... .free sample 3.good quality 4.best price food additive Potash Alum KAL(SO4)2.12H2O1.Specifications 2012 Potash ... fermentation, vermicelli processing, salted aquatic products, food preservative and additive.Chemical Industry: Water treatment, sizing of paper, Painting and dyeing ... even affect the development of nerve cells. Therefore, some nutrition experts, to try to eat foods containing alum. Alum is ...