The acid is thus obtained in colourless rhombic prisms of the composition C 6 H 8 0 7 +H 2 0.
Prisms deflect rays of light towards their bases.
In this way the principal features of the phenomenon are accounted for, and Schuster has shown further how to extend the results to spectra having their origin in prisms instead of gratings.
It forms large rhombic prisms, has a somewhat saline taste and is easily soluble in water.
It crystallizes from alcohol in prisms, which are sparingly soluble in water.
