| abstract |
The active chlorine-containing agents contain 5-15% by weight dichloroisocyanurate, preferably 5-10% by weight anhydrous dichloroisocyanurate, and at least 10, preferably more than 20% by weight sodium hydroxide, the latter being in an almost spherical prill form and these prills having a diameter of approximately 2 mm, but not less than 1 mm. The agents can additionally contain builders (5-60% by weight), alkali metal silicate (5-60% by weight), alkali metal carbonates (5-50% by weight), each in anhydrous form, and nonionic alkali-resistant surfactants (0, 5-2% by weight). |