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BENTAZONE
ICSC: 0828
Peer-Review Status: 04.09.1997 Validated
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 
CAS #: 25057-89-0 RTECS #: DK9900000
EC #: 613-012-00-1
EINECS #: 246-585-8
    Formula: C10H12N2O3S
Molecular mass: 240.3

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire.    Use water spray, powder, foam, carbon dioxide. 
EXPLOSION Risk of fire and explosion if formulations contain flammable/explosive solvents.     
 
EXPOSURE   AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!   
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
PACKAGING & 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.  Do not transport with food and feedstuffs. 
EC Classification
Symbol: Xn; R: 22-36; S: (2)-24-37-61 
UN Classification
 
GHS Classification
 

EMERGENCY RESPONSE SAFE STORAGE
  Provision to contain effluent from fire extinguishing. Separated from food and feedstuffs. 

IMPORTANT DATA
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. 

Occupational exposure limits
TLV (NOT-ESTABLISHED):. 

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

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

Effects of long-term or repeated exposure
 


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
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  
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.
Adagio, Basagran, Pledge are trade names.
Card has been partially updated in March 2008: see Packaging & labelling. 

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