![]() It is considered a second-generation fuel surrogate designed to emulate the laminar flame speed, largely supplanting n-decane, primarily due to its higher molecular mass and lower hydrogen-to-carbon ratio which better reflect the n-alkane content of jet fuels. In recent years, n-dodecane has garnered attention as a possible surrogate for kerosene-based fuels such as Jet-A, S-8, and other conventional aviation fuels. One litre of fuel needs about 15 kg of air to burn (2.6 kg of oxygen), and generates 2.3 kg (or 1.2 m 3) of CO 2 upon complete combustion. It is used as a diluent for tributyl phosphate (TBP) in nuclear reprocessing plants. It is used as a solvent, distillation chaser, and scintillator component. Storage and transportation characteristics The warehouse is ventilated and dry at low temperature it is stored separately from oxidants, acids, and food additivesįire extinguishing agent dry powder, foam, carbon dioxide, sand.Dodecane (also known as dihexyl, bihexyl, adakane 12, or duodecane) is an oily liquid n- alkane hydrocarbon with the chemical formula C 12H 26 (which has 355 isomers). About 80-84g, the yield is about 80%.įlammability hazard characteristics Open flame is combustible high thermal decomposition releases sulfur oxide gas The extract is combined with crude mercaptan, washed with water, dried with anhydrous sodium sulfate, evaporated to remove benzene, distilled under reduced pressure, and the product is obtained by collecting 165-169 ℃(5.19kPa) fraction. The separated oil layer is crude mercaptan, which is extracted with benzene after acidification of the water layer. After adding 30g of sodium hydroxide and 300ml of water, the mixture is refluxed for another 2 hours. A mixture of 125g bromododecane, 38g thiourea and 250ml 95% ethanol was heated and refluxed for 3h. ![]() The production method can be synthesized in the laboratory by the following method. used as a relative molecular mass regulator for polymer compounds Used in the rubber, plastic and pharmaceutical industries Used as a polymerization regulator for synthetic rubber, synthetic fibers, and synthetic resins also used in the production of polyvinyl chloride stabilizers, drugs, pesticides, fungicides, detergents, etc. ![]() Used in rubber, plastic and pharmaceutical industries Uses Used as polymerization regulator for synthetic rubber, synthetic fiber, synthetic resin also used in the production of polyvinyl chloride stabilizers, drugs, pesticides, fungicides, detergents, etc. Soluble in methanol, ether, acetone, benzene, ethyl acetate, insoluble in water. Hydrocarbons are compounds containing hydrogen and carbon atoms only. There are no carbon to carbon double bonds. Melting point -7 ℃, boiling point 165-169 ℃(5.19kPa),142-145 ℃(2kPa), relative density 0.8450(20/20 ℃), refractive index 1.4589, flash point 87 ℃. The general formula of the homologous series of alkanes is C n H 2n+2 (a)(i) What is the meaning of the term saturated Saturated means all the carbon to carbon bonds are single. It should be stored separately from oxidants, acids and edible chemical raw materials.Ĭhemical properties colorless or light yellow liquid. It is harmful to the environment, and attention should be paid to the pollution of the water environment and aquifer. High concentrations of inhalation cause headache, nausea, vomiting, and even coma. The vapor or fog of this product is irritating to the nose and throat. Safety Steam or fog is irritating to the nose and throat. The crude product is washed, dried, distilled, and distilled under reduced pressure, which is n -12 mercaptan. After the reaction is completed, it is cooled and left to layer, and the oil layer is crude mercaptan. Preparation Bromododecane, thiourea and 95% ethanol are heated to reflux reaction, then sodium hydroxide solution is added and heated. Uses n-twelve mercaptan can be used as a relative molecular mass regulator for polymer compounds.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |