2,4,6-Trichlorophenol

  • Dowcide 2S
Formula
2,4,6-(Cl)3-C6H2OH
Structure
Description
White to yellow needles or flakes, strong phenolic odor.
Uses
Herbicide, defoliant, fungicide former uses.

Registry Numbers and Inventories.
CAS
88-06-2
EC (EINECS/ELINCS)
201-795-9
EC Index Number
604-018-00-5
EC Class
Carcinogenic Category 3; Harmful; Irritant; Dangerous for the Environment
R 22 36/38 40 50/53
S 36/37 60 61
RTECS
SN1575000
RTECS class
Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Primary Irritant
UN (DOT)
2020
Merck
12,9773
Beilstein/Gmelin
776729
Beilstein Reference
4-06-00-01005
RCRA
D042
EPA OPP
64212
Swiss Giftliste 1
G-8181
Canada DSL/NDSL
NDSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H3Cl3O
Formula mass
197.45
Melting point, °C
66
Boiling point, °C
244.5
Vapor pressure, mmHg
0.024 (25 C)
Vapor density (air=1)
6.8
Saturation Concentration
1316 ppm (0.1%) at 76.5 C (calculated)
Odor Threshold Odor threshold 1,222 ug/L at 25 C
Density
1.5233 g/cm3 (58 C)
Solubility in water
Insoluble
pKa/pKb
6.59 (pKa)
Partition coefficient, pKow
3.69
Heat of vaporization
60.3 kJ/mol

Hazards and Protection.
Storage
Store in a cool, dry, well-ventilated area away from incompatible substances. Keep containers tightly closed.
Handling
Wash thoroughly after handling. Use with adequate ventilation. Do not get in eyes, on skin, or on clothing. Do not ingest or inhale. Use only in a chemical fume hood. Do not breathe dust.
Protection
Eyes: Wear safety glasses and chemical goggles if splashing is possible. Skin: Wear appropriate protective gloves and clothing to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use.
Small spills/leaks
Clean up spills immediately, using the appropriate protective equipment. Cover with an activated carbon adsorbent and place into a closed container for disposal. Provide ventilation.
Disposal code
3
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Oxidizing agents, acid chlorides, acid anhydrides.
Decomposition
Hydrogen chloride, carbon monoxide, carbon dioxide, chloride fumes.

Fire.
Flash Point,°C
96
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Runoff from fire control or dilution water may cause pollution. Extinguishing media: Do NOT get water inside containers. In case of fire, use carbon dioxide, dry chemical powder or water spray.
Fire potential
This material is nonflammable
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
2
 
Flammability
1
 
 
Reactivity
0
 

Health.
Carcinogin
I-2B, N-2, CP65
Poison_Class
4
Exposure effects
Effects may be delayed. Workers exposed to chlorophenols showed persistent chloracne, liver dy sfunction, neuromuscular weakness, porphyria and psychological changes .
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed.
   Inhalation
Dust is irritating to the respiratory tract. Causes irritation of mucous membrane.
   Skin
May be harmful if absorbed through the skin. Causes skin irritation and possible burns. Substance is readily absorbed through the skin. Contact with skin produces redness and edema.
   Eyes
Causes severe eye irritation. May cause chemical conjunctivitis and corneal damage.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed.

Transport.
UN number
2020
Response guide
Hazard class
6.1
Packing Group
III
 
USCG CHRIS Code
TPY
 
HS Code
2908 10 00