Diuron

Diuron
3-(3,4-Dichlorophenyl)-1,1-dimethylurea
Formula	C₉H₁₀Cl₂N₂O
Structure
Description	Diuron is a white crystalline solid. It is a wettable powder.
Uses	Herbicide.

Registry Numbers and Inventories.
CAS	330-54-1
EC (EINECS/ELINCS)	206-354-4
EC Index Number	006-015-00-9
EC Class	Carcinogenic Category 3; Harmful; Dangerous for the Environment
EC Risk Phrase	R 22 40 48/22 50/53
EC Safety Phrase	S 13 22 37 46 60 61
RTECS	YS8925000
RTECS class	Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector
UN (DOT)	3077
Merck	13,3418
Beilstein/Gmelin	2215168
Beilstein Reference	4-12-00-01263
EPA OPP	35505
Swiss Giftliste 1	G-1599
Canada DSL/NDSL	DSL
US TSCA	Listed
Austrailia AICS	Listed
New Zealand	Listed
Japan ENCS (MITI)	Listed
Korea ECL	Listed

Odor Threshold Odor threshold Odorless

Hazards and Protection.
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.
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.
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	Stable.
Incompatibilities	Incompatible with the following: Strong acids.
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.

Fire.
Flash Point,°C		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.
Combustion products		Highly toxic fumes are imminent Decomposes at 180 to 190C

Health.
Exposure limit(s)	NIOSH REL: TWA 10 mg/m3
Carcinogin	CP65
Poison_Class	4
Exposure effects
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
First aid
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.