... give off a lot of heat, and the water solution has a soapy feeling.The use of caustic soda is very extensive. ... old rubber regeneration, and in the manufacturing of sodium metal, in the electrolysis of water, na din the production of inorganic salt, and ... can save, but fire extinguishers should pay attention to the water into the corrosive after caustic soda. QUALITY CONTROL: Rigid quality control ...