Separation Techniques (Baby) This is our 3rd quarter chemistry project about separation techniques. I hope you'll find this helpful. The tune to this vid is Baby by Bieber so it'll all be easy to remember.
Extraction CHEM2050 Part III www.chem.missouri.edu Aswin Garimalla, Fifth year Graduate Teaching/Research Assistant made these videos and posted them in Youtube for the benefit of Organic Lab undergraduate students under the advise of Prof.Michael Harmata , with the help of Anne Kroeger , lab Assistant.
Barbie and Sep Funnel Safety Barbie shows what happens when you don't vent a separatory funnel
2000ML Separatory Funnel 2000ML Separatory Funnel
Make Luminol - The Complete Guide In this video we make luminol from domestically available chemicals. The process pretty complicated and dangerous at parts and so should only performed by, or under the direct supervision of, an experienced chemist. First we obtain diethylhexyl phthalate by refluxing 50g of finely cut vinyl gloves in enough isopropanol to completely cover them for at least one hour, preferably three to four. The alcohol solution of diethylhexyl phthalate is filtered and the supernatant is boiled until it reduces to half its volume. An equal amount of water along with 10g of sodium hydroxide is added and the mixture boiled for an hour. This causes the diethylhexyl phthalate to hydrolyze into phthalic acid and 2-ethylhexanol. After the solution cools it will phase separate into an aqueous layer containing disodium phthalate and an organic layer containing the alcohols. Retaining just the aqueous layer, 25mL of 12 molar hydrochloric acid is added to precipitate the phthalic acid. Chilling may be necessary. The supernatant is discarded and the residue of wet phthalic acid is purified and converted into phthalic anhydride by heating it to 300 Celsius. First the water boils off and then the phthalic anhydride evaporates and condenses on the sides of the beaker. At this point a flask of cold water is placed over the beaker to allow the phthalic anhydride to deposit on it. Periodically the phthalic anhydride deposits are harvested until no more can be obtained. 45mL of sulfuric acid along with ...
Separatory Funnel Apparatus 1000ml separatory funnel apparatus
Distillation and Use of Separatory Funnel Douglas MacArthur High chemistry teacher Susan Matthews demonstrates distillation and explains classification and separation of mixtures.
Liquid to Liquid Extraction How to do liquid to liquid extraction of solvents
Using a Separating Funnel (Southampton) A video specifically for students in the organic lab at University of Southampton
CHS-Science Equipment $6900, awarded in 2009. Includes 6 centrifuges, 10 separatory funnels, 6 Labquest units with 14 various sensors
Lec 5 | MIT 5.301 Chemistry Laboratory Techniques, IAP 2004 Reaction Work-Up I Extracting, Washing and Drying: It ain't over 'til it's over. Learn how to "work up" your reaction using a separatory funnel to perform a liquid-liquid extraction. This is one purification technique you don't want to miss! View the complete course: ocw.mit.edu License: Creative Commons BY-NC-SA More information at ocw.mit.edu More courses at ocw.mit.edu
Extraction CHEM2050 Part I www.chem.missouri.edu Aswin Garimalla, Fifth year Graduate Teaching/Research Assistant made these videos and posted them in Youtube for the benefit of Organic Lab undergraduate students under the advise of Prof.Michael Harmata , with the help of Anne Kroeger , lab Assistant.
How to Use a Sep Funnel Today, science hideout will show the proper way to use a seporatory funnel, the most elaborate piece of laboratory glassware.
FOUNTA.MOV A separatory funnel, four round-bottomed flasks, and some tubing form a closed system. One end of the tubing is immersed in an acetic acid solution that contains universal indicator. The glassware has been filled with ammonia gas. The stop*** of the funnel is closed. A small amount of water is added to the funnel above the closed stop***. The stop*** is opened and then closed, introducing the water and then closing the system. Ammonia gas dissolves into the water, reducing the pressure in the system of flasks. Atmospheric pressure pushes the acetic acid solution into the system. Ammonia gas dissolves into the solution, neutralizing the acid and turning the solution basic. As more acetic acid solution is introduced into the system, the colors continue to change. At equilibrium, the pH and therefore the color is dependent on the relative amount of ammonia gas dissolved in the solution.
Biodiesel Update - 2/18/2010 - Utah Biodiesel Supply Graydon Blair from Utah Biodiesel Supply shares news, events, and new products related to the small scale Biodiesel industry. Links from video Facebook page: Oil & Biodiesel Prices (Updated every friday): www.ams.usda.gov Intensive Biodiesel Workshop: Sustainable Biodiesel Summit: Dr. Jon Van Gerpen: University of Idaho/Iowa State University Biodiesel Workshops: www.uiweb.uidaho.edu Inline Water Strainer: 1000 mL Separatory Funnel: Glass Beakers: US Dept of Energy Fuel Prices Graph: tonto.eia.doe.gov US Dept of Energy Primer On Diesel Prices: www.eia.gov Join Our Newsletter! Utah Biodiesel Supply:
3000ml Flat Bottom Flask New 3000ml Flat Bottom Boiling Flask made of borosilicate (heat resistant) glass 24/40 Ground Glass Joint Insurance Included in Shipping & Handling! NEW right out of the original shipping box. I Offer Combined Shipping Costs
Flexibility The Thermo Scientific MaxQ 8000 shaker platforms feature exceptional flexibility including: • Ample mounting holes for adding and interchanging clamps for range of Erlenmeyer flasks, beakers, microwell plates, test tube racks and separatory funnels. • Adhesive flask mat is alternative to flask clamps for securing odd shaped objects such as bottles and volumetric flasks. • Easily removable for quick cleaning. • Constructed of 5/16" heavy-duty brushed anodized aluminum -- rust and chip-free.
How to Carry Out a Liquid/Liquid Extraction Using a Separatory Funnel Dr. Nerz at Bryn Mawr College Demonstrates How to carry out a simple liquid/liquid extraction filmed by Ian Eck
Multiple ammonia fountain You connect 4 round-bottom flasks and 1 separatory funnel with glass or rubber tubes. Than you fill the apparatus with ammonia gas, by connecting an erlenmayer flask with a ammonium hydroxide solution (ammonia water) to the separatory funnel. You open the stop*** and then heat up the ammonia. On the other and of the apparatus you put a large beaker filled with water, 20mL of acetic acid and a good amount of a universal indicator solution. Then you let the ammonia boil for about 5 minutes, so the apparatus fills with ammonia gas. After that you close the stop*** and separate the tube with the erlemayer flask from the separatory funnel. Then you put some water in the tube of the separatory funnel, and than open the stop*** so that a few droplets of water can enter. The ammonia gas dissolves in these droplets, and a vacuum forms. This leads to the suction of the acid solution in to the apparatus. As the ammonia dissolves in the solution, the pH changes to basic, and when more acid solution flows thru the flask, the pH becomes more and more acidic. Thus the color changes from green, to yellow, to orange and than to red.
Make Hydrazine Sulfate by the Hypochlorite-Ketazine Process - The Complete Guide In this video we make hydrazine sulfate by the hypochlorite ketazine process. Warning: The reaction produces toxic gases and products. It also uses corrosive chemicals, gloves must be worn. Hydrazine sulfate is a useful substitute for the more dangerous pure liquid hydrazine in chemical reactions. Simply adding in a stoichiometric amount of base will release the hydrazine in-site and allow for it to be use in for such purposes as reductions, azotizations and various other synthetic uses. The process to make hydrazine sulfate is extremely simple: Start with 250mL of ammonia and add to it 100mL of methyl ethyl ketone. Stir and then slowly add 1/4 mole equivalent of sodium hypochlorite based bleach. if using 10% bleach then about 186g is needed. If using 6% household bleach about 310g is needed. As the bleach is added the reaction will heat up and bubble vigorously, slow down the addition if it's bubbling too much. After all the bleach is added, keep stirring until the mixture stops bubbling. Then stop stirring and allow it to stand for a few hours until so until it separates into two clear layers. The top layer is methyl ethyl ketazine. Separate it using a seperatory funnel or by careful decantation. In a separate container, add 20mL of concentrated sulfuric acid to 100mL of water and stir. Then add the hot solution directly to the ketazine and keep stirring. The hydrolysis will generate crystals of hydrazine sulfate. Let solution cool to room temperature on its own and ...
5 Best Deals On Heating Mantles for 2011 Heating Mantles 01...Separatory funnel mantle for mantles with globe funnels, 6000-ml funnel, 400 watts, 230 VAC 02..Erlenmeyer flask mantle for 6000-ml flask, 390 watts, 230 VAC 03...Thermo Scientific spillproof flask/funnel heating mantles, 2000- to 5000-mL, 360/600 watts, 115 VAC 04...Thermo Scientific spillproof flask/funnel heating mantles, 500- to 1000-mL, 220/240 watts, 115 VAC 05..Erlenmeyer flask mantle for 4000-ml flask, 330 watts, 230 VAC
Exp 2 Sep Funnel Experiment 2 involves separating organic compounds in a mixture. One step will involve separating materials between two immiscible liquids. This video will explain this process and using the separatory funnel.
ACID - how to make " LSD " MANUFACTURE OF LSD Materials: 1. Ergotamine tartrate 2. Hydrazine hydrate 3. Hydrazide 4. Hydrochloric Acid 5. Sodium Nitrite 6. Sodium Bicarbonate 7. Diethylamine 8. Ether 9. Flasks 10. Filter paper 11. Heating mantle 12. 2 liter three-necked round bottom flask Time: Approximately 36 hours. Process: STEP 1: In a 2 liter three-necked round bottom flask add to 2 grams of ergotamine tartrate about 1/2 gram of hydrazine hydrate. Exercise caution when adding the hydrazine hydrate because it is very poisonous, particularly to the eyes. STEP 2: Place a condensing column on one neck of the flask. Place a stirring device in the center neck and place a separatory funnel in the thick neck. (Note: hydrazide hydrate may be added through a separatory funnel although it is not necessary.) STEP 3: Place the flask on a heating mantle and simmer the solution for 2-3 hours while stirring occasionally. STEP 4: Remove condensing column from flask and continue to cook for 10-15 minutes or until the original solution is reduced by half. STEP 5: After solution has cooled, pour the solution through filter paper and collect the crystals that formed. Wash the crystals in a small amount of absolute alcohol. STEP 6: Dissolve the crystals in about 30cc of diluted hydrochloric acid. (Note: diluted hydrochloric acid is mixed at a rate of 1 part acid to 10 or 15 parts water.) STEP 7: To the hydrochloric acid solution add about 15cc of a solution of sodium nitrite diluted in water. (Note: one part sodium ...
Extraction CHEM2050 Part II www.chem.missouri.edu Aswin Garimalla, Fifth year Graduate Teaching/Research Assistant made these videos and posted them in Youtube for the benefit of Organic Lab undergraduate students under the advise of Prof.Michael Harmata , with the help of Anne Kroeger , lab Assistant.