| Chemical Properties | Back Directory | [Appearance]
Trichlorophenols exists as 6 isomers (2,4,5-;
3,4,5-; 2,4,6-; 2,3,4-; 2,3,5-and 2,3,6-). The most important
(heavily regulated) are the 2,4,5-and 2,4,6-isomers. The
2,4,5-isomer is white powder or needles; 2,3,5-and 2,3,6-
are colorless crystals; 2,4,5-is a gray crystalline solid or
flakes; 2,4,6-is a colorless to light yellow crystalline solid.
They have a phenolic odor. | [Melting point ]
57.2°C | [Boiling point ]
283.33°C (rough estimate) | [density ]
1.5701 (rough estimate) | [refractive index ]
1.5300 (estimate) |
| Hazard Information | Back Directory | [Chemical Properties]
Trichlorophenols exists as 6 isomers (2,4,5-;
3,4,5-; 2,4,6-; 2,3,4-; 2,3,5-and 2,3,6-). The most important
(heavily regulated) are the 2,4,5-and 2,4,6-isomers. The
2,4,5-isomer is white powder or needles; 2,3,5-and 2,3,6-
are colorless crystals; 2,4,5-is a gray crystalline solid or
flakes; 2,4,6-is a colorless to light yellow crystalline solid.
They have a phenolic odor. | [Potential Exposure]
2,4,5-TCP is used as antifungal agent in
adhesives and as preservative in polyvinylacetate emulsions.
2,4,6-T is used in manufacturing slime-control agents and as
an effective germicide and preservative; to produce defoliant
2,4,5-T and related products. Also used directly as a fungicide,
anti-mildew and preservative agent; algicide, bactericide.
2,4,6-TCP is used to produce 2,3,4,6-TCP and PCP. Used
directly as germicide, bactericide, glue and wood preservative;
and anti-mildew treatment. 2,3,6-TCP is used as intermediate
in production of fungicides and plant growth regulators | [First aid]
Skin Contact: Flood all areas of body that
have contacted the substance with water. Don’t wait to
remove contaminated clothing; do it under the water
stream. Use soap to help assure removal. Isolate contaminated
clothing when removed to prevent contact by others.
Eye Contact: Remove any contact lenses at once.
Immediately flush eyes well with copious quantities of
water or normal saline for at least 20-30 minutes. Seek
medical attention.
Inhalation: Leave contaminated area immediately; breathe
fresh air. Proper respiratory protection must be supplied to
any rescuers. If coughing, difficult breathing or any other
symptoms develop, seek medical attention at once, even if
symptoms develop many hours after exposure.
Ingestion: If unconscious or convulsing, do not induce
vomiting or give anything by mouth. Assure that victim’s
airway is open and lay him on his side with his head lower
than his body and transport at once to a medical facility. If
conscious and not convulsing, give a slurry of activated
charcoal in water. If medical advice is not readily available,
do not induce vomiting, and rush the victim to the nearest
medical facility. | [Shipping]
UN2020 Chlorophenols, solid, Hazard Class:
6.1; Labels: 6.1-Poisonous materials. | [Incompatibilities]
Perhaps the most notable incompatibility
is the reaction of 2,4,5-trichlorophenol in alkaline medium
at high temperatures to produce dioxin. (2,3,4-isomer)
reacts with oxidizers, acid anhydrides; and acid chlorides.
(2,3,5-isomer) 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.
(2,3,6-isomer); the substance is a weak acid. pH=4.8/4.2-;
(2,4,6-isomer); reacts violently with strong oxidants and is
incompatible with acid chlorides and acid anhydrides. | [Waste Disposal]
Consult with environmental
regulatory agencies for guidance on acceptable disposal practices.
Generators of waste containing this contaminant
(≥100 kg/mo) must conform with EPA regulations governing
storage, transportation, treatment, and waste disposal.
Incineration, preferably after mixing with another combustible
fuel. Care must be exercised to assure complete combustion
to prevent the formation of phosgene. An acid scrubber is
necessary to remove the halo acids produced. |
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