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
ICSC # 0516
CAS # 21087-64-9
RTECS # XZ2990000
UN # 3077
EC # 606-034-00-8
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
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NO open flames.
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Water spray, powder.
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Explosion
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Exposure
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PREVENT DISPERSION OF DUST!
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•Inhalation
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Ventilation (not if powder), local exhaust, or breathing protection.
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Fresh air, rest.
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•Skin
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Protective gloves.
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Rinse and then wash skin with water and soap.
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•Eyes
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Safety spectacles.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Do not eat, drink, or smoke during work.
Wash hands before eating.
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Rinse mouth.
Rest.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Do NOT let this chemical enter the environment.
Sweep spilled substance into containers; if appropriate, moisten first to prevent dusting.
Then remove to safe place.
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Store in an area without drain or sewer access.
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Xn symbol
N symbol
R: 22-50/53
S: (2)-60-61
UN Hazard Class: 9
UN Packing Group: III
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Important Data
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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
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Occupational Exposure Limits:
TLV: 5 mg/m3 as TWA; A4 (not classifiable as a human carcinogen); (ACGIH 2005).
MAK not established.
OSHA PEL: none
NIOSH REL: TWA 5 mg/m3
NIOSH IDLH: N.D. See: IDLH INDEX
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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.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Melting point: 125°C
Density: 1.28
g/cm3
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Solubility in water, g/100 ml at 20°C: 0.12
Vapour pressure, Pa at 20°C: <1
Octanol/water partition coefficient as log Pow: 1.6
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Environmental
Data
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The substance is harmful to aquatic organisms.
This substance does enter the environment under normal use. Great care, however, should be given to avoid any additional release, e.g. through inappropriate disposal.
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N O T E S
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Bay 61597, Bay DIC 1468, Bayer 94337, Bayer 6159H, Bayer 6443H, DIC 1468, Lexone, Sencor, Sencoral, Sencorer, and Sencorex are trade names.
Transport Emergency Card: TEC (R)-90GM7-III
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ADDITIONAL INFORMATION
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ICSC: 0516
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METRIBUZIN
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(C) IPCS, CEC, 1994
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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 NIOSH IDLH values.
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