C4H6O6=Tartaric acid

COOh h—1—Oh HO—f—H COOH ( + )-(2A3 )-2,3-dihydroxybutane-dioic acid (tartaric acid) c4h6o6 1.50 P2i 50... 

This base gives easily water-soluble salts with inorg2mic and organic acids, such as hydrochloric, phosphoric, acetic, tartaric, oxalic acids. The neutral tartrate of the base can be prepared for example by treating a methanol solution of the base with the equivalent quantity of tartaric acid, whereby the neutral salt crystallizes out in white needles formed to bushes. This salt is easily soluble in water. When dried in high vacuo, its composition is (C20H25O2N3)2.C4H6O6. 

Tartaric acid C4H6O6 HOOC-CHOH-CHOH-COOH 2.98 4.34 150.09... 

Ammonium tartrate (6m). Dissolve 50 g tartaric acid, C4H6O6, in 50 ml water and add 50 ml concentrated ammonia solution. The solution contains an excess of ammonia. 

Tartaric acid (m). Dissolve 15 g tartaric acid, C4H6O6, in water and dilute to 100 ml. The solution does not keep for very long (max. 1-2 months). 

Gay-Lussac reported this observation to Berzelius, then the most noted chemist in the world, but Berzelius was reluctant to believe the discovery. By 1830, however, Berzelius himself had discovered that two organic compounds, racemic acid and tartaric acid, although possessing different properties, seemed to have the same empirical formula (now known to be C4H6O6). 

Dibasic tartaric acid (C4H6O6) was a particularly important case, not just because its salts exhibited beautifully formed crystals, but also because it had become a crucial early instance of isomerism, which Berzelius had first discussed, defined, and named in 1830. Tartaric acid was derived from the pink tartar deposited by fermenting red wine, and the substance had been characterized chemically for almost seventy years, but a distinct substance with the same formula, also derived from wine... 

CAS 147-71-7 EINECS/ELINCS 205-695-6 Synonyms Butanedioic acid, 2,3-dihydroxy-, [S-(R,R)]- (S-(R,R))-2,3-Dihydroxybutanedioic acid D-Dihydroxysuccinic acid (-)-(2S,3S)-Tartaric acid (S,S)-Tartaric acid (S,S)-Tartrate Unnatural tartaric acid Empincai C4H6O6... 

Dimethyl dicarbonate N-Hydroxysuccinic acid C4H6O6 Pb Lead maleate, tribasic C4H6O6 D-Tartaric acid DL-Tartaric acid L-Tartaric acid C4H7AIN4O5 Aldioxa C4H7AIO5... 

Ammonium tartrate solution 12.4 g tartaric acid, C4H6O6, and 18 mL concentrated ammonium hydroxide in 1 L water. 

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