Isolation of Trimyristin from Nutmeg and Its Hydrolysis to Myristic Acid Compounds having complex molecular structures can be separated from natural materials. Usually they are components of very complex mixtures. To obtain pure compounds, long, tedious separation and purification procedures are often required. The triester, trimyristin, is however an exception and can be extracted from ground nutmeg seeds with tert-butyl methyl ether. Crystallization from acetone yields the pure compound.
While stirring, 6 M NaOH was added drop-wise until the solution became basic, turning red litmus paper blue. A total of 3.84 mL NaOH was required to achieve this; the resulting solution appearing dark blue with cloudy precipitates. The solution was then heated gently atop a hot plate to catalyze the next reaction, with care taken to assure all residue was kept off the walls of the beaker. Heating continued until the reaction reached completion and the solution slowly changed from blue to a dark green and finally black. At this point the heat was turned off to allow the black solid in the beaker, CuO, to settle to the bottom.
You need 3 eggs, a bag of pecans, a bag of coconut, 1/2 stick of butter, a greased 9 by 13 inch pan, a measuring cup, a mixing bowl, and a whisk or an electric mixer. What you want to do first is mix your cake mix, water, oil and eggs in your bowl until moistened. You want to be sure to stir for at least two minutes so you make sure everything is mixed together and you don’t have lumps of cake mix in your cake after you’ve cooked it. If you see lumps, you just have to crush them with a spoon against the side of the bowl. You want to be sure to scrape the sides of the bowl to get all the extra mix off the sides and bottom.
Use the 1.0mm opening for 1.6mm fiber. Also trim the Kevlar to the ‘C’ length using the electrician style scissors. * Using the marker pen and the template card provided, measure and mark the buffer strip length as shown on the template. * Using the buffer strippers, strip off the buffer in at least two pieces. * Using a dry, lint-free wipe; Remove any remnants of the protective coating on the fiber after stripping the buffer.
2.pour 2 cups of sugar in sauce pan and stir.the solution should look cloudy at first then i will become clear .then keep stirring for 2 minutes 3.After the sugar is dissolved pour the solution into the jar. 4.seed one stick by covering it in sugar.set the non seeded stick aside 5.insert the seeded stick into the center of the lid and cover all holes. 6complete steps 1-4 and insert non seeded stick. For best results let it sit for a week or more (seeded) Observations Day 1(sugar solution made) During the first 2 hours tiny crystals started to form Day 2 The sugar is starting to form Day 3 The crystals are a little bigger the day before Day 4 On the fourth day there is an increase of the amount of
magnets zipper locking plastic bags beakers Petri dishes micro spatulas tongs 13- x 100-mm test tubes; rubber or cork stoppers to fit rings, ring stands, gauzes, burners, ignitors ice paper towels filter paper funnels Using this equipment, devise a procedure for the separation of the four substances. Design experiments, and write procedures for the designs. Ask the instructor to approve each experimental design. Questions Explain why the sodium chloride is contaminated with benzoic acid. Suppose sawdust from wood less dense that water were incorporated into the mixture.
Slowly pour the beaker contents into the drip paper. Make sure every piece is out of the beaker. 10. Remove the funnel from the drip and the filter paper from the funnel. Allow the filter paper to dry overnight.
Then measure the distance of each pigment starting at the bottom of the pigment origin to the bottom of the separated pigment band. In Exercise 4B: Photosynthesis/ The Light Reaction, chloroplasts are extracted from spinach leaves and incubated with DPIP in the presence of light. The spectrophotometer should be warmed up and set the wavelength to 605 nm. An incubation area should be set up, that includes a light, water flask, and test tube rack. We were provided with two beakers, one containing a solution of boiled chloroplasts and
Allow the splint to burn until the color fades. Don’t let any solids to fall into the burner. -Soak the wooden splint in the “rinse water” to put it out completely; move it to trash. -Record observations on flame color produced by the metallic salt in the Data Table. -Repeat above steps (middle section) for all metallic salts (five total).
When the roots are good and thick and the stem has leaved out, your avocado is ready for potting. Use a terracotta pot with a top diameter of about 10 inches. Put broken crockery around the drainage hole in the bottom of the pot and fill with soil rich in humus, leaving enough space for the seed and roots. Place the seed gently on top of the soil, taking care not to injure the roots. Carefully add soil until the seed is half covered, but do not tamp it down.