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METHIOCARB
ICSC: 1766
Peer-Review Status: 08.06.2012 Validated
mercaptodimethur
3,5-dimethyl-4-(methylthio)phenylmethylcarbamate
4-methylthio-3,5-xylylmethylcarbamate
Phenol,3,5-dimethyl-4-(methylthio)methylcarbamate 
CAS #: 2032-65-7 UN #: 2757 (carbamate pesticide)
EINECS #: 217-991-2
    Formula: C11H15NO2S
Molecular mass: 225.3

TYPES OF
HAZARD /
EXPOSURE
ACUTE HAZARDS / SYMPTOMS      PREVENTION      FIRST AID / FIRE FIGHTING
FIRE Combustible.  NO open flames.  In case of fire in the surroundings, use appropriate extinguishing media. 
EXPLOSION Finely dispersed particles form explosive mixtures in air.  Prevent deposition of dust.   
 
EXPOSURE   AVOID EXPOSURE OF BREASTFEEDING WOMEN! AVOID EXPOSURE OF ADOLESCENTS AND CHILDREN!   
Inhalation Cough.  Avoid inhalation of dust.  Fresh air, rest. Refer for medical attention. 
Skin MAY BE ABSORBED!  Protective clothing. Protective gloves.  Remove contaminated clothes. Rinse and then wash skin with water and soap. Refer immediately for medical attention. 
Eyes Pupillary constriction. Watering of the eyes.  Wear face shield.  Rinse with plenty of water (remove contact lenses if easily possible). 
Ingestion Excessive salivation. Blurred vision. Sweating. Headache. Vomiting. Diarrhoea. Convulsions. Unconsciousness.  Do not eat, drink, or smoke during work. Wash hands before eating.  Rinse mouth. Refer immediately for medical attention. 

SPILLAGE DISPOSAL
PACKAGING & LABELLING
Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into sealable containers. If appropriate, moisten first to prevent dusting. Then store and dispose of according to local regulations.   
EC Classification
Symbol: T, N; R: 25-50/53; S: (1/2)-22-37-45-60-61 
UN Classification
UN Hazard Class: 6.1; UN Pack Group: II 
GHS Classification
Signal: Danger
Fatal if swallowed
Toxic in contact with skin
May cause damage to the nervous system
May cause damage to nervous system through prolonged or repeated exposure
May cause harm to breast-fed children
Very toxic to aquatic life 
skull;toxiccancer;health hazenviro;aqua

EMERGENCY RESPONSE SAFE STORAGE
  Separated from food and feedstuffs. Store in an area without drain or sewer access. Provision to contain effluent from fire extinguishing. 

IMPORTANT DATA
Physical State; Appearance
WHITE CRYSTALS OR FLAKES WITH CHARACTERISTIC ODOUR. 

Physical dangers
 

Chemical dangers
Decomposes on heating and on burning. On combustion, forms irritating and toxic fumes and gases of sulfur oxides including sulfur dioxide (see ICSC 0074). 

Occupational exposure limits
TLV not established.
EU OEL:. 

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

Inhalation risk
A harmful concentration of airborne particles can be reached quickly on spraying or when dispersed, especially if powdered. 

Effects of short-term exposure
Cholinesterase inhibition. The substance may cause effects on the nervous system. The effects may be delayed. 

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


PHYSICAL PROPERTIES ENVIRONMENTAL DATA
Melting point: 119°C
Solubility in water, mg/l: 27
Vapour pressure, Pa at 20°C: 0.000015
Octanol/water partition coefficient as log Pow: 3.08  
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. This substance may be hazardous to the environment. Special attention should be given to birds. 

NOTES
Specific treatment is necessary in case of poisoning with this substance; the appropriate means with instructions must be available. 

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
       Methiocarb (Pesticide residues in food: 1981 evaluations)
       Methiocarb (Pesticide residues in food: 1983 evaluations)
       Methiocarb  (JMPR Evaluations 1998 Part II Toxicological)