As, for instance, strychnine racemate, a compound of racemic acid with the optically active strychnine.
A solution of racemic acid precipitates a neutral salt of calcium, which is not the case with tartaric acid.
The lower isothermal, on the other hand, would be obtained at a temperature at which the racemic compound could be formed.
racemic acid is rather less soluble than tartaric, and separates first from a solution containing the two acids.
Examination of liquors from which racemic acid has been deposited has always shown them to contain much inactive tartaric acid.
In the one case, therefore, the racemic compound has a higher, in the other a lower melting point than the active forms.
racemic ra·ce·mic (rā-sē'mĭk, -sěm'ĭk, rə-)
Of or relating to a chemical compound that contains equal quantities of dextrorotatory and levorotatory forms and therefore does not rotate the plane of incident polarized light.