先把康泰克与甲苯，乙醇进行混合，然后用氢氧化钠进行调试，之后进行蒸馏，

先把康泰克与甲苯，乙醇进行混合，然后用氢氧化钠进行调试，之后进行蒸馏，会得到白色或淡黄色粉末状物品，之后加入乙醚混合，用氢氧化钠再次调试，然后进行过滤将残渣过滤掉，然后进行蒸馏（液体颜色偏黄），后可以得到，淡黄色粉末状颗粒物，然后在使用乙醚提纯过滤，就可得到白色颗粒物（粉末状），等自然风干后可以得到白色结晶

1. 准备足量的水，放冰箱冷冻，备用。将药物，将药粒倒进500毫升单口烧瓶里，然后往里面加乙醇，直到乙醇高出药粒表面2-4厘米左右，乙醇加进去之后，药粒是沉底的，很容易分辨，
2. 将烧瓶放进电热套，架好搅拌机，把搅拌叶放进去，搅拌叶离烧瓶底部一厘米左右，开动搅拌，不用太快，中速就好。之后加热，加热到液体沸腾，温度不要太高，温度不能超过70度。直搅拌到液体彻底溶解伪麻黄素，差不多半小时左右，停止加热。密封保存5-8小时。
3..保存时间到时，抽滤掉药渣，如难以抽滤可选择过滤，用很细很细的布即可。把过滤出的液体倒进烧杯里，稍微加热。将准备好的冰水拿出来，看下液体有多少毫升，例如有200毫升液体，就加进200毫升的冰水，然后用玻璃棒快速搅拌，边加热边搅拌，慢慢的，液体里有杂质析出。抽滤掉杂质，剩透明的葡萄酒般颜色的液体。
3. 接下来蒸馏掉乙醇，之前我们加的是200毫升乙醇，加上冰水，一共400毫升，将烧杯放进电热套加热，温度控制好，不要让液体沸腾就行，乙醇的沸点比水低，乙醇会先被蒸馏出来，等烧杯里的液体剩200时候，靠进去闻闻，如果没有酒精的味道，那证明乙醇被蒸馏掉了，蒸馏好后，放置冷却，抽滤一遍，
4然后往液体倒氢氧化钠，加氢氧化钠的时候要注意，放的时候要慢，搅拌速度要快，直到氢氧化钠全部溶解，然后用玻璃棒粘点液体，涂在PH试纸上，PH试纸变色，根据颜色对照PH试纸盒上的比色板，直到PH=13，此时液体有沉淀物产生，然后抽滤，碱性的伪麻黄素全部在滤纸上，取出，烤干，
5用1比1乙醇溶解，然后滴加盐酸，边加边测液体的PH值，直到显示酸性PH=3。然后蒸馏乙醇，等蒸的剩3分1左右的时候，停止蒸馏，拿起来冷却。等待结晶，晶体就是我们要的素了，全部结晶后把晶体过滤出来，低温烤干备用，剩的那些乙醇，加热浓缩一下，在冷却，就又用晶体析出

結果 (英文) 1:

First put Contac and toluene, ethanol for mixed, then with hydrogen oxidation sodium for debugging, zhihou for distillation, will get white or light yellow powder-like items, zhihou joined ether mixed, with hydrogen oxidation sodium again debugging, then for filter will residue filter off, then for distillation (liquid color partial yellow), Hou can get, light yellow powder-like particles real, then in using ether purification filter, on can get white particles real (powder-like),, natural dried Hou can get white Crystal1. prepare sufficient quantities of water, refrigerator freezer, and set aside. The drug, pour the grains into stand-up 500 ml flask, then add alcohol, until the grains surface 2-4 cm higher ethanol, ethanol added after, grains were sunk, it's easy to tell,2. place the flask into electric sets, good mixer, leaf in stirring, stirring drag a centimeter or so, starting stirring, not too fast, speed is good. After heating, heated to boiling liquids, temperature is not too high, temperature should not exceed 70 degrees. Stir until the liquid completely dissolve pseudoephedrine, almost half an hour or so, stop heating. Sealed 5-8 hours.3. When you save the time, filter out residue, such as difficult to filter, select the filter, with a very fine and very fine cloth. Pouring liquid into beaker filtered, heated slightly. Take out the ice water will be ready, look at how many ml of liquid, such as 200 ml of liquid, add 200 ml of water, then rapid stirring with a glass rod and heat while stirring, slowly, there are impurities in the liquid precipitation. Filter out impurities, transparent color like wine liquid left.3. next distillation off ethanol, zhiqian we added of is 200 ml ethanol, plus ice water, altogether 400 ml, will beaker put into electric sets heating, temperature control good, don't let liquid boiling on line, ethanol of boiling point than water low, ethanol will first was distillation out,, beaker in of liquid left 200 when, by in smell smell, if no alcohol of taste, that proved ethanol was distillation off has, distillation good Hou, placed cooling, pumping filter a again,4 then to liquid pour sodium hydroxide, added hydrogen oxidation sodium of when to note, put of when to slow, mixing speed to fast, until sodium hydroxide all dissolved, then with glass rod stick points liquid, coated in PH strips Shang, PH strips color, according to color control PH try tray Shang of than color Board, until PH=13, at liquid has sediment produced, then pumping filter, alkaline of pseudo ephedrine all in filter paper Shang, out, roast dry,5 1:1 alcohol dissolves, then add hydrochloric acid, plus side measuring liquid PH value until the acid PH=3. And then distilling alcohol, steamed for about 3 left 1 time, stopping distillation, cooling. Waiting for the Crystal, the Crystal is the element we want, after all the crystals filter out Crystal, baking dry and left those of ethanol, heat concentrated, cooling and crystallizing

結果 (英文) 2:

First contac with toluene, ethanol were mixed, and then neutralized with sodium hydroxide to debug, followed by distillation, will be white or light yellow powder articles, mixing after addition of diethyl ether, neutralized with sodium hydroxide debugging again, then filtered and the residue filtered, and then subjected to distillation (liquid color yellow), you can get back, pale yellow powder particles, and then use the ether purification filter, you can get a white particulate matter (powdered), can be obtained as white crystals after natural dried 1. Prepare a sufficient amount of water, fridge freezer and set aside. The drug, the drug granules poured into 500 ml single-necked flask, and then fill it with ethanol, drug particle surface until the ethanol was up 2-4 centimeters, then ethanol added, prills is sink to the bottom, it is easy to distinguish, 2 . The flask into the heating units, stand a good mixer, the mixing leaves into them, stirring the leaves about one centimeter from the bottom of the flask, starting stirring, not too fast, the speed is good. After heating, the liquid was heated to boiling temperature not too high, the temperature should not exceed 70 degrees. Stirring until the liquid is completely dissolved straight pseudoephedrine, almost half an hour or so, stop heating. Sealed 5-8 hours. 3 .. Save time to time, pumping filtered dregs, such as the difficulty optional suction filtered, washed with very thin cloth can be. The filter out of the liquid poured into a beaker, a little heated. The prepared ice out, look how many ml of liquid, for example, 200 ml of liquid, then add 200 ml of ice water, then quickly stirred with a glass rod, while heating with stirring, slowly, liquid there impurity precipitation. Pumping filtered impurities, remaining transparent wine-colored liquid. 3. Next, ethanol was distilled off, before we added 200 ml of ethanol, combined with ice water, a total of 400 ml, the beaker was placed in an electric heating jacket, temperature control is good, do not let the liquid boil on the line, the boiling point of ethanol is lower than that of water ethanol can be distilled off first, and so beaker of liquid left 200 time, go by smell, if there is no taste of alcohol, that proof ethanol is distilled off, the distillation is completed, allowed to cool, suction again, then go 4 pour liquid sodium hydroxide, sodium hydroxide plus time to pay attention, to put the time to slow faster stirring until completely dissolved sodium hydroxide and then with a glass rod sticking point of the liquid, painted on the PH test paper, PH test strips change color , according to the color swatches PH test than the control on the tray until PH = 13, this time the liquid has precipitates, then filtration, pseudoephedrine basic all on the filter, remove, dried, 5 with 1 more than 1 ethanol solution, then a solution of hydrochloric acid, while adding value side PH Measuring liquid until acidic PH = 3. Then distilled ethanol, and other leftover steamed about 3 minutes a time, stop distillation, to take up the cooling. Wait crystal, the crystal is that we want prime, and after all the crystallization of the crystals were filtered out, cold roast spare, those leftover ethanol, concentrated by heating it, cooling, and again with the crystal precipitation

結果 (英文) 3:

First contac with toluene and ethanol were mixed and then with sodium hydroxide for debugging, after distillation will be white or light yellow powder goods, after join ether is mixed, with sodium hydroxide to debug again, and then filtered out filtration residue, then distillation (liquid color slants yellow) can be obtained, the pale yellow powder particles, and in the use of ether purification filters, you can get the white particles (powder), and other natural dried can get white crystalline

1. prepare adequate water, fridge freezer, prepared with. The drug, the grains were poured into a 500 ml flask,And inside it with ethanol, until the ethanol higher grain surface 2-4 cm, ethanol added after, the pill is to sink to the bottom, it is easy to distinguish,
2. The flask into the electric jacket, stand a good mixer, the mixing blade inside, stirring leaf one cm from the bottom of the flask, stirring, not too fast medium speed, good. After heating, heated to the liquid boiling, the temperature is not too high, the temperature can not exceed 70 degrees. Straight until completely dissolved liquid pseudo ephedrine, about half an hour or so, stop heating. Sealed 5-8 hours.
3.. Save time, filtering out the dregs, such as the difficulty of filtering can choose to filter,Can be used very thin and very thin. The filtered liquid poured into the beaker, heated slightly. Will be ready to take out the ice water, see how many ml of liquid, such as 200 ml of liquid, add 200 ml of ice water, and then quickly stir with a glass rod, while heating and stirring, slowly, there are impurities in the liquid precipitation. Filter out impurities, left Wine transparent colored liquid. . then distilled off alcohol, before we add 200 ml of ethanol, and ice water, a total of 400 ml, beaker heating, temperature control, do not let the liquid boiling on the line, the boiling point of ethanol than water lowDiscoloration of liquid sodium hydroxide, ethanol is distilled, beaker liquid left 200, on into the smell, if there is no alcohol taste, that ethanol was distilled off, distilled, placed cooling, filtration and again 4 and then to pour liquid sodium hydroxide, and sodium hydroxide to note that the time to slow stirring speed faster, until completely dissolved, and then with glass rods glued, painted on the pH test paper, pH test paper, according to the contrast of color pH test paper box on the shade guide, until the PH=13 at this time liquid has the precipitate produced, and then filtered, alkaline pseudo ephedrine in filter paper, take out, dried,
5 in 1 than in 1 ethanol solution, then adding hydrochloric acid, while still measuring pH, until the acid PH=3. And then distilled ethanol, and so on the left of the remaining 3 minutes about 1 minutes, to stop the distillation, take up cooling. Wait for the crystallization, crystal is we want vegetarian, after all the crystallization to filter out the crystal, low temperature dried standby, left to those of ethanol, heating concentrated, on cooling, and with crystal precipitation