ICSC 1356 - 3,5-XYLENOL

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3,5-XYLENOL	ICSC: 1356 (February 2000)
3,5-Dimethylphenol 1-Hydroxy-3,5-dimethylbenzene

CAS #: 108-68-9

UN #: 2261

EC Number: 203-606-5

	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	Cough. Dizziness. Headache.	Use local exhaust or breathing protection.	Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
Skin	MAY BE ABSORBED! Burning sensation. Skin burns.	Protective gloves. Protective clothing.	Wear protective gloves when administering first aid. Rinse and then wash skin with water and soap. Refer for medical attention .
Eyes	Redness. Pain. Severe deep burns.	Wear safety goggles, 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 refer for medical attention.
Ingestion	Burning sensation. Abdominal pain. Nausea. Vomiting. Diarrhoea. Dizziness. Headache. Shock or collapse.	Do not eat, drink, or smoke during work.	Rest. Do NOT induce vomiting. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT let this chemical enter the environment. Sweep spilled substance into covered sealable containers.	According to UN GHS Criteria Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: II
STORAGE
Separated from acid anhydrides, acid chlorides, bases and oxidants.
PACKAGING
Do not transport with food and feedstuffs. Marine pollutant.

3,5-XYLENOL

ICSC: 1356

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance WHITE-TO-YELLOW CRYSTALS WITH CHARACTERISTIC ODOUR. Physical dangers Dust explosion possible if in powder or granular form, mixed with air. Chemical dangers Reacts with acid anhydrides, acid chlorides, bases and oxidants.	Formula: C₈H₁₀O / 3,5-(CH₃)₂C₆H₃OH Molecular mass: 122.2 Boiling point: 219°C Melting point: 64°C Density: 0.97 g/cm³ Solubility in water, g/100ml at 25°C: 0.5 Vapour pressure, Pa at 25°C: 5 Relative vapour density (air = 1): 4.2 Flash point: 80°C c.c. Explosive limits, vol% in air: 1.4-? Octanol/water partition coefficient as log Pow: 2.35

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE-TO-YELLOW CRYSTALS WITH CHARACTERISTIC ODOUR.

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

Chemical dangers
Reacts with acid anhydrides, acid chlorides, bases and oxidants.

Formula: C₈H₁₀O / 3,5-(CH₃)₂C₆H₃OH
Molecular mass: 122.2
Boiling point: 219°C
Melting point: 64°C
Density: 0.97 g/cm³
Solubility in water, g/100ml at 25°C: 0.5
Vapour pressure, Pa at 25°C: 5
Relative vapour density (air = 1): 4.2
Flash point: 80°C c.c.
Explosive limits, vol% in air: 1.4-?
Octanol/water partition coefficient as log Pow: 2.35

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation, through the skin and by ingestion. Effects of short-term exposure The substance is corrosive to the eyes and skin. The substance is irritating to the respiratory tract. Corrosive on ingestion. See Notes.	Inhalation risk No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C. Effects of long-term or repeated exposure See Notes.

EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
The substance is corrosive to the eyes and skin. The substance is irritating to the respiratory tract. Corrosive on ingestion. See Notes.

Inhalation risk
No indication can be given about the rate at which a harmful concentration of this substance in the air is reached on evaporation at 20°C.

Effects of long-term or repeated exposure
See Notes.

OCCUPATIONAL EXPOSURE LIMITS
TLV: (inhalable fraction and vapour): 1 ppm as TWA; (DSEN); A3 (confirmed animal carcinogen with unknown relevance to humans)

ENVIRONMENT
The substance is harmful to aquatic organisms.

NOTES
See ICSCs 0070 and 601. Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken. Health effects may be similar to those of phenol and related compounds.

ADDITIONAL INFORMATION

EC Classification
Symbol: T; R: 24/25-34; S: (1/2)-26-28-36/37/39-45

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