论文部分内容阅读
橄榄油是得自木犀科植物油橄榄Olea europaea Linné成熟果实的固定油。包装和贮存贮存于密闭容器中,避免过热。比重<841> 在0.910～0.915之间。棉籽油取本品5mL置于试管中,加5mL戊醇和含1％硫磺的二硫化碳溶液,混匀,小心温热以除去二硫化碳,将试管的1/3浸入煮沸的饱和氯化钠溶液中2h,混合液应无红色出现。花生油取本品10g置于装有回流冷凝器的烧瓶中,加80mL氢氧化钾醇溶液加热1h,加酚酞试剂,用1mol/L醋酸中和,将溶液洗入另一个装有120mL煮沸的醋酸铅试液的三角瓶中,煮沸1min,将三角瓶浸入冷水冷却,不时旋转内容物以使沉淀
Olive oil is a fixed oil derived from the mature fruit of the Olea europaea Linné olive oil. Packaging and storage are stored in closed containers to avoid overheating. The specific gravity <841> is between 0.910 and 0.915. Put 5mL of cottonseed oil in test tube, add 5mL of amyl alcohol and carbon disulfide solution containing 1% sulfur, mix well, carefully remove carbon disulfide, immerse 1/3 of the tube in boiling saturated sodium chloride solution for 2h, The mixture should not appear red. Peanut oil take 10g of this product placed in a flask equipped with a reflux condenser, add 80mL of potassium hydroxide alcohol solution heated 1h, add phenolphthalein reagent, neutralize with 1mol/L acetic acid, wash the solution into another with 120mL boiling lead acetate In the flask of the test solution, boil for 1 min, immerse the flask in cold water, and rotate the contents from time to time to precipitate