Find the physical property data of methyl nitrite

Methyl nitrite; methyl nitrite; nitrous acid methyl ester National standard number 21048 CAS number 624-91-9 Molecular weight 61.04 Molecular formula CH3NO2 Colorless gas; boiling point -12°C; melting point -17°C;; soluble in alcohol and ether; relative density (water = 1) 0.99 (15°C); stability: stable; hazard mark: 4 (flammable gas); main uses: used in organic synthesis, and also used as therapeutic drugs (vasodilators),* * 2. Impact on the environment: 1. Health hazards. Invasion route: inhalation. Health hazards: This product mainly dilates blood vessels, causing lowering of blood pressure and tachycardia. Large doses can produce methemoglobinemia. It has been reported that after people come into contact with this product, the initial symptoms include dizziness, and later symptoms include headache, palpitations, etc. 2. Toxicological information and environmental behavior Acute toxicity: dogs inhaled 46mg/m3×2 minutes, blood pressure dropped. Subacute and chronic toxicity: rats inhaled 274.5g/m3, 6 hours/time, 13 times. Methemoglobin appeared at each exposure, accounting for 30% to 40% of the total hemoglobin, and recovered after one night. Necropsy revealed normal internal organs. Inhaled 62.4mg/m3, 15 times in 6 hours, no signs of poisoning. Mutagenicity: Microbial mutagenicity: Salmonella typhimurium 100ppm. Microsomal mutagenesis: Salmonella typhimurium 100 ppm. Hazardous characteristics: Mixed with air can form explosive mixtures. There is a risk of combustion and explosion when exposed to heat sources and open flames. It is easy to decompose when exposed to heat or light, and there is a danger of explosion when decomposed. Explodes by heat in contact with hydrazine, ammonium halide, ammonium salt, thiocyanate, ferricyanide, combustibles and oxidants. Combustion (decomposition) products: carbon monoxide, carbon dioxide, nitrogen oxides. 3. On-site emergency monitoring method: 4. Laboratory monitoring method: Gas chromatography 5. Environmental standards: The former Soviet Union (1975) workshop hygiene standard 80 mg/m3 6. Emergency treatment and disposal methods: 1. Leak emergency treatment: Quickly evacuate personnel in the leaked contaminated area to an upwind location, isolate them, and strictly restrict access. Cut off the fire source. It is recommended that emergency responders wear self-contained positive pressure breathing apparatus and fire protective clothing. Cut off the source of the leak as much as possible. Proper ventilation will speed up diffusion. Leaky containers should be properly disposed of, repaired and inspected before use. 2. Protective measures Respiratory system protection: When the concentration in the air is high, you should wear a self-priming filter gas mask (half mask). Eye protection: Wear chemical safety glasses. Body protection: Wear anti-static overalls. Hand protection: Wear chemical resistant gloves. Others: Smoking is strictly prohibited at the work site. maintain good hygiene * used. 3. First aid measures Inhalation: Leave the scene quickly to fresh air. Keep your airway open. If breathing is difficult, give oxygen. If breathing stops, perform artificial respiration immediately. Seek medical attention. Fire extinguishing method: cut off the gas source. Fire extinguishing media: foam, carbon dioxide. Buy a chemical dictionary or read it http://bbs.hcbbs.com/viewthread.php?tid=259388&page=1#pid1202534 Download a copy. This post was last edited by my sister on 2009-3-2 02:49 ]

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