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一、实验装置按下图装置。二、实验步骤1、检查装置的气密性后,取2—3ml植物油(新鲜的棉籽油、豆油或菜油)与催化剂混和均匀,放入试管内,通入强大氢气流,用沙浴加热试管,使温度在260℃左右,通氧气约20—25分钟后,取下试管,把它插入盛有冷水的烧杯里冷却,即可看到试管内有凝结的固态脂肪生成。2、如果要将制得的脂肪与催化剂分离,可在混和物中加入乙醚,将试管插存盛有热水的杯中加热,间歇地进行振荡,然后过滤。当乙醚蒸发后,从滤液里使可得到浓稠的白色脂肪。
First, the experimental device Press the device. Second, the experimental steps 1, check the airtightness of the device, take 2-3ml of vegetable oil (fresh cottonseed oil, soybean oil or vegetable oil) mixed with the catalyst evenly, into the test tube, access to strong hydrogen flow, with a sand bath heating tube , So that the temperature is about 260 ℃, about 20-25 minutes after the oxygen, remove the test tube, insert it into a beaker of cold water to cool, you can see the test tube has condensed solid fat generation. 2. If you want to separate the prepared fat from the catalyst, add diethyl ether to the mixture, heat the tube in a cup filled with hot water, shake intermittently, and then filter. When the ether evaporates, thick white fat is obtained from the filtrate.