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: 1 No.ġ.2 Measuring cylinders (100 ml capacity). Translations in context of 'dilute ammonia solution' in English-Dutch from Reverso Context: Wash the residue on the crucible successively with 50 ml of the dilute sulphuric acid reagent, 50 ml water and 50 ml of the dilute ammonia solution. Wipe the buret tip with tissue before each addition.1.1 Volumetric flask (500 ml capacity). Prepare ammoniacal silver nitrate solution by placing 5 ml silver nitrate solution in a thoroughly clean test-tube and add 2-3 drops of dilute sodium hydroxide solution add dilute ammonia solution dropwise until the precipitated silver oxide is almost redissolved (this procedure reduces the danger of the formation of the explosive silver azide, AgN3, to a minimum). Dispense the reagent from a small-bore buret, arranged to exclude moisture, capable of delivering 1 mL in 30 seconds or less, and having no lubricant, other than reagent, on its stopcock. To the mixture add 23.5% of its weight of a solution of 100 volumes of sulfuric acid in 110 volumes of water, mix, transfer to dry glass-stoppered bottles, and store in the dark, protected from atmospheric moisture. Shake the mixture vigorously until mixed, allow to stand in the dark for 16 to 24 hours, and again weigh the flask and its contents. Weigh the flask and its contents, add to the phenol 1.13 times its weight of the ironsulfuric acid solution prepared as directed, insert the stopper in the flask, and allow to stand, without cooling but with occasional mixing, until the phenol is liquefied. Solidify the phenol in an ice bath, breaking the top crust with a glass rod to ensure complete crystallization. Children can also be exposed to dilute ammonia. Ammonia Stock Solution :1000 µg NH 3 /ml. Ammonia is essential for mammals and is necessary for making DNA, RNA.
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Purify phenol by distillation, discarding the first 10% and the last 5%, collecting the distillate, with exclusion of moisture, in a dry, tared glass-stoppered flask of about twice the volume of the phenol. Phenol Solution : Dilute 20ml of 45 phenol solution with 1ml of 2 Sodium Nitropruside Solution and dilute to 100ml with distilled water. To 3 volumes of this solution contained in a volumetric flask add sulfuric acid, with cooling, to make 100 volumes. Mix, heat until effervescence ceases, and dilute with water to 50 mL. For the preparation of concentrated solutions of a multiple of the amount given in a first approximation may be used. Dissolve 1.054 g of ferrous ammonium sulfate in 20 mL of water, and add 1 mL of sulfuric acid and 1 mL of 30 percent hydrogen peroxide. Making dilute solutions To prepare the solution, the specified output quantity is dissolved with stirring in a liter of water.