Common Name: 2,4,6-Trichlorophenol
CAS Number: 88-06-2
DOT Number: NA 2020
Date: June, 1988
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HAZARD SUMMARY
* 2,4,6-Trichlorophenol can affect you when breathed in.
* 2,4,6-Trichlorophenol can irritate the eyes, nose, throat and
skin.
* Exposure to high levels can cause weakness, difficulty
breathing tremors (shakes), convulsions (fits) coma and death.
* 2,4,6-Trichlorophenol may be contaminated with 2,3,7,8-
Tetrachlorodibenzo-p-dioxin.
IDENTIFICATION
2,4,6-Trichlorophenol is a colorless to yellow solid with a strong
odor. It is used as a wood and glue preservative, insecticide
ingredient, bactericide and for anti mildew treatment.
REASON FOR CITATION
* 2,4,6-Trichlorophenol is on the Hazardous Substance List
because it is cited by DOT, IARC, NTP, CAG and EPA.
* This chemical is on the Special Health Hazard Substance List
because it is a CARCINOGEN.
* Definitions are attached.
HOW TO DETERMINE IF YOU ARE BEING EXPOSED
* Exposure to hazardous substances should be routinely
evaluated. This may include collecting personal and area air
samples. You can obtain copies of sampling results from your
employer. You have a legal right to this information under
OSHA 1910.20.
* If you think you are experiencing any work related health
problems, see a doctor trained to recognize occupational
diseases. Take this Fact Sheet with you.
WORKPLACE EXPOSURE LIMITS
No occupational exposure limits have been established for 2,4,6-
Trichlorophenol. This does not mean that this substance is not
harmful. Safe work practices should always be followed.
* 2,4,6-Trichlorophenol is a PROBABLE CARCINOGEN in humans.
There may be no safe level of exposure to a carcinogen, so all
contact should be reduced to the lowest possible level.
WAYS OF REDUCING EXPOSURE
* Where possible, enclose operations and use local exhaust
ventilation at the site of chemical release. If local exhaust
ventilation or enclosure is not used, respirators should be
worn.
* A regulated, marked area should be established where 2,4,6-
Trichlorophenol is handled, used, or stored.
* Wear protective work clothing.
* Wash thoroughly immediately after exposure to 2,4,6-
Trichlorophenol and at the end of the workshift.
* Post hazard and warning information in the work area. In
addition, as part of an ongoing education and training effort,
communicate all information on the health and safety hazards
of 2,4,6-Trichlorophenol to potentially exposed workers.
This Fact Sheet is a summary source of information of all potential
and most severe health hazards that may result from exposure.
Duration of exposure, concentration of the substance and other
factors will affect your susceptibility to any of the potential
effects described below.
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HEALTH HAZARD INFORMATION
Acute Health Effects
The following acute (short term) health effects may occur
immediately or shortly after exposure to 2,4,6-Trichlorophenol:
* Exposure to high levels can cause weakness difficulty in
breathing, tremors (shakes), convulsions (fits) coma and
death.
* Exposure to 2,4,6-Trichlorophenol can irritate the eyes, nose,
throat and skin.
Chronic Health Effects
The following chronic (long term) health effects can occur at some
time after exposure to 2,4,6-Trichlorophenol and can last for
months or years:
Cancer Hazard
* 2,4,6-Trichlorophenol is a PROBABLE CARCINOGEN in humans. It
has been shown to cause leukemia and liver cancer in animals.
* Many scientists believe there is no safe level of exposure to
a carcinogen. Such substances may also have the potential for
causing reproductive damage in humans.
Reproductive Hazard
* According to the information presently available to the New
Jersey Department of Health, 2,4,6-Trichlorophenol has not
been tested for its ability to affect reproduction adversely.
Other Long Term Effects
* 2,4,6-Trichlorophenol has not been tested for other chronic
(long term) health effects. However a related chemical,
Phenol, can cause liver and kidney damage.
* If 2,4,6-Trichlorophenol is contaminated with 2,3,7,8-
Tetrachlorodibenzoparadioxin, an acne like skin rash, liver
damage and nervous system damage with symptoms of weakness,
pain in the legs and numbness may occur.
MEDICAL TESTING
There is no special test for this chemical. However, if illness
occurs or over exposure is suspected, medical attention is
recommended.
Any evaluation should include a careful history of past and present
symptoms with an exam. Medical tests that look for damage already
done are not a substitute for controlling exposure.
Request copies of your medical testing. You have a legal right to
this information under OSHA 1910.20.
WORKPLACE CONTROLS AND PRACTICES
Unless a less toxic chemical can be substituted for a hazardous
substance, ENGINEERING CONTROLS are the most effective way of
reducing exposure. The best protection is to enclose operations
and/or provide local exhaust ventilation at the site of chemical
release. Isolating operations can also reduce exposure. Using
respirators or protective equipment is less effective than the
controls mentioned above, but is sometimes necessary.
In evaluating the controls present in your workplace, consider: (1)
how hazardous the substance is, (2) how much of the substance is
released into the workplace and (3) whether harmful skin or eye
contact could occur. Special controls should be in place for highly
toxic chemicals or when significant skin, eye, or breathing
exposures are possible.
In addition, the following control is recommended:
* Where possible, transfer 2,4,6-Trichlorophenol from drums or
other storage containers to process containers.
Good WORK PRACTICES can help to reduce hazardous exposures. The
following work practices are recommended:
* Workers whose clothing has been contaminated by 2,4,6-
Trichlorophenol should change into clean clothing promptly.
* Do not take contaminated work clothes home. Family members
could be exposed.
* Contaminated work clothes should be laundered by individuals
who have been informed of the hazards of exposure to 2,4,6-
Trichlorophenol.
* Eye wash fountains should be provided in the immediate work
area for emergency use.
* If there is the possibility of skin exposure, emergency shower
facilities should be provided.
* On skin contact with 2,4,6-Trichlorophenol, immediately wash
or shower to remove the chemical. At the end of the workshift,
wash any areas of the body that may have contacted 2,4,6-
Trichlorophenol, whether or not known skin contact has
occurred.
* Do not eat, smoke, or drink where 2,4,6-Trichlorophenol is
handled, processed, or stored, since the chemical can be
swallowed. Wash hands carefully before eating or smoking.
PERSONAL PROTECTIVE EQUIPMENT
WORKPLACE CONTROLS ARE BETTER THAN PERSONAL PROTECTIVE EQUIPMENT.
However, for some jobs (such as outside work, confined space entry,
jobs done only once in a while, or jobs done while workplace
controls are being installed), personal protective equipment may be
appropriate.
The following recommendations are only guidelines and may not apply
to every situation.
Clothing
* Avoid skin contact with 2,4,6-Trichlorophenol. Wear protective
gloves and clothing. Safety equipment suppliers/manufacturers
can provide recommendations on the most protective
glove/clothing material for your operation.
* All protective clothing (suits, gloves, footwear, headgear)
should be clean, available each day, and put on before work.
Eye Protection
* Eye protection is included in the recommended respiratory
protection.
Respiratory Protection
IMPROPER USE OF RESPIRATORS IS DANGEROUS. Such equipment should
only be used if the employer has a written program that takes into
account workplace conditions, requirements for worker training,
respirator fit testing and medical exams, as described in OSHA
1910.134.
* Engineering controls must be effective to ensure that exposure
to 2,4,6-Trichlorophenol does not occur.
* At any exposure level, use a MSHA/NIOSH approved supplied air
respirator with a full facepiece operated in the positive
pressure mode or with a full facepiece, hood, or helmet in the
continuous flow mode, or use a MSHA/NIOSH approved self
contained breathing apparatus with a full facepiece operated
in pressure demand or other positive pressure mode.
Common Name: 2,4,6-Trichlorophenol
DOT Number: NA 2020
DOT Emergency Guide code: 53
CAS Number: 88-06-2
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NJ DOH Hazard rating
FLAMMABILITY 1
REACTIVITY 0
----------------------------------------
CARCINOGEN
POISONOUS GASES ARE PRODUCED IN FIRE
----------------------------------------
Hazard Rating Key: 0=minimal; 1=slight; 2=moderate; 3=serious;
4=severe
FIRE HAZARDS
* 2,4,6-Trichlorophenol may burn, but does not readily ignite.
* POISONOUS GASES ARE PRODUCED IN FIRE, including Carbon
Monoxide, Carbon Dioxide, Chlorine and Hydrogen Chloride.
* If employees are expected to fight fires, they must be trained
and equipped as stated in OSHA 1910.156.
SPILLS AND EMERGENCIES
If 2,4,6-Trichlorophenol is spilled, take the following steps:
* Restrict persons not wearing protective equipment from area of
spill until cleanup is complete.
* Collect powdered material in the most convenient and safe
manner and deposit in sealed containers.
* It may be necessary to contain and dispose of 2,4,6-
Trichlorophenol as a HAZARDOUS WASTE. Contact your state
Environmental Program for specific recommendations.
==========================================
FOR LARGE SPILLS AND FIRES immediately call your fire department.
==========================================
HANDLING AND STORAGE
* Prior to working with 2,4,6-Trichlorophenol you should be
trained on its proper handling and storage.
* 2,4,6-Trichlorophenol is not compatible with ACID CHLORIDES,
ACID ANHYDRIDES, and STRONG OXIDIZERS (such as CHLORINE,
BROMINE and FLUORINE).
* Store in tightly closed containers in a cool, well ventilated
area.
* A regulated, marked area should be established where 2,4,6-
Trichlorophenol is handled, used, or stored.
FIRST AID
POISON INFORMATION
Eye Contact
* Immediately flush with large amounts of water for at least 15
minutes, occasionally lifting upper and lower lids. Seek
medical attention immediately.
Skin Contact
* Quickly remove contaminated clothing. Immediately wash
contaminated skin with large amounts of soap and water.
Breathing
* Remove the person from exposure.
* Begin rescue breathing if breathing has stopped and CPR if
heart action has stopped.
* Transfer promptly to a medical facility.
PHYSICAL DATA
Vapor Pressure: 1 mm Hg at 170oF (76.6oC)
Water Solubility: Slightly soluble
OTHER COMMONLY USED NAMES
Chemical Name:
Phenol, 2,4,6 Trichloro
Other Names and Formulations:
TCP; 2,4,6 T; Omal; Phenachlor.
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Not intended to be copied and sold for commercial purposes.
------------------------------------------
NEW JERSEY DEPARTMENT OF HEALTH
Right to Know Project
CN 368, Trenton, NJ 08625 0368
------------------------------------------
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ECOLOGICAL INFORMATION
2,4,6-Trichlorophenol is a crystalline solid with a strong phenolic
odor. It is used directly as a fungicide, bactericide, and
preservative agent. It is also used to produce more highly
chlorinated phenols. It may enter the environment from industrial
or municipal waste water treatment discharges, leaching from site
of application, or spills.
ACUTE (SHORT-TERM) ECOLOGICAL EFFECTS
Acute toxic effects may include the death of animals, birds, or
fish, and death or low growth rate in plants. Acute effects are
seen two to four days after animals or plants come in contact with
a toxic chemical substance.
2,4,6-Trichlorophenol has high acute toxicity to aquatic life. It
has caused germination decrease in several agricultural crops.
Insufficient data are available to evaluate or predict the short-
term effects of 2,4,6-Trichlorophenol to birds or land animals.
CHRONIC (LONG-TERM) ECOLOGICAL EFFECTS
Chronic toxic effects may include shortened lifespan, reproductive
problems, lower fertility, and changes in appearance or behavior.
Chronic effects can be seen long after first exposure(s) to a toxic
chemical.
2,4,6-Trichlorophenol has moderate chronic toxicity to aquatic
life. Insufficient data are available to evaluate to predict the
long-term effects of 2,4,6-Trichlorophenol to plants, birds, or
land animals.
WATER SOLUBILITY
2,4,6-Trichlorophenol is moderately soluble in water.
Concentrations of between 1 to 1,000 milligrams will mix with a
liter of water.
DISTRIBUTION AND PERSISTENCE IN THE ENVIRONMENT
2,4,6-Trichlorophenol is slightly persistent in water, with a half-
life of between 2 to 20 days. The half-life of a pollutant is the
amount of time it takes for one-half of the chemical to be
degraded. About 56.25% of 2,4,6-Trichlorophenol will eventually
end up in air; about 27.8% will end up in water; about 8.25% will
end up in terrestrial soils, and about 7.7% will end up in aquatic
sediments.
BIOACCUMULATION IN AQUATIC ORGANISMS
Some substances increase in concentration, or bioaccumulate, in
living organisms as they breathe contaminated air, drink
contaminated water, or eat contaminated food. These chemicals can
become concentrated in the tissues and internal organs of animals
and humans.
The concentration of 2,4,6-Trichlorophenol found in fish tissues is
expected to be somewhat higher than the average concentration of
2,4,6-Trichlorophenol in the water from which the fish was taken.
SUPPORT DOCUMENT: AQUIRE Database, ERL-Duluth, U.S. EPA.
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