The smallest size of salt is powdered salt, which is used in various industries such as acid production, chicken and poultry feed, etc.
This size of salt is known as powdered salt or soft salt, which is between 0.01 and 0.8 mm. Due to its fine granularity, powdered salt absorbs moisture from the air faster than coarser granularities and clumps sooner. That is why it is difficult to store this size of salt