| Product Identification | Back to Contents | 【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 | Back to Contents | 【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 | Back to Contents | 【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 | Back to Contents | 【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 | Back to Contents | 【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 | Back to Contents | 【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 | Back to Contents | 【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 | Back to Contents | 【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 | Back to Contents | 【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 |
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| Company Name: |
Alfa Aesar |
| Tel: |
400-6106006 |
| Fax: |
021-67582001/03/05 |
| WebSite: |
http://chemicals.thermofisher.cn |
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