Pyrethrum | |
| |
| Formula | Unspecified |
| Description | Refined extract is pale yellow mobile oil; unrefined extract is a dark characteristic odor of carrier. |
| Uses | Insecticide. |
| Registry Numbers and Inventories. | |
| CAS | 8003-34-7 |
| EC (EINECS/ELINCS) | 232-319-8 |
| RTECS | UR4200000 |
| RTECS class | Agricultural Chemical and Pesticide; Reproductive Effector; Human Data; Natural Product |
| Beilstein/Gmelin | NA |
| EPA OPP | 69002 |
| Canada DSL/NDSL | DSL |
| Austrailia AICS | Listed |
| New Zealand | Listed |
| Properties. | |
| Density | 0.84-0.86 g/cm3 (25% pale extract) |
| Solubility in water | Insoluble |
| Hazards and Protection. | |
| Storage | Keep in well ventilated area. Should be kept cool. Liquid extracts should be kept in dark and away from lead, zinc, and brass. |
| 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 | Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive pressure mode. Any supplied-air respirator with a full facepiece and operated in pressure-demand or other positive pressure mode in combination with an auxiliary self-contained breathing apparatus operated in pressure-demand or other positive pressure mode. |
| 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. |
| Incompatibilities | Avoid contact with ontact with strong oxidizers may cause fires and explosions. Not compatible with alkaline material. Incompatible with lime and ordinary soaps because acids and alkalies speed up processes of hydrolysis. |
| Decomposition | When heated to decomposition it emits acrid smoke and irritating fumes. Pyrethrins are decomposition by exposure to light with loss of insecticidal activity. |
| Fire. | ||||
| Flash Point,°C | 76 | |||
| Fire fighting | Self-contained breathing apparatus, rubber gloves, hats, suits and boots must be worn. Highly toxic fumes are imminent. | |||
| Fire potential | Nonflammable. | |||
| NFPA | Health | 2 | ||
| Flammability | 1 | |||
| Health. | |
| Exposure limit(s) | NIOSH REL: TWA 5 mg/m3 OSHA PEL: TWA 5 mg/m3 IDLH 5000 mg/m3 |
| Exposure effects | |
| Ingestion | Nausea, vomiting and abdominal pain commonly occur and develop within 10 to 60 minutes following ingestion. |
| Inhalation | Hypersensitivity reactions characterized by pneumonitis, cough, dyspnea, wheezing, chest pain, and bronchospasm may occur. Rare cases of respiratory failure and cardiopulmonary arrest have been reported. |
| Skin | Irritant and contact dermatitis may develop. Erythema which mimics sunburn has also been noted after prolonged repeated exposure. |
| Eyes | A stuffy, runny nose and scratchy throat following inhalational exposure may be noted. |
First aid |
|
| Ingestion | There is no specific antidote for pyrethrin poisoning. Treatment is symptomatic and supportive and includes monitoring for the development of hypersensitivity reactions with respiratory distress. Provide adequate airway management when needed. Gastric decontamination is usually not required unless the pyrethrin product is combined with a hydrocarbon. Allergic reaction: mild: antihistamines with or without epinephrine. Severe: oxygen, aggressive airway management, antihistamines, epinephrine (adult: 0.3 To 0.5 Ml of a 1:1000 solution subcutaneously; child: 0.01 Ml/kg; may repeat in 20 to 30 min), corticosteroids, ecg monitoring, and iv fluids. |
| Inhalation | Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols. |
| Skin | Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists. Vitamin e topical application is highly effective in relieving paresthesias. |
| 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. |
| Transport. | ||
| USCG CHRIS Code | PRR | |