... 48-5 purity:98% used in water treatment system, swimming pools 1,3-Dibromo-5,5-dimethylhydantoin ... powder, slightly soluble in water. At 20 1L of water can dissolve 2.2g1 of 1,3-Dibromo-5,5 ... -dimethylhylhydantoin, pH-value of 0.1% water solution is 2. ... , anitary system and aquaculture etc. [Packing]: in woven bag or compound paper bag lined with plastic ...