Cationic surfactants disinfection

Antimicrobial preservative antiseptic cationic surfactant disinfectant. 

Antimicrobial preservative antiseptic cationic surfactant disinfectant solubilizing agent wetting agent. 

Cationic surfactants show a high affinity for negatively charged surfaces making them suitable for industrial applications and as components for consumer products where they are used as disinfectants, foam depressants, and first and foremost as textile softeners [23], Due to the possible formation of ion-pair associates they are usually not formulated together with anionic surfactants. 

The widespread use of cationic surfactants as detergents and disinfectants in many different home- and industrial-cleaning products suggests its likely presence in the aquatic environment, such as in surface water from WWTP. Environmental detections of cationic surfactants have been reported at the submicrogram-per-htre level in water and sediment matrices. The presence of surfactants in surface water also suggests potential toxicity for organisms, such as fish... 

Disinfectants come from various chemical classes, including oxidants, halogens or halogen-releasing agents, alcohols, aldehydes, organic acids, phenols, cationic surfactants (detergents) and formerly also heavy metals. The basic mechanisms of action involve de-naturation of proteins, inhibition of enzymes, or a dehydration. Effects are dependent on concentration and contact time. 

Hygienic and surgical hand disinfection The former is required after a suspected contamination, the latter before surgical procedures. Alcohols, mixtures of alcohols and phenols, cationic surfactants, or acids are available for this purpose. Admixture of other agents prolongs duration of action and reduces flammability. 

Surface (floor) disinfection employs aldehydes combined with cationic surfactants and oxidants or, more rarely, acidic or alkalizing agents. 

Skin disinfection." Reduction of germ counts prior to punctures or surgical procedures is desirable if the risk of wound infection is to be minimized. Useful agents include alcohols (1- and 2-propanol ethanol 60-90% iodine-re-leasing agents like polyvinylpyrrolidone [povidone, PVPj-iodine as a depot form of the active principle iodine, instead of iodine tincture), cationic surfactants, Liillmann, Color Atlas of Pharmacology <... 

Surfactants are used primarily as inert ingredients of pesticides, especially in agricultural applications. These surfactants usually have TSCA as well as inert pesticidal regulatory status in the US. Some surfactants are active components in pesticides. For example, the cationic surfactants benzalkonium chloride and didecyl ammonium chloride and their various derivatives are registered as active ingredients in disinfectant products with many household and industrial applications. 

Cationic surfactants are bactericidal agents and are used as antiseptics and disinfectants in topical and other external preparations and are never used in parenterals. Lecithins and other natural phospholipids, as one of the main constituents... 

CAE. [Ajinomoto] PCA ethyl coooyl arginate cationic surfactant foamer, andstat peservative, antiseptic, germicide, disinfectant in cosmetics, deto -goits, dentifrices, medical supplies. 

Cationic surfactants are used as corrosion inhibitors, flotation aids, biocides, fungicides, and disinfectants. Their use is, however, limited, due to a relatively high cost. Pyridinium salts are employed in the textile industry as dye fixing agents during fabric dyeing, as well as in final fabric finishing. For example, Xelan... 

Cationic surfactants contain quaternary ammonium ions as their hydrophilic parts (Table 30.3). This class of surfactants has gained importance because of its bacteriostatic properties. Therefore, cationic surfactants are applied as disinfectants and antiseptic components in personal care products and medicine. Because of their high adsorptivity to a wide variety of surfaces, they are used as antistatic agents, textile softeners, corrosion inhibitors, and flotation agents. 

Properties Amphoteric/cationic Uses Disinfectants deodorants surfactant in cosmetics, pharmaceuticals, skin disinfectants Trade Name Synonyms Rewoteric QAM 50 [Goldschmidt http //www. goldschmidt com, Goldschmidt AG... 

CAS 32426-11-2 EINECS/ELINCS 251-035-5 Synonyms 1-Decanaminium, N,N-dimethyl-N-octyl, chloride Decyl dimethyl octyl ammonium chloride Octyl decyl dimethyl ammonium chloride Classification Quaternary ammonium salt Empirical C20H44N Cl Formula [C8Hi7N(CH3)2CioH2i] Cr Properties M.w. 334.10 cationic Uses Disinfectant, sanitizer, fungicide for hard surfaces antimicrobial, antistat, surfactant in cosmetics, pharmaceuticals in sanitizing sol ns. for food contact... 

Uses Intermediate for cationic surfactants softener/antistat in hair conditioners germicide in foods, water treatment (duckweed killer), petroleum, textiles dispersant in paints antistat/disinfectant in plastics, pulp/paper dye leveling agent antimicrobial, preservative in foods, cosmetics antimicrobial in cane-sugar mills, pharmaceutical topicals organophilic surf, treatment agent in bentonite in food-pkg. adhesives... 

Cationic surfactants fall into several categories depending on the nature of their cationic polar heads. Some of them have functional groups susceptible to protonation e.g. amines) and thus display cationic properties particularly in acidic media, while others, such as quaternary ammonium salts, exhibit a permanent positive charge. In household products, cationic surfactants are primarily applied in fabric softeners and hair preparations. Other applications of cationic surfactants include disinfectants and biocides, emulsifiers, wetting agents and processing additives. By volume, the most important cationic surfactants in household products are the alkyl ester ammonium salts that... 

Quite logically, new columns are developed to meet a real analytical need. Proliferation in the use of surfactants is a case in point Surfactants have both hydrophilic and hydrophobic centers and are widely used in many industries because of their abiUty to reduce surface tension. Anionic surfactants, classified as alkanesul-fonates, alkyl sulfates and alkylbenzenesulfonates, are commonly used in detergents, cleansing agents, cosmetics and hygienic products. Cationic surfactants are quaternary ammonium compounds, which are used in cosmetics, disinfectants, foam depressants, and textile softeners. Nonionic surfactants are also present in a... 

Cationic surfactants, used for disinfection, can also serve as preservatives when formulated with nonionics. Bleaches are not useful for preservation, mainly because they are difficult to stabilize for an extended period in surfactant-based formulas. 

Cationic surfactants are noted for their affinity for natural surfaces and their strong biocidal activity. Thus, they find use in applications such as fabric softening, mineral flotation, corrosion inhibition, cleaning and disinfecting. A few examples illustrating applications and benefits afforded by natural fat and oil-based cationic surfactants are given here. 

The most recent advances in MS, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOFMS) were applied in positive ion mode to the analysis of three oral rinse and one commercial disinfectant formulation. In the latter, a complex mixture containing three dialkyldimethylammonium and alkylbenzyl-dimethylammonium (Ciq, C14, Cjs) salts was detected and in three oral rinse, cetylpyri-dinium chloride was the cationic surfactant present. Besides, the dissociation was verified as the mode of ionization of quaternary ammonium under MALDI conditions (Morrow et al, 2001). 

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