184.1061 Lactic acid. 182.3766 Sodium metabisulfite. 182.3225 Calcium sorbate. 182.3637 Potassium metabisulfite. 173.300 Chlorine dioxide.
Most agents are weak acids.
Most work when in the un-ionized form. Most are not effective above their pKa's. Most affect flavor. Most are affected by processing, order of addition. Broad spectrum against yeast and molds.