ICSC 0590 - 2,3,6-TRICHLOROPHENOL

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2,3,6-TRICHLOROPHENOL	ICSC: 0590 (May 2010)
Phenol, 2,3,6-trichloro- 1-Hydroxy-2,3,6-trichlorobenzene

CAS #: 933-75-5

UN #: 2020

EC Number: 213-271-7

	ACUTE HAZARDS	PREVENTION	FIRE FIGHTING
FIRE & EXPLOSION	Combustible. Gives off irritating or toxic fumes (or gases) in a fire. Above 79°C explosive vapour/air mixtures may be formed.	NO open flames. Above 79°C use a closed system and ventilation.	Use foam, dry powder, carbon dioxide.

See Notes. PREVENT DISPERSION OF DUST!
	SYMPTOMS	PREVENTION	FIRST AID
Inhalation		Use local exhaust or breathing protection.	Fresh air, rest. Refer for medical attention.
Skin		Protective gloves.	Remove contaminated clothes. Rinse and then wash skin with water and soap.
Eyes		Wear safety goggles or eye protection in combination with breathing protection if powder.	Rinse with plenty of water (remove contact lenses if easily possible).
Ingestion		Do not eat, drink, or smoke during work.	Rinse mouth. Refer for medical attention .

SPILLAGE DISPOSAL	CLASSIFICATION & LABELLING
Personal protection: filter respirator for organic gases and particulates adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations.	According to UN GHS Criteria Toxic to aquatic life Transportation UN Classification UN Hazard Class: 6.1; UN Pack Group: III
STORAGE
Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. Separated from strong oxidants and food and feedstuffs.
PACKAGING
Do not transport with food and feedstuffs.

2,3,6-TRICHLOROPHENOL

ICSC: 0590

PHYSICAL & CHEMICAL INFORMATION
Physical State; Appearance COLOURLESS CRYSTALS WITH CHARACTERISTIC ODOUR. Physical dangers No data. Chemical dangers Decomposes on heating and on contact with strong oxidants. This produces toxic and corrosive fumes including hydrogen chloride. Decomposes on burning. This produces toxic and corrosive fumes including hydrogen chloride. The substance is a weak acid.	Formula: C₆H₃Cl₃O Molecular mass: 197.5 Boiling point: 272°C Melting point: 101°C Solubility in water: none Relative vapour density (air = 1): 6.8 Flash point: 79°C c.c. Octanol/water partition coefficient as log Pow: 3.8

PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS CRYSTALS WITH CHARACTERISTIC ODOUR.

Physical dangers
No data.

Chemical dangers
Decomposes on heating and on contact with strong oxidants. This produces toxic and corrosive fumes including hydrogen chloride. Decomposes on burning. This produces toxic and corrosive fumes including hydrogen chloride. The substance is a weak acid.

Formula: C₆H₃Cl₃O
Molecular mass: 197.5
Boiling point: 272°C
Melting point: 101°C
Solubility in water: none
Relative vapour density (air = 1): 6.8
Flash point: 79°C c.c.
Octanol/water partition coefficient as log Pow: 3.8

EXPOSURE & HEALTH EFFECTS
Routes of exposure The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. Effects of short-term exposure See Notes.	Inhalation risk Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed. 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 of its aerosol, through the skin and by ingestion.

Effects of short-term exposure
See Notes.

Inhalation risk
Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly when dispersed.

Effects of long-term or repeated exposure
See Notes.

OCCUPATIONAL EXPOSURE LIMITS

ENVIRONMENT
The substance is toxic to aquatic organisms. The substance may cause long-term effects in the aquatic environment. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal.

NOTES
Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken. 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.

NOTES

Insufficient data are available on the effect of this substance on human health, therefore utmost care must be taken.
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.

ADDITIONAL INFORMATION

EC Classification

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