Question: can pickling salt be used as table salt

Answer: Yes, Pickling salt can be used for things other than pickling. It can be used in place of table salt, although it can cake. A solution to this would be to add a few grains of rice to the salt, or to bake it (draws the moisture out), and then break it apart. Pickling salt sticks well to food, so it can be used in place of popcorn salt, which also has fine grains.