Trichlorophenol

  • Phenol, trichloro-
Formula
C6H3Cl3O
Structure
Description
Solid crystals or flakes with a strong disinfectant odor.
Uses
Fungicide and bactericide.

Registry Numbers and Inventories.
CAS
25167-82-2
EC (EINECS/ELINCS)
246-694-0
RTECS
SN1290000
RTECS class
Other
UN (DOT)
2020
Beilstein/Gmelin
NA
RCRA
U230
Canada DSL/NDSL
NDSL
US TSCA
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C6H3Cl3O
Formula mass
197.44
Melting point, °C
57.2
Boiling point, °C
252
Density
1.678 g/cm3 (20 C)

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Wear boots, protective gloves, and goggles. Wear approved dust respirator for toxic dusts; protective clothing to prevent contact with skin.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area). Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.
Stability
No data.
Incompatibilities
Reacts as weak organic acids Incompatible with strong reducing substances such as hydrides, nitrides, alkali metals, and sulfides.

Fire.
Fire fighting
SMALL FIRES: Dry chemical, carbon dioxide or water spray. LARGE FIRES: Dry chemical, carbon dioxide, alcohol-resistant foam or water spray. Move containers from fire area if you can do it without risk. Dike fire control water for later disposal; do not scatter the material. FIRE INVOLVING TANKS OR CAR/TRAILER LOADS: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Do not get water inside containers. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire.
Fire potential
May burn but does not ignite readily.
Hazards
When heated, vapors may form explosive mixtures with air: indoors, outdoors, and sewers explosion hazards. May polymerize explosively when heated or involved in a fire. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.

Health.
Exposure effects
Abnormally low blood pressure, reduced body temperature, rapid breathing, and rapid heart rate may develop with severe toxicity. initial CNS excitation, including seizures, is commonly followed by CNS depression ranging from lethargy to coma and death. Fetotoxicity and skeletal abnormalities have been reported in animal experiments.
   Ingestion
Phenol is extremely corrosive and may cause oral and esophageal burns and abdominal pain following ingestion.
   Inhalation
Tachypnea is commonly reported; pulmonary edema and bronchospasm may also occur. Phenol is not considered a serious respiratory hazard in the workplace because of its low volatility. Systemic absorption can damage lungs and lead to cardiorespiratory collapse.
   Skin
Phenol is corrosive to the skin, but because of anesthetic qualities, it will numb rather than causing a burning pain on contact. Skin becomes red and swollen, then white and opaque. Deep burns result that may become gangrenous. Poisoning is usually through skin absorption; lethal quantities can be absorbed. Dermal contact with phenolic compounds may result in irritation, dermatitis, abnormal pigmentation, and burns. Dermatitis and depigmentation appear to be the most common adverse effects.
   Eyes
See Inhalation.

First aid
 
   Ingestion
Seek medical assistance.
   Inhalation
Remove to fresh air; get medical attention.
   Skin
Wash with soap and water; if irritation occurs, get medical attention.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Transport.
UN number
2020
Response guide
Hazard class
6.1
Packing Group
III