What is the main component of the salt spray in the salt spray test chamber?
Salt spray is a diffusion system consisting of tiny droplets of salt in the atmosphere. The cause is mainly due to the intense disturbance of seawater in the ocean, the breaking of wind and waves, the formation of a lot of foams and bubbles in the waves, and the formation of tiny water droplets when the bubbles burst. Most of the sea water droplets fall due to gravity, and some are in the same vortex diffusion. The equilibrium state is distributed on the sea surface. They rise into the air with the airflow, and evolve into a dispersion system through the processes of cracking, evaporation, and mixing to form an atmospheric salt core. These salt cores can reach an altitude of more than 2,000 meters with the ascending airflow.
The main component in salt spray is NaCl, and the solution of NaCl is in the form of Na+ and Cl-. The corrosion of salt spray can be known by salt spray corrosion test. The corrosion effect of salt spray is affected by temperature and salt concentration. When the temperature is 35 degrees Celsius and the salt concentration is 3%, it has the greatest effect on the corrosion (chemical reaction) of the object. The high concentration of (NaCl) in salt spray is rapidly decomposed into Na+ ions and active Cl- ions to chemically react with metal materials with very active molecular formula to form strongly acidic metal salts. The metal ions are in contact with oxygen and then reduced to form a stable metal. Metal oxide.
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