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FENCHLORPHOS
ICSC: 0975
Peer-Review Status: 25.10.1995 Validated
O,O-Dimethyl-O-(2,4,5-trichlorophenyl) phosphorothioate
Ronnel 
CAS #: 299-84-3 RTECS #: TG0525000
EC #: 015-052-00-X
EINECS #: 206-082-6
    Formula: (CH3O)2PSOC6H2Cl3 / C8H8Cl3O3PS
Molecular mass: 321.5

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Not combustible. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire.    In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION      
 
EXPOSURE   PREVENT DISPERSION OF DUST! AVOID EXPOSURE OF (PREGNANT) WOMEN! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!   
Inhalation Dizziness. Sweating. Laboured breathing. Unconciousness. Vomiting. Pupillary constriction, muscle cramp, excessive salivation.  Avoid inhalation of dust and mist. Use ventilation (not if powder), local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin MAY BE ABSORBED!  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention . 
Eyes   Wear face shield or eye protection in combination with breathing protection if powder.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal cramps. Diarrhoea. Nausea. Vomiting. Pupillary constriction. Muscle cramps. Excessive salivation.  Do not eat, drink, or smoke during work. Wash hands before eating.  Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention . 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT wash away into sewer.  Do not transport with food and feedstuffs. 
EC Classification
Symbol: Xn, N; R: 21/22-50/53; S: (2)-25-36/37-60-61 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
  Separated from strong oxidants and food and feedstuffs. 

IMPORTANT DATA
Physical State; Appearance
WHITE POWDER. 

Physical dangers
No data. 

Chemical dangers
Decomposes on heating. This produces toxic fumes including hydrogen chloride, phosphorus oxides and sulfur oxides. 

Occupational exposure limits
TLV: 10mg/m³ as TWA; A4 (not classifiable as a human carcinogen); BEI issued; (ACGIH 2004). 

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol, through the skin and by ingestion. 

Inhalation risk
Evaporation at 20°C is negligible; a nuisance-causing concentration of airborne particles can, however, be reached quickly on spraying or when dispersed, especially if powdered. 

Effects of short-term exposure
The substance may cause effects on the nervous system. This may result in convulsions. Cholinesterase inhibition. The effects may be delayed. Medical observation is indicated. 

Effects of long-term or repeated exposure
Animal tests show that this substance possibly causes malformations in human babies. 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point: 41°C
Relative density (water = 1): 1.48
Solubility in water at 20°C: none
Vapour pressure, Pa at 25°C: <10
Octanol/water partition coefficient as log Pow: 4.88  
The substance is very toxic to aquatic organisms. Bioaccumulation of this chemical may occur in fish. Avoid release to the environment in circumstances different to normal use. 

NOTES
Temperature of decomposition unknown in literature.
Depending on the degree of exposure, periodic medical examination is suggested.
Carrier solvents used in commercial formulations may change physical and toxicological properties.
Do NOT take working clothes home.
Ectoral, Trolene, Viozene, Nankor and Korlan are trade names.
Card has been partly updated in October 2004 and 2005.
See sections Occupational Exposure Limits, EU classification. 

ADDITIONAL INFORMATION
 

IPCS
International
Programme on
Chemical Safety
WHO ILO EC Prepared in the context of cooperation between the International Programme on Chemical Safety and the European Commission
© IPCS 2004-2012
LEGAL NOTICE Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible for the use which might be made of this information.


    See Also:
       Toxicological Abbreviations
       Fenchlorphos (FAO/PL:1968/M/9/1)
       Fenchlorphos (Pesticide residues in food: 1983 evaluations)