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FENAMIPHOSICSC: 0483
November 1998
CAS #: 22224-92-6Phenamiphos
Ethyl-3-methyl-4-(methylthio)phenyl(1-methylethyl)phosphoramidate
UN #: 2783
EINECS #: 244-848-1

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Liquid formulations containing organic solvents may be flammable.    NO open flames.    Use powder, foam, carbon dioxide.   

 PREVENT DISPERSION OF DUST! STRICT HYGIENE! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN! IN ALL CASES CONSULT A DOCTOR! 
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Abdominal cramps. Convulsions. Dizziness. Sweating. Nausea. Unconsciousness. Pupillary constriction, muscle cramp, excessive salivation. Symptoms may be delayed. See Notes.  Use local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer for medical attention. 
Skin MAY BE ABSORBED! See Inhalation.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention . 
Eyes Further see Inhalation.  Wear face shield or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion See Inhalation.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Give a slurry of activated charcoal in water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: chemical protection suit including self-contained breathing apparatus. Do NOT wash away into sewer. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Pack Group: I 

STORAGE
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. Well closed. 
PACKAGING
Do not transport with food and feedstuffs.
Marine pollutant. 
FENAMIPHOS ICSC: 0483
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS CRYSTALS WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
On combustion, forms toxic and corrosive gases. 

Formula: C13H22NO3PS
Molecular mass: 303.4
Melting point: 49.2°C
Density: 1.15 g/cm³
Solubility in water, g/100ml: 0.03
Vapour pressure, Pa at 30°C: <1
Octanol/water partition coefficient as log Pow: 3.3  


EXPOSURE & HEALTH EFFECTS

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

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

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

Effects of long-term or repeated exposure
 


Occupational exposure limits
TLV: 0.05 mg/m3, ppm, as TWA; (skin); A4 (not classifiable as a human carcinogen); BEI issued 

ENVIRONMENT
The substance is very toxic to aquatic organisms. Avoid release to the environment in circumstances different to normal use. 

NOTES
Depending on the degree of exposure, periodic medical examination is indicated.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
If the substance is formulated with solvent(s) also consult the card(s) (ICSC) of the solvent(s).
Carrier solvents used in commercial formulations may change physical and toxicological properties.
Do NOT take working clothes home. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: T+, N; R: 24-28-50/53; S: (1/2)-23-28-36/37-45-60-61 

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    See Also:
       Toxicological Abbreviations
       Fenamiphos (WHO Pesticide Residues Series 4)
       Fenamiphos (Pesticide residues in food: 1977 evaluations)
       Fenamiphos (Pesticide residues in food: 1978 evaluations)
       Fenamiphos (Pesticide residues in food: 1980 evaluations)
       Fenamiphos (Pesticide residues in food: 1985 evaluations Part II Toxicology)
       Fenamiphos (Pesticide residues in food: 1987 evaluations Part II Toxicology)
       Fenamiphos (Pesticide residues in food: 1997 evaluations Part II Toxicological & Environmental)
       Fenamiphos (JMPR Evaluations 2002 Part II Toxicological)