ICSC 0841 - BUTYLATED HYDROXYTOLUENE

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BUTYLATED HYDROXYTOLUENE	ICSC: 0841 (March 1999)
2,6-Di-tert-butyl-4-methylphenol 2,6-Di-tert-butyl-p-cresol BHT

CAS #: 128-37-0

EC Number: 204-881-4

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible.	NO open flames.	Use water spray, powder, foam, carbon dioxide. In case of fire: keep drums, etc., cool by spraying with water.

PREVENT DISPERSION OF DUST!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation	Cough. Sore throat.	Use local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin	Redness.	Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Wear safety spectacles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion	Abdominal pain. Confusion. Dizziness. Nausea. Vomiting.	Do not eat, drink, or smoke during work.	Rinse mouth. Rest. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. Carefully collect remainder. Then store and dispose of according to local regulations.	According to UN GHS Criteria Transportation UN Classification
STORAGE
Separated from strong oxidants and strong bases. Well closed.
PACKAGING

BUTYLATED HYDROXYTOLUENE

ICSC: 0841

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS-TO-PALE-YELLOW CRYSTALS OR POWDER. Physical dangers Chemical dangers Decomposes on burning. Decomposes on contact with oxidizing materials.	Formula: C₁₅H₂₄O / C₆H₂(OH)(CH₃)(C(CH₃)₃)₂ Molecular mass: 220.34 Boiling point: 265°C Melting point: 70°C Density: 1.03-1.05 g/cm³ Solubility in water, g/100ml at 25°C: 0.00006 Vapour pressure, Pa at 20°C: 1.3 Relative vapour density (air = 1): 7.6 Flash point: 127°C c.c. Octanol/water partition coefficient as log Pow: 5.1

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-PALE-YELLOW CRYSTALS OR POWDER.

Physical dangers

Chemical dangers
Decomposes on burning. Decomposes on contact with oxidizing materials.

Formula: C₁₅H₂₄O / C₆H₂(OH)(CH₃)(C(CH₃)₃)₂
Molecular mass: 220.34
Boiling point: 265°C
Melting point: 70°C
Density: 1.03-1.05 g/cm³
Solubility in water, g/100ml at 25°C: 0.00006
Vapour pressure, Pa at 20°C: 1.3
Relative vapour density (air = 1): 7.6
Flash point: 127°C c.c.
Octanol/water partition coefficient as log Pow: 5.1

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. Effects of short-term exposure The substance is irritating to the eyes and skin.	Inhalation risk A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20°C. Effects of long-term or repeated exposure Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the liver.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is irritating to the eyes and skin.

Inhalation risk
A harmful contamination of the air will not or will only very slowly be reached on evaporation of this substance at 20°C.

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. The substance may have effects on the liver.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 2 mg/m³, as TWA; A4 (not classifiable as a human carcinogen). MAK: (inhalable fraction): 10 mg/m³; peak limitation category: II(4); carcinogen category: 4; pregnancy risk group: C

ENVIRONMENT
The substance is harmful to aquatic organisms.

NOTES

ADDITIONAL INFORMATION

EC Classification

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