1. Pentane mixture by photochlorination, the pentane fraction is dehydrated with anhydrous hydrogen chloride and mixed with chlorine gas at a temperature of 120-300ºC. After cooling and distillation, the product is hydrolyzed with sodium oleate as catalyst and sodium hydroxide solution to hydrolyze the chloropentane. It is reported that the United States mainly uses this method for production. 2. Carbonyl synthesis of tetraolefin Carbonyl is treated with 65 sulfuric acid, carbonylation is carried out with cobalt salt as catalyst, water gas pressure is 14.7-19.6MPa, reaction temperature is 140-170ºC. The carbonylation reactants are treated with hydrogen or dilute sulfuric acid to decompose cobalt carbonyl into cobalt metal, which is reduced under hydrogen pressure of 17.7-19.6MPa and temperature below 180-200ºC, and then separated and refined to obtain amyl alcohol.Chemical properties Colorless liquid with fusel oil odor. Slightly soluble in water, soluble in ethanol, ether, acetone. Use as a solvent and organic synthetic raw material use GB2760-86 is specified as permitted use of edible spices. Used for chocolate, whiskey, chives, apples, nuts, noodles and other flavors. It is used as coating solvent, pharmaceutical raw material, flotation agent of non-iron metal, antifoam agent of boiler water. Uses Used as chromatographic standard reagent and analytical reagent, also used in organic synthesis for organic synthesis, solvent. High purity can be used as gas chromatographic analysis standard.
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