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DAZOMETICSC: 0786
October 1999
CAS #: 533-74-4Dimethylformocarbothialdine
Tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione
UN #: 2588
EINECS #: 208-576-7

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Combustible under specific conditions. Gives off irritating or toxic fumes (or gases) in a fire.    NO open flames.    Use water spray, powder, foam, carbon dioxide.   

 PREVENT DISPERSION OF DUST! STRICT HYGIENE!  
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation   Use local exhaust or breathing protection.  Fresh air, rest. 
Skin   Protective gloves. Protective clothing.  Remove contaminated clothes. Rinse skin with plenty of water or shower. 
Eyes Redness. Pain.  Wear safety goggles 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   Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Do NOT wash away into sewer. Sweep spilled substance into covered containers. 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: III 

STORAGE
Provision to contain effluent from fire extinguishing. Separated from acids and food and feedstuffs. Cool. Dry. Keep in a well-ventilated room. 
PACKAGING
Do not transport with food and feedstuffs. 
DAZOMET ICSC: 0786
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
WHITE OR COLOURLESS CRYSTALS. 

Physical dangers
 

Chemical dangers
Decomposes above 102°C . This produces toxic fumes including nitrogen oxides and sulfur oxides. Decomposes on contact with acids. This produces carbon disulfide. Decomposes on contact with water or moisture. This produces toxic gases. 

Formula: C5H10N2S2
Molecular mass: 162.3
Decomposes at 104-105°C
Relative density (water = 1): 1.3
Solubility in water, g/100ml at 20°C: 0.3
Flash point: 93°C
Octanol/water partition coefficient as log Pow: 1.4  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. 

Effects of short-term exposure
The substance is irritating to the eyes. 

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
Repeated or prolonged contact may cause skin sensitization. 


Occupational exposure limits
 

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

NOTES
The technical grade is 98% pure; dazomet is moderately stable but is sensitive to temperature > 35°C and to moisture.
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. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xn, N; R: 22-36-50/53; S: (2)-15-22-24-60-61 

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    See Also:
       Toxicological Abbreviations