International Chemical Safety Cards

METRIBUZIN ICSC: 0516

METRIBUZIN
4-Amino-6-tert-butyl-3-methylthio-as-triazin-5-one
4-Amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one
C8H14N4OS
Molecular mass: 214.3
CAS # 21087-64-9
RTECS # XZ2990000
ICSC # 0516
EC # 606-034-00-8
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Combustible.
NO open flames.
Water spray, powder.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST!

  • INHALATION

    		• Local exhaust or breathing protection.
    		Fresh air, rest. Refer for medical attention.
  • SKIN

    		• Protective gloves.
    		Rinse and then wash skin with water and soap.
  • EYES

    		• Safety spectacles.
    		First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION

    		• Do not eat, drink, or smoke during work. Wash hands before eating.
    		Rinse mouth. Rest. Refer for medical attention.
    SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Do NOT wash away into sewer. Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting. Then remove to safe place.


    Xn symbol
    R: 22
    S: (2)
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0516 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

    International Chemical Safety Cards

    METRIBUZIN ICSC: 0516

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    PHYSICAL STATE; APPEARANCE:
     COLOURLESS TO WHITE CRYSTALS , WITH CHARACTERISTIC ODOUR.

    PHYSICAL DANGERS:

    CHEMICAL DANGERS:
     The substance decomposes on burning producing toxic fumes including nitrogen oxides and sulfur oxides.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV: ppm; 5 mg/m3 (as TWA) (ACGIH 1997).
    OSHA PEL: none
    NIOSH REL: TWA 5 mg/m3
    NIOSH IDLH: No data


    		ROUTES OF EXPOSURE:
     The substance can be absorbed into the body by inhalation of its aerosol and by ingestion.

    INHALATION RISK:
     Evaporation at 20°C is negligible; a harmful concentration of airborne particles can, however, be reached quickly.

    EFFECTS OF SHORT-TERM EXPOSURE:
     Exposure at high levels may result in depression of the central nervous system.


    PHYSICAL
    PROPERTIES
    Melting point: 125°C
    Relative density (water = 1): 1.28
    		 Solubility in water, g/100 ml at 20°C: 0.12
    Vapour pressure, Pa at 20°C: <1
    ENVIRONMENTAL
    DATA
         		The substance is harmful to aquatic organisms. Avoid release to the environment in circumstances different to normal use.
    N O T E S
    Bay 61597, Bay DIC 1468, Bayer 94337, Bayer 6159H, Bayer 6443H, DIC 1468, Lexone, Sencor, Sencoral, Sencorer, and Sencorex are trade names.
    ADDITIONAL INFORMATION


    ICSC: 0516 METRIBUZIN
    © IPCS, CEC, 1993
    IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and IDLH values.