| [Fire Fighting] Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire. | |
| [Fire Potential] Active ingredient and dry formulations are non-flammable; the liquid formulation (hyvar-xl) is a combustible mixture which should be kept away from heat and open flame. | |
| [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. | |
| [Storage] Store in cool, dry place. Exposure of water-soluble formulations to air can cause some loss of water solubility. | |
| [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. | |
| [Ingestion] Nausea, vomiting, and diarrhea may be noted following ingestion. | |
| [Inhalation] Symptoms: irritation eyes, skin, upper respiratory system; in animals: thyroid injury Target Organs: Eyes, skin, respiratory system, thyroid. | |
| [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. | |
| [Personal Protection] Wear appropriate personal protective clothing to prevent skin contact. | |
| [Respirators] Use NIOSH/MSHA approved respirator appropriate for exposure of concern. | |
| [Exposure limit(s)] NIOSH REL: TWA 1 ppm (10 mg/m3) | |
| [Poison Class] 4 | |
| [Appearance] Colorless to white odorless crystalline solid. Commercially available as a wettable powder or in liquid formulations. | |
| [Solubility in water] 800 mg/L | |
| [Melting Point] 158 - 159 | |
| [Boiling Point] 411 | |
| [Vapor Pressure] .0000003 | |
| [Density] 1.55 g/cm3 (20 C) | |
| [pKa/pKb] 9.30 (pKa) | |
| [Partition Coefficient] 2.11 | |
| [Usage] Herbicide. | |
| [Product Name] 5-Bromo-6-methyl-3-(1-methylpropyl)-2,4(1h,3h)-pyrimidinedione | |
| [Synonyms] 5-Bromo-3-sec-butyl-6-methyluracil 5-Bromo-6-methyl-3-(1-methylpropyl)uracil Herbicide 976 Hyvar X Hyvarex | |
| [CAS] "CASEN_314-40-9.htm">314-40-9 | |
| [Formula] C9H13BrN2O2 | |
| [Molecular Weight] 261.12 | |
| [EINECS] 206-245-1 | |
| [RTECS] YQ9100000 | |
| [RTECS Class] Agricultural Chemical and Pesticide; Mutagen; Reproductive Effector | |
| [Merck] 12,1402 | |
| [Beilstein/Gmelin] 647896 | |
| [Beilstein Reference] 5-24-07-00040 | |
| [Small spills/leaks] Evacuate area and ventilate. Wear protective equipment. If required, use an inert absrobent. Sweep up and place in an appropriate container for disposal. Wash contaminated surfaces. | |
| [Stability] Stable up to MP and slowly sublimes @ temperature just below its MP active ingredient is chemically stable under normal storage conditions stable in aqueous bases. Slowly decomposed by concentrated acids. | |
| [Incompatibilities] Strong oxidizing agents. | |
| [Decomposition] When heated to decomposition it emits very toxic fumes of hydrogen bromide and nitrogen oxides. |
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