ICSC 0590 - 2,3,6-TRICHLOROPHENOL

[List of Chemicals] [Risk Notes] [Risk Phrases] [Safety Phrases] [Danger Symbols]

2,3,6-TRICHLOROPHENOL

ICSC: 0590
_{April 1997}

Phenol, 2,3,6-trichloro-
1-Hydroxy-2,3,6-trichlorobenzene

CAS No: 933-75-5
RTECS No: SN1300000
UN No: 2020

C₆H₃Cl₃O
Molecular mass: 197.5

TYPES OF HAZARD / EXPOSURE	ACUTE HAZARDS / SYMPTOMS	PREVENTION	FIRST AID / FIRE FIGHTING
FIRE	Combustible.	NO open flames.	Water spray, foam, powder, carbon dioxide.
EXPLOSION	Above 78°C explosive vapour/air mixtures may be formed.	Above 78°C use a closed system, ventilation.

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.	UN Hazard Class: 6.1 UN Pack Group: III	Do not transport with food and feedstuffs.

EMERGENCY RESPONSE	SAFE STORAGE
Transport Emergency Card: TEC (R)-61S2020 or 61GT2-III NFPA Code: H2; F; R0	Provision to contain effluent from fire extinguishing. Separated from strong oxidants, food and feedstuffs.

IMPORTANT DATA

Physical State; Appearance
COLOURLESS CRYSTALS, WITH CHARACTERISTIC ODOUR.

Chemical dangers
The substance decomposes on heating, 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 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

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

Effects of long-term or repeated exposure
Repeated or prolonged contact with skin may cause dermatitis. See Notes.

PHYSICAL PROPERTIES	ENVIRONMENTAL DATA
Boiling point: 253°C Melting point: 58°C Solubility in water: none Flash point: 78°C Octanol/water partition coefficient as log Pow: 3.6	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 irritation 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.

IPCS
International
Programme on
Chemical Safety

Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004

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