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ETHOPROPHOS
ICSC: 1660
Peer-Review Status: 11.10.2006 Validated
O-ethyl-S,S-dipropyl phosphorodithioate
Phosphorodithioic acid, O-ethyl S,S-dipropyl ester
Ethoprop 
CAS #: 13194-48-4 RTECS #: TE4025000
UN #: 3018
EC #: 015-107-00-8
EINECS #: 236-152-1
    Formula: C8H19O2PS2
Molecular mass: 242.3

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE 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. 
EXPLOSION     In case of fire: keep drums, etc., cool by spraying with water. NO direct contact with water. 
 
EXPOSURE   PREVENT GENERATION OF MISTS! STRICT HYGIENE!  IN ALL CASES CONSULT A DOCTOR! 
Inhalation Dizziness. Nausea. Sweating. Muscle twitching. Pupillary constriction, muscle cramp, excessive salivation. Laboured breathing. Convulsions. Unconciousness.  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
PACKAGING & 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.  Do not transport with food and feedstuffs.
Marine pollutant. 
EC Classification
Symbol: T+, N; R: 25-26/27-43-50/53; S: (1/2)-27/28-36/37/39-45-60-61 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: I 
GHS Classification
Signal: Danger
Fatal if swallowed
Fatal in contact with skin
Fatal if inhaled
Causes damage to nervous system
Very toxic to aquatic life 
skull;toxiccancer;health hazenviro;aqua

EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-G1GT6-I.  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. 

IMPORTANT DATA
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. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

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. 

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

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. 

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


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
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  
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
 

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
       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)