Organic peracids, bleaches

Two sohd organic peracids have been utilized ia textile bleaching products. Diperoxydodecanedioic acid, (16), [66280-55-5] a hydrotropic peracid, and the magnesium salt [78948-87-5] of monoperoxyphthaUc acid, (17), [2311-91-3] a hydrophilic peracid, were contained in bleaching products for a short period of time (142). 

In traditional peroxide bleaching, hydrogen peroxide is activated by alkali. Acids, both inorganic and organic, can also be used to activate peroxide by the formation of a peracid. Peracids can be effective oxidative bleaching agents and, at least potentially, offer an alternative to the environmentally sensitive chlorine bleaches. Although known for quite... 

Peracids -acetic acid as by-product of [ACETIC ACID AND DERIVATIVES - ACETIC ACID] (Vol 1) -as disinfectant piSINFECTANTS AND ANTISEPTICS] (Vol 8) -10 hHLT [PEROXIDES AND PEROXIDE COMPOUNDS - ORGANIC PEROXIDES] (Vol 18) -for propylene oxide mfg [PROPYLENE OXIDE] (Vol 20) -as bleach [BLEACHING AGENTS - SURVEY] (Vol 4) -reactions of [IMINES, CYCLIC] (Vol 14)... 

Several oxidants (Fig. 1) are used as the oxygen source. Examples are bleach (NaOCl), hydrogen peroxide (H202), organic peroxides like dimethyldioxyrane (DMD) or ferf-butyl hydroperoxide (TBHP), peracids like m-chloroperbenzoic acid (mCPBA) or potassium monoperoxysulfate (KHSO5). 

In contrast to sensitive preformed peracids, bleach activators are safe to handle and, in granulated form, reasonably storage-stable in alkaline detergent powders or tablets. Bleach activators are organic compounds having at least one reactive acyl group R-CO (peracid precursor group), which... 

PHMB because it is not an oxidizer will not bleach pool vinyl surfaces, degrade fabric or cause colors to fade in swimwear (Unhoch and Vore, 1996). An oxidizer is needed to assist in controlhng the accumulation of organics resulting from bathers and the environment. The preferred oxidizers for use with PHMB are peroxides, peracids, and perborates. Ozone can also be used to control the accumulation of organics in pool and spa water. Chlorine products cannot be used because they react with the PHMB removing it from the water as a sticky yellow precipitate. 

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