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DICROTOPHOSICSC: 0872
(E)-3 (Dimethyloamino)-1-methyl-3-oxoprop-1-enyl dimethyl phosphate
Dimethyl cis-2-dimethylcarbamoyl-1-methylvinyl phosphate
March 1998
CAS #: 141-66-2
UN #: 3018
EC Number: 205-494-3

  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.  Above 93°C explosive vapour/air mixtures may be formed. Risk of fire and explosion if formulations contain flammable/explosive solvents.  NO open flames.  Above 93°C use a closed system and ventilation.  Use water spray, powder, foam, 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 Nausea. Dizziness. Vomiting. Laboured breathing. Sweating. Pupillary constriction, muscle cramp, excessive salivation. Unconsciousness. Convulsions.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin MAY BE ABSORBED! Muscle twitching. Further see Inhalation.  Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer for medical attention . 
Eyes 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.  Induce vomiting (ONLY IN CONSCIOUS PERSONS!). Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Personal protection: complete protective clothing including self-contained breathing apparatus. Do NOT let this chemical enter the environment. 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. 

According to UN GHS Criteria

 

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

STORAGE
Separated from food and feedstuffs. Keep in a well-ventilated room. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. 
PACKAGING
Do not transport with food and feedstuffs.
Marine pollutant. 
DICROTOPHOS ICSC: 0872
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
YELLOW-TO-BROWN LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
No data. 

Chemical dangers
Decomposes on heating and on burning. This produces toxic and corrosive fumes including nitrogen oxides, phosphorus oxides and carbon monoxide. Attacks some metals. May decompose on prolonged storage (see Notes). 

Formula: C8H16NO5P
Molecular mass: 237.2
Decomposes at 75°C after 31 days
Decomposes at 90°C after 7 days
Relative density (water = 1): 1.216 (15°C)
Solubility in water: miscible
Vapour pressure, Pa at 20°C: 0.013
Flash point: >93°C c.c.
Octanol/water partition coefficient as log Pow: -0.49  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol, 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 far 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: 0.05 mg/m3, as TWA; (skin); A4 (not classifiable as a human carcinogen); BEI issued 

ENVIRONMENT
The substance is toxic to aquatic organisms. This substance may be hazardous to the environment. Special attention should be given to birds. Avoid release to the environment in circumstances different to normal use. 

NOTES
The substance is stable when stored in glass or polyethylene containers up to 40°C.
Explosive limits are unknown in literature, although the substance is combustible.
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.
If the substance is formulated with solvents also consult the ICSCs of these materials.
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)-28-36/37-45-60-61 

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       Toxicological Abbreviations