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NIOSH

3,5-XYLENOL

ICSC: 1356

3,5-Dimethylphenol
1-Hydroxy-3,5-dimethylbenzene
C8H10O / 3,5(CH3)2C6H3OH
Molecular mass: 122.2
ICSC # 1356 		CAS # 108-68-9
RTECS # ZE6475000
UN # 2261
EC # 604-037-00-9
February 10, 2000 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Combustible.
NO open flames.
Powder, alcohol-resistant foam, water spray, carbon dioxide.
EXPLOSION Finely dispersed particles form explosive mixtures in air.
Prevent deposition of dust; closed system, dust explosion-proof electrical equipment and lighting.

EXPOSURE
PREVENT DISPERSION OF DUST!

•INHALATION Cough. Dizziness. Headache.
Local exhaust or breathing protection.
Fresh air, rest. Half-upright position. Artificial respiration if indicated. 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.
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 take to a doctor.
•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

STORAGE

PACKAGING & LABELLING

Sweep spilled substance into sealable containers. Do NOT let this chemical enter the environment. (Extra personal protection: chemical protection suit including self-contained breathing apparatus).
Separated from acid anhydrides , acid chlorides , bases , and oxidants .
Do not transport with food and feedstuffs.
Marine pollutant.
T symbol
R: 24/25-34
S: 1/2-26-28-36/37/39-45
UN Hazard Class: 6.1
UN Packing Group: II
ICSC: 1356 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.

3,5-XYLENOL

ICSC: 1356

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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 .

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation, through the skin, and by ingestion.

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

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is corrosive to the eyes and the skin . The substance irritates the respiratory tract . Corrosive on ingestion. See Notes.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
See Notes.

PHYSICAL
PROPERTIES

Boiling point: 219°C
Melting point: 64°C
Density: 0.97
g/cm3
Solubility in water, g/100 ml 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

ENVIRONMENTAL
DATA

The substance is harmful to aquatic organisms.

N O T E S

Also consult ICSC #0601 (Xylenol), 0070 (Phenol). 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.
Transport Emergency Card: TEC (R)-672

ADDITIONAL INFORMATION



ICSC: 1356 3,5-XYLENOL
(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.
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