IPCS INCHEM Home
FONOFOSICSC: 0708
O-Ethyl S-phenylethylphosphonodithioateJuly 1997
CAS #: 944-22-9
UN #: 3018
EC Number: 213-408-0

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire.        Use foam, powder, carbon dioxide.   

 PREVENT GENERATION OF MISTS! STRICT HYGIENE! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN! IN ALL CASES CONSULT A DOCTOR! 
  SYMPTOMS PREVENTION FIRST AID
Inhalation Pupillary constriction, muscle cramp, excessive salivation. Sweating. Nausea. Dizziness. Laboured breathing. Convulsions. Unconsciousness.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin MAY BE ABSORBED! Further see Inhalation.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention . 
Eyes MAY BE ABSORBED! Redness. Pain. Blurred vision.  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 Weakness. Abdominal cramps. Vomiting. Diarrhoea. Further see Inhalation.  Do not eat, drink, or smoke during work. Wash hands before eating.  Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Rest. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: complete protective clothing including self-contained breathing apparatus. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT wash away into sewer. 

According to UN GHS Criteria

 

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

STORAGE
Separated from food and feedstuffs. Keep in a well-ventilated room. 
PACKAGING
Do not transport with food and feedstuffs.
Severe marine pollutant. 
FONOFOS ICSC: 0708
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
CLEAR COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
The substance is hydrolyzed on contact with strong acids and alkalis. 

Formula: C5H5SPSCH2CH3OCH2CH3 / C10H15OPS2
Molecular mass: 246.3
Boiling point at 0.013kPa: 130°C
Melting point: 30°C
Relative density (water = 1): 1.16
Solubility in water: none
Vapour pressure, Pa at 25°C: 0.03
Flash point: 94°C c.c.
Octanol/water partition coefficient as log Pow: 3.94  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
Cholinesterase inhibition. Exposure above the OEL 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. 

Effects of long-term or repeated exposure
Cholinesterase inhibition. Cumulative effects are possible. See Acute Hazards/Symptoms. 


OCCUPATIONAL EXPOSURE LIMITS
TLV: 0.1 mg/m3, as TWA; (skin); A4 (not classifiable as a human carcinogen); BEI issued 

ENVIRONMENT
This substance may be hazardous to the environment. Special attention should be given to bees and aquatic organisms. This substance does enter the environment under normal use. Great care, however, should be taken to avoid any additional release, for example through inappropriate disposal. 

NOTES
Depending on the degree of exposure, periodic medical examination is suggested.
The symptoms of acute intoxication do not become manifest until some hours have passed.
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available.
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: 27/28-50/53; S: (1/2)-28-36/37-45-60-61 

All rights reserved. The published material is being distributed without warranty of any kind, either expressed or implied. Neither ILO nor WHO nor the European Commission shall be responsible for the interpretation and use of the information contained in this material.
    See Also:
       Toxicological Abbreviations