IPCS INCHEM Home
ETHOPROPHOSICSC: 1660
October 2006
CAS #: 13194-48-4O-ethyl-S,S-dipropyl phosphorodithioate
Phosphorodithioic acid, O-ethyl S,S-dipropyl ester
Ethoprop
UN #: 3018
EINECS #: 236-152-1

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible. Gives off irritating or toxic fumes (or gases) in a fire. Heating will cause rise in pressure with risk of bursting.    NO open flames.    Use water spray, dry powder, carbon dioxide, alcohol-resistant foam.  In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water. 

 PREVENT GENERATION OF MISTS! STRICT HYGIENE! IN ALL CASES CONSULT A DOCTOR! 
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Dizziness. Nausea. Sweating. Muscle twitching. Pupillary constriction, muscle cramp, excessive salivation. Laboured breathing. Convulsions. Unconsciousness.  Use local exhaust or breathing protection.  Fresh air, rest. Artificial respiration may be needed. Refer immediately 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 immediately for medical attention. Wear protective gloves when administering first aid. 
Eyes MAY BE ABSORBED! 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 Abdominal cramps. Diarrhoea. Vomiting. Further 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 immediately for medical attention. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: complete protective clothing including self-contained breathing apparatus. Collect leaking and spilled liquid in sealable containers as far as possible. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. Do NOT let this chemical enter the environment. 

According to UN GHS Criteria

skull;toxiccancer;health hazenviro;aqua
DANGER
Fatal if swallowed
Fatal in contact with skin
Fatal if inhaled
Causes damage to nervous system
Very toxic to aquatic life 

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. Store in an area without drain or sewer access. Ventilation along the floor. 
PACKAGING
Do not transport with food and feedstuffs.
Marine pollutant. 
ETHOPROPHOS ICSC: 1660
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
PALE YELLOW LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
Decomposes at room temperature. This produces flammable n-propylmercaptan (see ICSC 1492). Decomposes on heating. This produces toxic fumes including phosphorus oxides and sulfur oxides. 

Formula: C8H19O2PS2
Molecular mass: 242.3
Boiling point at 0.03kPa: 86-91°C
Melting point: -13°C
Relative density (water = 1): 1.09
Solubility in water, g/100ml at 20°C: 0.075
Vapour pressure, Pa at 20-25°C: 0.05
Relative vapour density (air = 1): 8.4
Flash point: see Notes
See Notes.
Octanol/water partition coefficient as log Pow: 3.6  


EXPOSURE & HEALTH EFFECTS

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

Effects of short-term exposure
Cholinesterase inhibition. The substance may cause effects on the nervous system. This may result in convulsions and respiratory depression. 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 when dispersed. 

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


Occupational exposure limits
 

ENVIRONMENT
The substance is very toxic to 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
Do NOT take working clothes home.
The substance is combustible but no flash point is available in literature.
Depending on the degree of exposure, periodic medical examination is suggested.
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. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: T+, N; R: 25-26/27-43-50/53; S: (1/2)-27/28-36/37/39-45-60-61 

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
       Ethoprophos (Pesticide residues in food: 1983 evaluations)
       Ethoprophos (Pesticide residues in food: 1984 evaluations)
       Ethoprophos (Pesticide residues in food: 1987 evaluations Part II Toxicology)
       Ethoprophos (JMPR Evaluations 1999 Part II Toxicological)