| abstract |
The liquid algicidal composition contains, as component A: 2-methylthio-4-cyclopropylamino-6-tertiary-butylamino- 1,3,5-triazine, as component B: at least one biocidal quaternary ammonium or phosphonium compound, as component C: at least one solvent which is miscible with water, the composition containing 10 to 80% by weight of components (A + B), and the ratio by weight of A:B = 1:(2 to 100). |