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Before proceeding to the table, the following items should be noted.
* Comparisons made at approved 'no-rinse use' levels. Adapted from B.R. Cords and G.R. Dychdala, 1993.
The text of the table follows.
Corrosive: Chlorine Corrosive, Iodophors Slightly corrosive, Quarternaryammonium compounds Noncorrosive, Acid anionic Slightly corrosive, Fatty Acid Slightly corrosive, Peroxyacetic acid Slightly corrosive
Irritating to skin: Chlorine Irritating, Iodophors Not irritating, Quarternaryammonium compounds Not irritating, Acid anionic Slightly irritating, Fatty Acid Slightly irritating, Peroxyacetic acid Not irritating
Effective at neutral pH: Chlorine Yes, Iodophors Depends on type, Quarternaryammonium compounds In most cases, Acid anionic No, Fatty Acid No, Peroxyacetic acid Yes
Effective at acid pH: Chlorine Yes, but unstable, Iodophors Yes, Quarternaryammonium compounds In some cases, Acid anionic Yes, below 3.0-3.5, Fatty Acid Yes, below 3.5-4.0, Peroxyacetic acid Yes
Effective at alkaline pH: Chlorine Yes, but less than at neutral pH, Iodophors No, Quarternaryammonium compounds In most cases, Acid anionic No, Fatty Acid No, Peroxyacetic acid Less effective
Affected by organic material: Chlorine Yes, Iodophors Moderately, Quarternaryammonium compounds Moderately, Acid anionic Moderately, Fatty Acid Partically, Peroxyacetic acid Partially
Affected by water hardness: Chlorine No, Iodophors Slightly, Quarternaryammonium compounds Yes, Acid anionic Slightly, Fatty Acid Slightly, Peroxyacetic acid Slightly
Residual antimicrobial activity: Chlorine None, Iodophors Moderate, Quarternaryammonium compounds Yes, Acid anionic Yes, Fatty Acid Yes, Peroxyacetic acid None
Cost: Chlorine Low, Iodophors High, Quarternaryammonium compounds Moderate, Acid anionic Moderate, Fatty Acid Moderate, Peroxyacetic acid Moderate
Incompatibilities: Chlorine Acid solutions, phenols, amines, Iodophors Highly alkaline detergents, Quarternaryammonium compounds Anionic wetting agents, soaps, and acids, Acid anionic Cationic surfactants and alkaline detergents, Fatty Acid Cationic surfactants and alkaline detergents, Peroxyacetic acid Reducing agents, metal ions, strong alkalies
Stability of use solution: Chlorine Dissipates rapidly, Iodophors Dissipates slowly, Quarternaryammonium compounds Stable, Acid anionic Stable, Fatty Acid Stable, Peroxyacetic acid Dissipates slowly
Maximum level permitted by FDA without rinse: Chlorine 200ppm, Iodophors 25ppm, Quarternaryammonium compounds 200ppm, Acid anionic Varied, Fatty Acid Varied, Peroxyacetic acid 100-200ppm
Water temperature sensitivity: Chlorine None, Iodophors High, Quarternaryammonium compounds Moderate, Acid anionic Moderate, Fatty Acid Moderate, Peroxyacetic acid None
Foam level: Chlorine None, Iodophors Low, Quarternaryammonium compounds Moderate, Acid anionic Low/Moderate, Fatty Acid Low, Peroxyacetic acid None
Phosphate: Chlorine None, Iodophors High, Quarternaryammonium compounds None, Acid anionic High, Fatty Acid Moderate, Peroxyacetic acid None
Soil load tolerance: Chlorine None, Iodophors Low, Quarternaryammonium compounds High, Acid anionic Low, Fatty Acid Low, Peroxyacetic acid Low
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