DESCRIPTION

Quinine Sulfate occurs as odorless, fine, white, needle-like crystals, usually lusterless, with a persistent, very bitter taste. It makes a light and readily compressible mass. It darkens on exposure to light. Its saturated solution is neutral or alkaline to litmus. One g dissolves in about 500 mL of water and in about 120 mL of alcohol at 25°, in about 35 mL of water at 100°, and in about 10 mL of alcohol at 80°. It is slightly soluble in chloroform and in ether, but is freely soluble in a 2:1 (v/v) mixture of chloroform:absolute alcohol.