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BENTAZONEICSC: 0828
3-Isopropyl-1H-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide
1H-2,1,3-Benzothiadiazin-4(3H)-one, 3-(1-methylethyl)-, 2,2-dioxide
Bendioxide
September 1997
CAS #: 25057-89-0
EC Number: 246-585-8

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire.  Risk of fire and explosion if formulations contain flammable/explosive solvents.      Use water spray, powder, foam, carbon dioxide.   

 AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!  
  SYMPTOMS PREVENTION FIRST AID
Inhalation   Avoid inhalation of dust and mist. Use local exhaust or breathing protection.  Fresh air, rest. Refer for medical attention. 
Skin   Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Redness. Pain.  Wear safety goggles.  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.  Give one or two glasses of water to drink. Refer for medical attention . 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Do NOT wash away into sewer. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. Personal protection: chemical protection suit including self-contained breathing apparatus. 

According to UN GHS Criteria

 

Transportation
UN Classification
 

STORAGE
Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. 
PACKAGING
Do not transport with food and feedstuffs. 
BENTAZONE ICSC: 0828
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
COLOURLESS-TO-WHITE CRYSTALLINE POWDER. 

Physical dangers
 

Chemical dangers
Decomposes on heating and on burning. This produces toxic fumes including sulfur oxides and nitrogen oxides. 

Formula: C10H12N2O3S
Molecular mass: 240.3
Decomposes at 200°C
Melting point: 137-139°C
Solubility in water: none
Vapour pressure, Pa at 20°C: <0.001
Octanol/water partition coefficient as log Pow: -0.46  


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation 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 on spraying or when dispersed, especially if powdered. 

Effects of long-term or repeated exposure
 


OCCUPATIONAL EXPOSURE LIMITS
 

ENVIRONMENT
Avoid release to the environment in circumstances different to normal use. 

NOTES
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; R: 22-36; S: (2)-24-37-61 

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    See Also:
       Toxicological Abbreviations
       Bentazone (HSG 48, 1990)
       Bentazone (Pesticide residues in food: 1991 evaluations Part II Toxicology)