Thiobencarb

  • Benthiocarb
  • S-(4-Chlorobenzyl)-N,N-diethylthiocarbamate
  • S-(p-Chlorobenzyl) diethylthiocarbamate
  • S-4-Chlorobenzyl diethyl(thiocarbamate)
  • (S-(4-Chlorobenzyl)-N,N-diethylthiolcarbamate)
  • S-((4-Chlorophenyl)methyl) diethylcarbamothioate
Formula
C12H16ClNOS
Structure
Description
Pale yellow to brownish yellow liquid.
Uses
Herbicide.

Registry Numbers and Inventories.
CAS
28249-77-6
EC (EINECS/ELINCS)
248-924-5
EC Index Number
006-063-00-0
EC Class
Harmful; Dangerous for the Environment
RTECS
EZ7260000
RTECS class
Agricultural Chemical and Pesticide; Mutagen
Beilstein/Gmelin
1968440
EPA OPP
283500
Austrailia AICS
Listed
Korea ECL
Listed

Properties.
Formula
C12H16ClNOS
Formula mass
257.80
Boiling point, °C
350
Vapor pressure, mmHg
2E-5 (25 C)
Density
1.145-1.180 g/cm3 (20 C)
Solubility in water
28.0 mg/L (25 C)
Partition coefficient, pKow
3.42
Heat of vaporization
59.5 kJ/mol

Hazards and Protection.
Storage
Keep container tightly closed. Keep in a cool, dry location. Store only with compatible chemicals.
Handling
Avoid contact with skin, eyes and clothing. Do not breathe vapors. Contact lenses shouldn’t be worn in the laboratory. Persons not perly trained shouldn’t handle this chemical or its container.
Protection
Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots.
Respirators
Use OSHA/MSHA approved respirator.
Small spills/leaks
Evacuate the area. Wear SCBA, rubber boots and gloves. Cover with dry lime or soda ash. Pickup and keep in a closed contaner for waste disposal. Wash area until material pickup is complete.
Stability
Stable under acid and moderately alkaline conditions.
Incompatibilities
Strong oxidizing agents.

Fire.
Flash Point,°C
166
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. Use agent most appropriate to extinguish fire.

Health.
Exposure effects
Suspected carcinogen.
   Ingestion
Fatal if ingested.
   Inhalation
Respiratory failure, requiring ventilatory support, has been reported following ingestions.
   Skin
Harmful/fatal if absorbed.

First aid
 
   Ingestion
Ipecac induced vomiting is not recommended because of the potential for cns depression and seizures. Consider after ingestion of a potentially life-threatening amount of poison if it can be performed soon after ingestion (generally within 1 hour). Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents. Intravenous fluids may be useful in restoring extracellular fluid volume following severe vomiting and diarrhea. Oxygen therapy is effective in relieving the distress of antabuse-like reactions rarely associated with exposure to thiram and possibly the mbdt-carb compounds. No specific antidotes are available for poisoning by these compounds. Activated charcoal: administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents.
   Inhalation
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
   Eyes
If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.

Transport.