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2,3,5-TRICHLOROPHENOL ICSC: 0589
Date of Peer Review: April 1997

Phenol, 2,3,5-trichloro-
1-Hydroxy-2,3,5-trichlorobenzene
CAS # 933-78-8 C6H3Cl3O
RTECS # Molecular mass: 197.5
UN # 2020
EC Index #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible.
NO open flames.
Water spray, powder.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST!

Inhalation Cough. Sore throat. See Notes.
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin Dry skin. Redness. Pain.
Protective gloves. Protective clothing.
Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention.
Eyes Redness. Pain.
Safety goggles or eye protection in combination with breathing protection if powder.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
Ingestion Abdominal pain. Diarrhoea. Headache. Dizziness. Vomiting. Weakness. Convulsions. Muscular spasms. Increased body temperature and sweating (see Notes).
Do not eat, drink, or smoke during work. Wash hands before eating.
Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT let this chemical enter the environment. Personal protection: P2 filter respirator for harmful particles.
Do not transport with food and feedstuffs.
EU Classification
UN Classification
UN Hazard Class: 6.1
UN Pack Group: III
EMERGENCY RESPONSE STORAGE
Transport Emergency Card: TEC (R)-61S2020 or 61GT2-III
Provision to contain effluent from fire extinguishing. Separated from strong oxidants, food and feedstuffs.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK
2,3,5-TRICHLOROPHENOL ICSC: 0589
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
COLOURLESS CRYSTALS, WITH CHARACTERISTIC ODOUR.

CHEMICAL DANGERS:
The substance decomposes on heating, on burning and on contact with strong oxidants producing toxic and corrosive fumes of hydrogen chloride. The substance is a weak acid.

OCCUPATIONAL EXPOSURE LIMITS:
TLV not established.
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion.

INHALATION RISK:
Evaporation at 20C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

EFFECTS OF SHORT-TERM EXPOSURE:
See Notes.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact with skin may cause dermatitis.
PHYSICAL PROPERTIES
Boiling point: 248-253C
Melting point: 62C
Solubility in water: poor
Octanol/water partition coefficient as log Pow: 4.56
ENVIRONMENTAL DATA
The substance is toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment.
NOTES
No data are available on this isomer but a mixture of trichlorophenols may cause irrititation of the skin, eyes and respiratory tract. These substances may cause acute metabolic effects resulting in damage in several organs notably CNS. Some technical products may contain highly toxic impurities including polychlorinated dibenzo-p-dioxins and -furans. Depending on the degree of exposure, periodic medical examination is suggested. Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken. Also consult ICSC 1122. Card has been partly updated in October 2005. See section Emergency Response.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor the IPCS nor any person acting on behalf of the CEC or the IPCS is responsible for the use which might be made of this information
IPCS, CEC 2005