Mastering the Art of Negotiation Did you know that 70% of managers expect a salary and benefits negotiation when they make a job offer? You want to be better at conducting a negotiation, but you’re not sure where to start when learning how to negotiate.Most people think that they just need to be aggressive and push for what they want in order to get the best deal. However, this can often lead to bad deals or no deal at all.Mastering the art of negotiation is all about understanding the other person’s needs and wants, and then finding common ground. Keep…
Author: Ethan Frank
Preparation of phthalimide phthalimide: In a three-necked flask fitted with thermometer, gas introduction tube, and wide outlet tube bent downward, 148 grams (1.0 mole) of pure phthalic anhydride is melted and heated to about 170°. At this temperature a rapid stream of ammonia is passed into the molten phthalic anhydride. The ammonia is completely absorbed and steam escapes, carrying with it some phthalic anhydride. Sublimed material which condenses in the neck of the flask is melted down from time to time. During the introduction of the ammonia, the temperature is raised slowly until it reaches 240°. At this point, the phthalimide does not solidify since its melting point is 230°. When ammonia begins to escape, the reaction is nearly complete. The stream of ammonia is…
Preparation of phosphorus tribromide phosphorus tribromide: A 500 ml three-necked flask, fitted with a mechanical stirrer, a dropping funnel and a reflux condenser, 28 grams of pure red phosphorus, and 200 ml of dry carbon tetrachloride (dried over anhydrous calcium chloride) are placed. 198 grams (or 63.5 ml) of dry bromine are placed in the dropping funnel and added to the vigorously stirred mixture of red phosphorus in tetrachloromethane at the rate of about few drops per second. After all the bromine has been added, the reaction mixture is refluxed for 15 minutes at 80-90° C. The clear solution is then…
A Guide to Successfully Hiring a Digital Marketing Agency When you are looking at hiring a digital marketing agency, there may be lots of questions you want to answer. You may also be unsure about what process to follow or even where to start. To get the most out of those digital efforts, you must choose an agency that understands your business and aims. Decide What You Want and Need Knowing what you want to achieve is important. Before you start contacting agencies, you are going to need to establish what you need and want. For instance, are you looking…
Preparation of succinimide 20 g of succinic acid are dissolved in a small quantity, of water in a basin, and the solution neutralised with ammonia. The solution is boiled to expel excess of ammonia, after which a further 20 g of succinic acid dissolved in water are added. The solution is evaporated to complete dryness on a water bath; the dry residue is transferred to a retort and heated quickly with a large luminous flame. The sublimate of succinimide is recrystallised from pure acetone. Yield 70%, colourless rhombic plates; m.p. 126° C; b.p. 288° C. Systematic organic chemistry, by W. M.…
Preparation of Pyridinium Tribromide Pyridinium Tribromide: To the 1 liter round bottom flask equipped with a reflux condenser and a dropping funnel 79.1 g of pyridine were placed, and while cooling the flask with ice-water, slowly from a dropping funnel 113 ml of 48% hydrobromic acid was added. Then, the reflux condenser is removed and replaced with distillation head. Water was distilled under vacuum by heating the flask in an oil or glycerol bath to 160 ° C. Pyridinium Tribromide: After distillation the flask should remain completely dry with pyridine hydrobromide, which in the same flask were completely dissolved by…
Preparation of Ammonium Chromate A saturated solution of ammonium chromate is treated with an excess of concentrated ammonium hydroxide solution until the strong smell of ammonia appears and the color of the solution changes from orange to yellow. Then the reaction mixture is cooled in ice water, the obtained yellow crystals of ammonium chromate are filtered, washed with cold concentrated ammonium hydroxide solution and dried at room temperature. 100 grams of chromium trioxide are dissolved in 70 ml of water. The mixture is stirred until solution is complete and then the flask is cooled with ice water. 160 ml of the…
Preparation of methyl formate Methyl formate is prepared by the action of methyl alcohol saturated with hydrochloric acid on calcium formate. To the round-bottom flask equipped with dropping funnel and a reflux condenser, the latter being connected with a well-cooled descending condenser 100 g of calcium formate are placed. 130 ml methyl alcohol saturated with hydrogen chloride (methanol could absorb up to 40 % of hydrogen chloride) are placed in the dropping-funnel and added to the calcium formate. When all the methanol has been added, the mixture is allowed to stand for a short time and then methael formate is…
Preparation of 1 4 dimethoxybenzene 1 4 dimethoxybenzene: The 1 mole of hydroquinone (benzene-1,4-diol, quinol) is treated rapidly with stirring, in a three-necked flask provided with a reflux condenser, stirrer, internal thermometer, and dropping funnel, with 2.5 mole of 10% sodium hydroxide. With vigorous stirring, 2 mole of dimethyl sulfate is added in such a way that the temperature remains below 40° C (water cooling). To complete the reaction and to destroy unchanged dimethyl sulfate, the mixture is then heated for 30 min on a boiling water bath. After cooling the solid reaction product is isolated by filtration, washed with…
Preparation of Phenyl Acetate Phenyl Acetate: 15 g of phenol are dissolved in 105 ml (1.6 moles) of 10% aqueous sodium hydroxide solution, and the solution is cooled by adding about 150 g of crushed ice. Then 22 ml (or 24 g) of acetic anhydride is added, the flask is stoppered and is shaken vigorously for about 5 minutes. When the emulsion of phenyl acetate is obtained the reaction is complete. The mixture is poured into a separating-funnel, owing to the density of the acetate being only slightly greater than that of water, a sharp separation is usually not rapidly obtained.…