Phenol, 2,3,5-trichloro-
1-Hydroxy-2,3,5-trichlorobenzene
C6H3Cl3O
Molecular mass: 197.5
ICSC # 0589
CAS # 933-78-8
UN # 2020
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
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NO open flames.
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Water spray, powder.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
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•Inhalation
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Cough.
Sore throat.
See Notes.
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Local exhaust or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Dry skin.
Redness.
Pain.
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse and then wash skin with water and soap.
Refer for medical attention.
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•Eyes
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Redness.
Pain.
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Safety goggles
or
eye protection in combination with breathing protection if powder.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Abdominal pain.
Diarrhoea.
Headache.
Dizziness.
Vomiting.
Weakness.
Convulsions.
Muscular spasms. Increased body temperature and sweating (see Notes).
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
Give a slurry of activated charcoal in water to drink.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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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.
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Provision to contain effluent from fire extinguishing.
Separated from
strong oxidants,
food and feedstuffs
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Do not transport with food and feedstuffs.
UN Hazard Class: 6.1
UN Packing Group: III
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Important Data
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Physical State; Appearance:
COLOURLESS
CRYSTALS
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
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.
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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:
See Notes.
Effects of Long-Term or Repeated Exposure:
Repeated or prolonged contact with skin may cause dermatitis.
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Physical
Properties
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Boiling point: 248-253°C
Melting point: 62°C
Solubility in water:
poor
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Octanol/water partition coefficient as log Pow: 4.56
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Environmental
Data
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The substance is toxic to aquatic organisms.
The substance may cause long-term effects in the aquatic environment.
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N O T E S
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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.
Transport Emergency Card: TEC (R)-61S2020 or 61GT2-III
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ADDITIONAL INFORMATION
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ICSC: 0589
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2,3,5-TRICHLOROPHENOL
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(C) IPCS, CEC, 1994
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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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