Sodium acetate trihydrate

Chlorodiphenyl. Diazotise 32 g. of o-chloroaniline (Section IV,34) in the presence of 40 ml. of concentrated hydrochloric acid and 22 -5 ml. of water in the usual manner (compare Section IV,61) with concentrated sodium nitrite solution. Transfer the cold, filtered diazonium solution to a 1 5 htre bolt-head flask surrounded by ice water, introduce 500 ml. of cold benzene, stir vigorously, and add a solution of 80 g. of sodium acetate trihydrate in 200 ml. of water dropwise, maintaining the temperature at 5-10°. Continue the stirring for 48 hours after the first 3 hours, allow the reaction to proceed at room temperature. Separate the benzene layer, wash it with water, and remove the benzene by distillation at atmospheric pressure distil the residue under reduced pressure and collect the 2-chlorodiphenyl at 150-155°/10 mm. The yield is 18 g. Recrystalliae from aqueous ethanol m.p. 34°. 

The mixture is then cooled to 25-30°, and to it is added through the dropping funnel a solution of 750 g. (5.5 moles) of sodium acetate trihydrate (Note 3) in about 1 1. of water, cautiously at first, then as rapidly as possible. The reaction mixture is again refluxed for 15 minutes, vigorous stirring being maintained all the while (Note 4). 

Chloro-4-nitrobenzofurazan Sodium acetate trihydrate Sodium carbonate... 

Methyl 3-Carbethoxyoxy-7-keto-12a-hydroxycholanate. A solution of 4 g (8.6 mmoles) of crude methyl 3-carbethoxyoxycholate in 50 ml of acetic acid containing 10 g of sodium acetate trihydrate is treated gradually with a solution of 3 g (0.015 mole) of potassium chromate in 8 ml of water with shaking. After 10 hr at 25° the solution is diluted with water and the product collected by filtration to afford 3.9 g (97%) of methyl 3-carbethoxyoxy-7-keto-12a-hy-droxycholanate, mp 150-158°. Crystallization from methanol gives hard, compact needles or rods mp 157-158° 41°. The same substance is... 

A. 2,i,l,()-Tetrabromo-2,5-cyclohexadien-l-one. A mixture of 66.2 g. (0.2 mole) of 2,4,6-tribromophenol (Note 1), 27.2 g. (0.2 mole) of sodium acetate trihydrate, and 400 ml. of glacial acetic acid is placed in a 1-1. Erlenmeyer flask and warmed until a clear solution is obtained. The temperature of the solution is approximately 70°. The solution is magnetically stirred and cooled to room temperature to produce a finely divided suspension of the phenol. A solution of 32 g. (0.2 mole) of bromine in 200 ml. of glacial acetic acid is added dropwise over 1 hour (Note 2). The resulting mixture is kept at room temperature for 30 minutes and is then poured onto 2 kg. of crushed ice. The yellow solid which separates is removed by suction filtration after the ice has melted, and the damp crystals are dissolved in the minimum quantity of warm chloroform (Note 3). The upper aqueous layer is removed by means of a pipet fitted with a suction bulb. The dienone crystallizes from the... 

To a stainless steel reactor equipped with a heating mantle, a charging port, a condenser for removing ethylene glycol, an inert gas inlet, and a sampling valve were added 400 g of bis(2-hydroxyethyl)terephthalate, 136 g of ethylene glycol, and 0.035 g (or 0.225 g) of sodium acetate trihydrate. The temperature was raised to between 190 and 200°C in 1 h and then 454 g of waste polyester... 

Kimura, H. and Kai, J. Solar Energy 35 (1985) 527-534. Phase change stability of sodium acetate trihydrate and its mixtures. 

A mixture of 28.6 g. (0.25 mole) of 2-heptanone (Note 1), 51.0 g. (0.50 mole) of acetic anhydride (Note 2), and 1.9 g. (0.01 mole) of p-toluenesulfonic acid monohydrate (Note 3) contained in a stoppered 500-ml. round-bottomed flask equipped with a magnetic stirrer is stirred at room temperature for 30 minutes. Then 55 g. (0.43 mole) of the solid 1 1 boron trifluoride-acetic acid complex (Note 4) is added some heat is evolved during this addition. The resulting amber-colored solution is stirred in the stoppered flask at room temperature for 16-20 hours (Note 5), and then a solution of 136 g. (1.00 mole) of sodium acetate trihydrate (Note 6) in 250 ml. of water is added. After the flask has been fitted with a reflux condenser, the reaction mixture is heated at reflux for 3 hours and then cooled,... 

Sodium acetate trihydrate was obtained from Eastman Organic Chemicals. 

Dissolve 4.88 g barbital-sodium (Veronal, sodium diethylbar-biturate) and 3.23 g sodium acetate trihydrate in about 800 ml ddH20. Adjust pH to 8.6 with 0.1 N HCl (consumption about 30 ml), then fill up to 1000 ml. 

To a solution of 16.5 gm (0.1 mole) of ethyl 2-chloroacetylacetate in approximately 60 ml of ethanol, well-cooled in an ice-water bath, is added, with shaking, as quickly as possible, a mixture of 10.8 gm (0.1 mole) of phenylhydrazine dissolved in 100 ml of ethanol and 13.6 gm (0.1 mole) of crystalline sodium acetate trihydrate in 30 ml of water. The reaction mixture rapidly turns red and subsequently turns cloudy as the product begins to separate. If pow-... 

Add and mix item 6 and cool to 20° to 25°C. In a separate vessel, mix acetic acid, sodium chloride and sodium acetate trihydrate in about... 

Sodium acetate trihydrate stock solution (0.1 M) dissolve 13.6 g in 1000 ml water. 

Vial per 1 mL 8.0mg sodium chloride 0.05 mg polysorbate 80 10.0 mg benzyl alcohol 2.62 mg sodium acetate trihydrate 0.05 mg acetic acid... 

Veronal acetate buffer 0.97 g of sodium acetate (trihydrate), 1.47 g of sodium barbitone, 250 mL of fresh distilled water (C02 free), and 2 5 mL of 0 M hydrochloric acid, pH 9.2... 

JL Lee R. Summerlin, Christie. L. WBorgford, and Julie. B. Ealy, "Supersaturation," Chemical Demonstrations, A Sourcebook for Teachers, Vol. 2 (American Chemical Society, Washington, DC, 1988), pp. 121-122. Excess solute suddenly precipitates from a supersaturated solution of sodium acetate trihydrate in this demonstration. 

To prepare palladium on charcoal (5% Pd), heat a solution of 1.7 g of palladium chloride (1) in 1.7 ml of concentrated hydrochloric acid and 20 ml of water on a water bath for 2 hours or until solution is complete, and add this to a solution of 30 g of sodium acetate trihydrate in 200 ml of water contained in a 500-ml hydrogenation flask. Add 20 g of acid-washed activated charcoal (2) and hydrogenate in an atmospheric hydrogenation apparatus (Fig. 2.63(a)) until absorption ceases. Collect the catalyst on a Buchner funnel and wash it with five 100 ml portions of water and suck as dry as possbile. Dry the catalyst at room temperature (3) over potassium hydroxide pellets or anhydrous calcium chloride in a vacuum desiccator. Powder the catalyst (about 20 g) and store in a tightly stoppered bottle. 

Acetate buffer Dissolve 82 g sodium acetate trihydrate in 100 mL water. Acidify to pH 4.5 with glacial acetic acid. 

To a suspension of 35.2 grams (0.2 mol) of L-cysteine hydrochloride monohydrate stirred in a reaction vessel containing 87 ml of 91% aqueous tetrahydrofuran under a nitrogen atmosphere there is added 54.4 grams (0.4 mol) of sodium acetate trihydrate. The mixture is stirred for 20 minutes at room temperature to insure neutralization of the hydrochloride salt resulting in the formation of a suspension of equimolar amounts of cysteine and sodium acetate. 

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