ICSC 1068 - p-tert-BUTYLTOLUENE

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p-tert-BUTYLTOLUENE	ICSC: 1068 (April 2007)
1-Methyl-4-tert-butylbenzene 4-tert-Butyltoluene p-TBT

CAS #: 98-51-1

UN #: 2667

EC Number: 202-675-9

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Above 63°C explosive vapour/air mixtures may be formed.	NO open flames. Above 63°C use a closed system and ventilation.	Use water spray, alcohol-resistant foam, dry powder, carbon dioxide.


	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat. Metallic taste. Laboured breathing. Nausea. Dizziness. Headache. Tremor. Weakness.	Use ventilation, local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Refer immediately for medical attention.
Skin	Redness.	Protective gloves.	Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Wear safety spectacles or eye protection in combination with breathing protection.	Rinse with plenty of water for several minutes (remove contact lenses if easily possible).
Ingestion	Confusion. Convulsions. See Inhalation.	Do not eat, drink, or smoke during work.	Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: self-contained breathing apparatus. Do NOT let this chemical enter the environment. Ventilation. 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 Combustible liquid Fatal if inhaled Harmful if swallowed Causes eye irritation May cause damage to central nervous system through prolonged or repeated exposure if inhaled May cause respiratory irritation Toxic to aquatic life Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: III
STORAGE
Separated from food and feedstuffs and strong oxidants. Well closed. Keep in a well-ventilated room. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing.
PACKAGING
Do not transport with food and feedstuffs. Marine pollutant.

p-tert-BUTYLTOLUENE

ICSC: 1068

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS-TO-YELLOW LIQUID WITH CHARACTERISTIC ODOUR. Physical dangers As a result of flow, agitation, etc., electrostatic charges can be generated. Chemical dangers Decomposes on burning. This produces toxic fumes. Reacts with strong oxidants. This generates fire and explosion hazard.	Formula: C₁₁H₁₆/ CH₃C₆H₄C(CH₃)₃ Molecular mass: 148.3 Boiling point at 101.3kPa: 193°C Melting point: -62.5°C Relative density (water = 1): 0.86 Solubility in water, g/100ml at 20°C: 0.06 (very poor) Vapour pressure, Pa at 20°C: 80 Relative vapour density (air = 1): 5.1 Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00 Flash point: 63 °C c.c. Auto-ignition temperature: 510°C Explosive limits, vol% in air: 0.7-7.1 Octanol/water partition coefficient as log Pow: 4.35

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-YELLOW LIQUID WITH CHARACTERISTIC ODOUR.

Physical dangers
As a result of flow, agitation, etc., electrostatic charges can be generated.

Chemical dangers
Decomposes on burning. This produces toxic fumes. Reacts with strong oxidants. This generates fire and explosion hazard.

Formula: C₁₁H₁₆/ CH₃C₆H₄C(CH₃)₃
Molecular mass: 148.3
Boiling point at 101.3kPa: 193°C
Melting point: -62.5°C
Relative density (water = 1): 0.86
Solubility in water, g/100ml at 20°C: 0.06 (very poor)
Vapour pressure, Pa at 20°C: 80
Relative vapour density (air = 1): 5.1
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.00
Flash point: 63 °C c.c.
Auto-ignition temperature: 510°C
Explosive limits, vol% in air: 0.7-7.1
Octanol/water partition coefficient as log Pow: 4.35

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation and by ingestion. Effects of short-term exposure The substance is irritating to the eyes and respiratory tract. Exposure far above the OEL could cause lowering of consciousness.	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 tissue lesions.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes and respiratory tract. Exposure far above the OEL could cause lowering of consciousness.

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 tissue lesions.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 1 ppm as TWA

ENVIRONMENT
The substance is toxic to aquatic organisms. Bioaccumulation of this chemical may occur in aquatic organisms. It is strongly advised not to let the chemical enter into the environment.

NOTES
The odour warning when the exposure limit value is exceeded is insufficient.

ADDITIONAL INFORMATION

EC Classification

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