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Metribuzin

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Synonyms & Trade Names
4-Amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one
CAS No.
21087-64-9
RTECS No.
XZ2990000
DOT ID & Guide
Formula
C₈H₁₄N₄OS
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
TWA 5 mg/m3
OSHA PEL
none See Appendix G
Measurement Methods
OSHA PV2044
See: NMAM or OSHA Methods
Physical Description
Colorless, crystalline solid. [herbicide]
Molecular Weight
214.3
Boiling Point
?
Melting Point
257°F
Solubility
0.1%
Vapor Pressure
0.0000004 mmHg
Ionization Potential
?
Specific Gravity
1.31
Flash Point
NA
Upper Explosive Limit
NA
Lower Explosive Limit
NA
Noncombustible Solid
Incompatibilities & Reactivities
None reported
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
In Animals: central nervous system depression; thyroid, liver enzyme changes
Target Organs
central nervous system, thyroid, liver
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:When contaminated/Daily
Remove:When wet or contaminated
Change:Daily
First Aid
(See procedures)
Eye:Irrigate immediately
Skin:Soap wash
Breathing:Fresh air
Swallow:Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0516
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health