids, food and feedstuffs. Cool. Well closed. Store in an area without drain or sewer access.

Unbreakable packaging; put breakable packaging into closed unbreakable container. Do not transport with food and feedstuffs.
Marine pollutant.
Note: A and E
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

SEE IMPORTANT INFORMATION ON BACK

ICSC: 0200

Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

International Chemical Safety Cards

TETRAMETHYL LEAD

ICSC: 0200

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PHYSICAL STATE; APPEARANCE:
COLOURLESS LIQUID , WITH CHARACTERISTIC ODOUR.

PHYSICAL DANGERS:
The vapour is heavier than air.

CHEMICAL DANGERS:
May explode on heating above 90°C. The substance decomposes on burning producing toxic fumes including lead, lead oxides. Reacts violently with strong oxidants . Reacts with strong acids and violently with nitric acid. Attacks rubber.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (as lead) 0.15 mg/m³ as TWA; (skin); BEI issued; (ACGIH 2005).
MAK: 0.05 mg/m³;
Peak limitation category: II(2);
skin absorption (H);
Pregnancy risk group: D;
(DFG 2004).
OSHA PEL: TWA 0.075 mg/m³ skin
NIOSH REL: TWA 0.075 mg/m³ skin
NIOSH IDLH: 40 mg/m³ (as Pb)

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 very quickly on evaporation of this substance at 20°C.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance may cause effects on the central nervous system , resulting in brain disorders. The effects may be delayed. Exposure may result in death. Medical observation is indicated.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:

PHYSICAL
PROPERTIES

Boiling point at 1.33 kPa: 110°C
Melting point: -27.5°C
Relative density (water = 1): 2.0
Solubility in water: none
Vapour pressure, kPa at 20°C: 3.0
Relative vapour density (air = 1): 6.5

Relative density of the vapour/air-mixture at 20°C (air = 1): 1.23
Flash point: 37.8°C c.c.
Auto-ignition temperature: 254°C
Explosive limits, vol% in air: 1.8-?
Octanol/water partition coefficient as log Pow: 6.2

ENVIRONMENTAL
DATA

The substance is very toxic to aquatic organisms. Bioaccumulation of this chemical may occur along the food chain, for example in molluscs and fish.

N O T E S

Commercial products are impure, coloured red, orange or blue, with added stabilizer (1,2-dichloroethane, toluene). 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: H 3; F 3; R 3;

ADDITIONAL INFORMATION

ICSC: 0200	TETRAMETHYL LEAD
(C) IPCS, CEC, 1994

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.