... of soil and crops. (2 )can also be used in textile, leather, medicine and so on. (3 )consumption ... water, except the addition of arsenic and heavy metals in solution purification agents, filtration, evaporation, cooling crystallization, centrifugal separation, ... additives, as dough conditioner, yeast nutrients. (4 )used in biochemistry, common salt, salting, salting initially be upstream from ...