NIOSH Publication No. 2005-151:

NIOSH Pocket Guide to Chemical Hazards

September 2005

Diuron

CAS
330-54-1

C6H3Cl2NHCON(CH3)2

RTECS
YS8925000
Synonyms & Trade Names

3-(3,4-Dichlorophenyl)-1,1-dimethylurea; Direx®; Karmex®
DOT ID & Guide

Exposure
Limits

NIOSH REL: TWA 10 mg/m3
OSHA PEL: none
IDLH
N.D. See: IDLH INDEX
Conversion
Physical Description
White, odorless, crystalline solid. [herbicide]
MW: 233.1
BP: 356°F (Decomposes)
MLT: 316°F
Sol: 0.004%
VP: 0.000000002 mmHg
IP:?

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

Noncombustible Solid
Incompatibilities & Reactivities

Strong acids
Measurement Methods
NIOSH 5601; OSHA PV2097
See: NMAM or OSHA Methods
Personal Protection & Sanitation
(See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: Daily
Remove: No recommendation
Change: Daily

First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Water flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations
Not available.
Important additional information about respirator selection
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
Irritation eyes, skin, nose, throat; in animals: anemia, methemoglobinemia
Target Organs
Eyes, skin, respiratory system, blood
See also: INTRODUCTION