![]() ![]() ![]() Inhalation: Remove from site to fresh air. seek medical attention.Įye Contact: Pull eyelids and rinse with running water for 15 minutes. Skin Contact: Wash thoroughly with soap and water. Others: Smoking, eating and drinking are prohibited at the workplace. Respiratory Protection: Masks should be worn.Įye Protection: Generally, no special protection is required. If there is a large amount of leakage, use the embankment to contain it, and then collect, transfer, recycle or waste it after harmless treatment. Scrub the spilled contaminated area with water, and put the diluted sewage into the waste water system. Absorb with sand, shovel into buckets, and transport to waste disposal sites. It is recommended that emergency responders wear masks, goggles, and work clothes. Emergency release treatmentĮvacuate personnel from the leaked contaminated area to a safe area, and prohibit irrelevant personnel from entering the contaminated area. Dodecane will be decomposed by high heat, thereby releasing toxic fumes. The vapor of dodecane will form an explosive mixture with air, which may cause fire and explosion in case of open flame, high heat or contact with oxidant. When inhaled by rabbits, acute poisoning events with LC50: >142ppm/8H occur. Toxicological informationĭodecane is irritating, and 50ul/24H dodecane will produce moderate irritation in the dodecane transdermal experiment in rabbits. May be harmful and irritating when inhaled, ingested or absorbed through the skin. The main routes of entry of dodecane include inhalation, ingestion, and percutaneous absorption. Keep away from sources of ignition when storing and using dodecane. And make sure that the workplace containing dodecane has good ventilation. Picture 2 preparation method by 1-bromohexane How to store dodecaneĭodecane needs to be sealed and stored in a cool, dry place. Use 23g (1.0mol) sodium metal with 82.5g (62mL, 0.5mol) 1-bromohexane (2) or 99g (65.5mL, 0.5mol) 1-bromopentane according to the above-mentioned operation method for preparing n-octane, The fractions at 94☌/174KPa were collected to obtain about 37g of n-decane (1) with a yield of 87%. Picture 1 preparation method by hexamethylphosphoramide Other functional groups in the molecule such as carboxyl, carboxylate, cyano group, nitro group, amido group, carbonyl group, oxiranyl group, etc. Note: ①Reduction of alkyl halides and sulfonates with sodium cyanoborohydride in hexamethylphosphoramide is a convenient method for preparing alkanes with high selectivity. The organic extracts were combined, washed twice with water, dried over anhydrous magnesium sulfate, distilled under reduced pressure, and the fractions at 79-81☌/1.86KPa were collected to obtain n-dodecane (1) 2.5-2.65g, yield 79%-81 %. After cooling, 50 mL of water was added and extracted three times with n-hexane. The reaction was carried out at 80 ☌ for 2 h with stirring. In a dry reaction flask equipped with a stirrer, a thermometer, and a reflux condenser (with a calcium chloride drying tube), add 50 mL of hexamethylphosphoramide (HMPA), n-dodecyl p-toluenesulfonate (2) 6.8 g (0.0201mol), sodium cyanoborohydride ① 5.02g (0.08mol). Dodecane is stable at normal temperature and pressure, but avoids contact with strong oxides. Therefore, attention should be paid to preventing human poisoning when dodecane is burned. Carbon monoxide can combine with platelets in human blood and cause human poisoning. The combustion products of dodecane are generally carbon monoxide and carbon dioxide. Used as a reference material for organic synthesis intermediates, solvents and chromatographic analysis. Insoluble in water, soluble in ethanol, ether, acetone, chloroform, carbon tetrachloride and benzene. Dodecane is a colorless liquid with a melting point of -9.6☌, a boiling point of 216.3☌, a flash point of 71☌, a density of 0.753g/cm3, and a vapor pressure of 0.133kPa/47.8☌. Dodecane is an organic compound with a chemical formula of C12H26 and a molecular weight of 170.33.
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