Antimicrobial concentration-independent activity

Dowcill 200 (Dow Chemical Co., Midland, MI) is a water-soluble, broad-spectrum antimicrobial and antifungal compound. It is not inactivated by non-ionic, cationic, or anionic formulations, and it is particularly effective against Pseudomonas. Its activity is independent of pH effective concentration is 0.02-0.30%. 

As can be seen from the minimum inhibition concentrations listed in Table 7. the mixture exhibits a moderate antimicrobial activity in consequence it is mainly used in combination with other microbicides. Its activity is largely independent of pH. 

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