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Tartaric acid sodium bicarbonate neutralization

Three molecules of sodium bicarbonate are required to neutralize one molecule of citric acid, and two molecules of sodium bicarbonate to neutralize one molecule of tartaric acid. A specification for sodium bicarbonate is contained in the Food Chemicals Codex (FCC). [Pg.667]

The defatted material is now made into a paste with 260 cc. of 5% aqueous sodium carbonate solution and then extracted with ether by shaking for 1/2 hour on the shaking machine, first with 2.6 liters of ether and then twice more with 1.3 liters of ether. The alkaloids are removed from the combined ether extracts by shaking out with a 1% aqueous solution of tartaric acid, first with 1.3 liters and then with four further portions of 0.65 liter of the solution. In order to remove neutral and acid impurities, the combined aqueous extracts are shaken out three times with 300 cc. of ether and each ether extract washed twice with 100 cc. of a 1% aqueous solution of tartaric acid. The tartaric acid washings are combined with the main tartaric acid extract which is then made alkaline by addition of sodium bicarbonate. The alkaloidal bases are thus liberated and the fraction insoluble in water is extracted by shaking out with 500 cc. of ether and then with three further portions of 250 cc. of ether. The combined ether extracts are dried over sodium sulphate and then evaporated to dryness under reduced pressure. The residue of crude alkaloids thus obtained weighs 0.31 gram. [Pg.91]

The first effervescent preparations were described over two centuries ago in the official compendia they were in powder form for use as cathartic salts. Later, in 1815, a patent described a combination of neutral salt or powder which possesses all the properties of the medicinal spring of Seidlitz in Germany, under the name of Seidlitz Powders, which contains sodium potassium tartarate, sodium bicarbonate, and tartaric acid, in the proportions 3 1 1, respectively (1). Effervescent granules and tablets have become more and more popular as the dosage form because they are readily soluble and easy to consume just by drinking the glass of water where they are dissolved. [Pg.365]


See other pages where Tartaric acid sodium bicarbonate neutralization is mentioned: [Pg.936]    [Pg.14]    [Pg.925]    [Pg.461]    [Pg.293]    [Pg.890]   
See also in sourсe #XX -- [ Pg.667 ]




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Acid neutralization

Acid neutralizers

Bicarbonate

Bicarbonate neutralization

Sodium acids

Tartar

Tartaric acids

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