Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
Home > 1,1-Dimethyl-3-(3,4-Dichlorophenyl)urea > 1,1-Dimethyl-3-(3,4-Dichlorophenyl)urea(330-54-1)

1,1-Dimethyl-3-(3,4-Dichlorophenyl)urea(330-54-1)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
1,1-Dimethyl-3-(3,4-Dichlorophenyl)urea
Synonyms
3-(3,4-Dichlorophenyl)-1,1-dimethylurea
Dichlorfenidim
Heratox
CAS
330-54-1
Formula
C9H10Cl2N2O
Molecular Weight
233.1
EINECS
206-354-4
RTECS
YS8925000
RTECS Class
Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector
Merck
13,3418
Beilstein/Gmelin
2215168
Beilstein Reference
4-12-00-01263
EC Index Number
006-015-00-9
EC Class
Carcinogenic Category 3; Harmful; Dangerous for the Environment

Physical and Chemical Properties

Appearance
Diuron is a white crystalline solid. It is a wettable powder.
Solubility in water
40 mg/L
Melting Point
158 - 159
Boiling Point
385
Vapor Pressure
4E-6 (25 C)
pKa/pKb
13.55 (pKa)
Partition Coefficient
2.68
Heat Of Vaporization
63.4 kJ/mol
Usage
Herbicide.
Vapor Density
8.04
Odor threshold
Odorless

First Aid Measures

Ingestion
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
Inhalation
If symptoms develop, move individual away from exposure and into fresh air. If symptoms persist, seek medical attention. If breathing is difficult, administer oxygen. Keep person warm and quiet; seek immediate medical attention.
Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Handling and Storage

Storage
Keep in well ventilated area.
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.

Hazards Identification

Ingestion
Nausea, vomiting, and diarrhea may be noted following ingestion.
Inhalation
INHALATION: May cause irritation of nose and throat. EYES: Irritation. SKIN: Moderately irritating to skin.
Skin
Cyanosis unresponsive to oxygen therapy may be noted in patients with methemoglobinemia due to absorption of excessive amounts of these agents.
Eyes
See inhalation
EC Risk Phrase
R 22 40 48/22 50/53
EC Safety Phrase
S 13 22 37 46 60 61
UN (DOT)
3077

Exposure Controls/Personal Protection

Personal Protection
Wear appropriate eye protection and protective clothing to prevent skin and eye contact.
Respirators
Use NIOSH/MSHA approved respirator appropriate for exposure of concern.
Exposure limit(s)
NIOSH REL: TWA 10 mg/m3
Poison Class
4

Fire Fighting Measures

Flash Point
187
Fire Fighting
Extinguish fire using agent suitable for type of surrounding fire. (Material itself does not burn or burns with difficulty.)
Fire Potential
Nonflammable.

Accidental Release Measures

Small spills/leaks
Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Cover solids with a plastic sheet to prevent dissolving in rain or fire fighting water. Water spill: If dissolved, in region of 10 ppm or greater concentration, apply activated carbon at ten times the spilled amount. Use mechanical dredges or lifts to remove immobilized masses of pollutants and precipitates.

Stability and Reactivity

Incompatibilities
Incompatible with the following: Strong acids.
Stability
Stable.
Decomposition
Diuron, stable under normal conditions, decomposed on heating to 180 to 190 C giving dimethylamine and 3,4-dichlorophenylisocyanate. When heated to decomposition it emits highly toxic fumes of hydrogen chloride and nitrogen oxides.
Combustion Products
Highly toxic fumes are imminent Decomposes at 180 to 190C

Transport Information

UN Number
3077
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