NIOSH Pocket Guide to Chemical Hazards

Metribuzin

CAS 21087-64-9

C8H14N4OS

RTECS XZ2990000
Synonyms & Trade Names
4-Amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one
DOT ID & Guide

Exposure
Limits

NIOSH REL: TWA 5 mg/m3
OSHA PEL†: none
IDLH N.D. See: IDLH INDEX Conversion
Physical Description
Colorless, crystalline solid. [herbicide]
MW: 214.3
BP: ?
MLT: 257°F
Sol: 0.1%
VP: 0.0000004 mmHg
IP: ?

Sp.Gr: 1.31
Fl.P: NA
UEL: NA
LEL: NA

Noncombustible Solid
Incompatibilities & Reactivities
None reported
Measurement Methods
OSHA PV2044
See: NMAM or OSHA Methods
Personal Protection & Sanitation (See protection)
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
Important additional information about respirator selection
Respirator Recommendations Not available.
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
See also: INTRODUCTION   See ICSC CARD: 0516