ICSC 1097 - 4-METHOXYPHENOL

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4-METHOXYPHENOL	ICSC: 1097 (October 2004)
Hydroquinone monomethyl ether Mequinol p-Hydroxyanisole

CAS #: 150-76-5

EC Number: 205-769-8

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Finely dispersed particles form explosive mixtures in air.	NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust.	Use water spray, powder, alcohol-resistant foam, carbon dioxide.

PREVENT DISPERSION OF DUST!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation		Use local exhaust or breathing protection.	Fresh air, rest.
Skin	Redness. Burning sensation. Pain.	Protective gloves. Protective clothing.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes	Redness. Pain.	Wear safety goggles.	First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
Ingestion		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: particulate filter respirator adapted to the airborne concentration of the substance. Sweep spilled substance into covered sealable 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, strong bases, acid anhydrides and acid chlorides.
PACKAGING

4-METHOXYPHENOL

ICSC: 1097

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance WHITE-TO-TAN SOLID IN VARIOUS FORMS WITH CHARACTERISTIC ODOUR. Physical dangers Dust explosion possible if in powder or granular form, mixed with air. Chemical dangers Reacts with strong oxidants, strong bases, acid anhydrides and acid chlorides. The solution in water is a weak acid.	Formula: C₇H₈O₂ / OH(C₆H₄)OCH₃ Molecular mass: 124.1 Boiling point: 243°C Melting point: 57°C Density: 1.6 g/cm³ Solubility in water, g/100ml at 25°C: 4 Relative vapour density (air = 1): 4.3 Flash point: 132°C o.c. Auto-ignition temperature: 421°C Octanol/water partition coefficient as log Pow: 1.58

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE-TO-TAN SOLID IN VARIOUS FORMS WITH CHARACTERISTIC ODOUR.

Physical dangers
Dust explosion possible if in powder or granular form, mixed with air.

Chemical dangers
Reacts with strong oxidants, strong bases, acid anhydrides and acid chlorides. The solution in water is a weak acid.

Formula: C₇H₈O₂ / OH(C₆H₄)OCH₃
Molecular mass: 124.1
Boiling point: 243°C
Melting point: 57°C
Density: 1.6 g/cm³
Solubility in water, g/100ml at 25°C: 4
Relative vapour density (air = 1): 4.3
Flash point: 132°C o.c.
Auto-ignition temperature: 421°C
Octanol/water partition coefficient as log Pow: 1.58

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body 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 may cause skin sensitization. The substance may have effects on the skin. This may result in depigmentation.

EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body 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 may cause skin sensitization. The substance may have effects on the skin. This may result in depigmentation.

OCCUPATIONAL EXPOSURE LIMITS
TLV: 5 mg/m³, as TWA

ENVIRONMENT

NOTES
Do NOT take working clothes home.

ADDITIONAL INFORMATION

EC Classification
Symbol: Xn; R: 22-36-43; S: (2)-24/25-26-37/39-46

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