Tartar, Cream emetic

Tartaric acid is noteworthy for a) the excellent way in which the majority of its salts Crystallise, and h) the frequent occurrence of salts having mixed cations. Examples of the latter are sodium potassium tartrate (or Rochelle salt), C4H40 NaK, used for the preparation of Fehling s solution (p. 525), sodium ammonium tartrate, C4H OaNaNH4, used by Pasteur for his early optical resolution experiments, and potassium antimonyl tartrate (or Tartar Emetic), C4H404K(Sb0). The latter is prepared by boiling a solution of potassium hydrogen tartrate (or cream of tartar ) with antimony trioxide,... 

S. SeadUy dissolred by a hot solution of hydric potassio tartrate (cream of tartar), forming potassic antimonylic tartrate (tartar emetic). —... 

With each of these four groups the procedure is as described later. In the first place, however, the colouring matter is investigated with reference to its tintorial properties by means of dyeing tests on non-mordanted cotton or wool, on wool mordanted with aluminium sulphate and cream of tartar, on wool mordanted with chromium fluoride and cream of tartar, on cotton mordanted with tannin and then with tartar emetic, on cotton mordanted with aluminium acetate and on cotton mordanted with chromium acetate. 

The most important commercial salts are tartar emetic , K(SbO).C4H406. 0 5H2O Rochelle salt , KNa.C4H406.4H20 and cream of tartar ,... 

Like arsenic salts, the history of antimony compounds as therapeutic agents dates back to medieval age when Paracelus (1493-1541) recommended metallic antimony and its salts as a cure for many diseases. Although the above panacea made Paracelsus the father of iatrochemistry, the therapy was later rejected by patients due to toxic effects [1,9]. The interest in antimony compounds revived during 1918-1920 when the medicinal value of tartar emetic (10), a mordant prepared in 1847 by boiling antimony trioxide and cream of tartar in water [14], was established by Christopherson [15] and Rogers [16]. 

H2O). pA i 2.98 p 2 4.34 (25°). Cream of tartar (the K,H salt) is used in baking powder Rochelle salt (the K,Na salt) is used in electroplating and medicinally as a mild saline cathartic preparation tartar emetic (the KSb salt) is used in low dose as an expectorant in cough syrups and in large doses as an emetic. 

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