Separation of Casein from Milk

I. Title: Date: November 8, 2012 Name: Di Jin Section:Thursday II. use of goods and services: To attach the protein casein from a sample of draw and to puzzle out the region of casein in take out, which is the pur buzz off of this experiment. III. Materials & equipment: - draw - Water - 30 mL 95% ethanol - 15 drops Glacial acetic acid - 100 mL graduated cylinder - 125 mL Erlenmeyer flask - Bakers (50 mL and cd mL) - Electronic balance - Thermometer - piece cups - Cheese cloth - rubber band - Buchner carrying appliance: ring stand, utility clamp, filter paper, vacuum cleaner flask, buchner funnel, rubber hose, neoprene adapters(one small and one large). - Heating apparatus: bunsen burner, ring stand, ring support, wire gauze, burette clamp IV. procedure: Weigh a flask on an electronic balance. drumhead data. Using a 100 mL graduated cylinder, pecker 80 mL milk, hence pour the 80 mL milk in to the flask and weigh it again. Record data. 2. Set up the heating apparatus: A ring stand is positioned a few inches higher on the stand from the bunsen burner which is rigid at the base of the ring stand. The wire gauze is pose on the ring support. Clamping the thermometer above the beaker by using a burette clamp. 3.

Using the distilled water to fill 1/3 of a 400 mL beaker. arrogate the flask with milk in the beaker which is filled with water, and place it on the wire gauze. put in the thermometer into the milk(under the milk). Turn on the Bunsen burner and warm the milk stretch to 50~60 degrees Cels ius. 4. The milk was taken out from the w! ater, wherefore 15~20 drops glacial acetic acid were added. The milk was stirred with a stirring rod (every five drops were observed) until a white solid has formed. 5. Put cheesecloth on the top of 50 mL beaker, also using a rubberband to tie it. Separating the swimming and solid when the mixture was poured through the cheesecloth to beaker . From the process, the excess liquid stand to be poured out. 6....If you want to get a full essay, deliver it on our website: BestEssayCheap.com

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