White or Milky needle-like crystals. Melting Point 80-81 °c (81-83 °C) , boiling point 285 °C, 170 °c (2.0 KPA) . 1 G SOLUBLE IN 100 ML water, 16 ml hot water at 80 °C, 20 ML glycerol. Soluble in alcohols, chloroform, ethers, carbon disulfide, glacial acetic acid and Pyridine, soluble in oils and Alkali hydroxide solutions, the solution is acid to litmus. Slow oxidation in exposed moist air. Slightly sweet.