Final answer:
Acidic cleaning agents containing strong mineral acids and chelants can be used to remove salt residue and contaminants from internal avionics and electrical equipment.
Step-by-step explanation:
To remove salt residue and contaminants from internal avionics and electrical equipment, acidic cleaning agents can be used.
These cleaning agents contain strong mineral acids and chelants, which are effective in removing inorganic deposits like scaling.
They also often include surfactants and corrosion inhibitors to protect the equipment.