Sodium 2,4,5-trichlorophenolate

  • Dowicide B
  • Sodium salt of 2,4,5-trichlorophenol
  • Sodium 2,4,5-trichlorophenoxide
  • Caswell No 797A
Formula
C6H2Cl3ONa
Structure
Description
Light tan solid.
Uses
Used as a fungicide and bactericide. Uses include: adhesives. A major component of Agent Orange during the Vietnam War era.

Registry Numbers and Inventories.
CAS
136-32-3
EC (EINECS/ELINCS)
205-239-6
RTECS
SN2750000
RTECS class
Agricultural Chemical and Pesticide
Beilstein/Gmelin
4165798
EPA OPP
64217
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
Japan ENCS (MITI)
Listed

Properties.
Formula
C6H2Cl3O*Na
Formula mass
219.43

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 approved dust respirator for toxic dusts; goggles; protective clothing to prevent contact with skin. wear boots, protective gloves, and goggles.
Respirators
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Small spills/leaks
Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces.
Stability
No data.
Decomposition
Emits hydrogen clhoride and disodium oxide fumes when heated to decomposition.

Fire.
Fire fighting
Fire Extinguishing Agents: Water fog, CO 2 or dry chemical.
Fire potential
Non-combustible trichlorophenol nonflammable trichlorophenol
Combustion products
Emits noxious fumes.

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. Stridor has been reported from exposure to high concentrations of phenol. Respiratory arrest occurred 30 minutes post ingestion of 26.7 Grams of phenol in one case.
   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.

First aid
 
   Ingestion
Dilution - may enhance absorption of phenol, and should be avoided. Ipecac induced vomiting is not recommended because of the potential for cns depression and seizures. Activated charcoal - may limit systemic toxicity if administered soon after ingestion, but may interfere with endoscopic evaluation of gastrointestinal burns.
   Inhalation
Remove to fresh air. If needed give artificial respiration.
   Skin
Wash with soap and water.
   Eyes
Flush with running water.

Transport.
USCG CHRIS Code
TAS