... sour and sweet. Contact with the skin has satiny feeling.3, 1g the goods 18mL cold water, soluble in water, 4mL ... acetone.4 and melting point about 171 °C.5, boric acid in the water solubility with temperature and increase, and can ... change with steam volatile, In the solubility inorganic acid than in water solubility of small. Heated to 70 to ...