Didecyldimethylammonium-chloride

Fig. 6 General structures of the most important surfactants and metabolites alkylphenol polyethoxylate (APE) alkylphenol (AP) alkyl ether (AE) alkylphenol ethoxy carboxylate (APEC) linear alkylbenzenesulfonates (LAS) alkyltrimethylammonium compounds (ATMAC) dialkyldimethylammonium compounds (DADMAC) alkyldimethylbenzylammonium compounds (ADMBAC) esterquat (EQ) diesterquats (DEQ). X is usually a chlorine or bromine atom. DDAC (didecyldimethylammonium chloride) and BDD12AC (benzyldimethyldode-cylammonium) are the two target analytes with a reported immunochemical technique developed for their analysis [153,154]...

BMP-IA bacterial magnetic particle-based immunoassay FIIA flow-injection immunoassay PFIA polarization fluoroimmunoassay. b BDD12AC benzyldimethyldodecylammonium chloride DDAC didecyldimethylammonium chloride. 

Other disinfectants include quartemary ammonium compounds (QACs) such as benzalkonium chloride (BACl) and didecyldimethylammonium chloride (DDMAC). Disinfectants have been shown to denitrifying bacteria at concentrations as low as 1-2 ng L (Kiimmerer, 2004b). QACs are specifically not used for disinfecting clothing, but their use is central in other purposes. Triclocarban and triclosan have an aromatic structure that is rich in chlorides, which contribute to their persistence in the environment. QACs are also quite persistent in the environment (Al-Ahmad et al., 2000). Other disinfectants include chloramines and 1,3-dichlorosucyanuric acid as well as PVP-iodide-based disinfectants. 

Farrell, A.P., Kennedy, C.J., Wood, A., Johnston, B.D. and Bennett, W.R. (1998) Acute toxicity of a didecyldimethylammonium chloride-based wood preservative, bardac 2280, to aquatic species, Environmental Toxicology and Chemistry 17 (8), 1552-1557. 

Currently, the most promising biocides for potential new wood preservatives are the alkylammonium compounds (AAC). These compounds have been subjected to extensive studies (5, 6) and the di-alkyldimethylammonium compounds are suggested to be the best (7). Didecyldimethylammonium chloride 5 appears to be particularly effective. 

Didecyldimethylammonium chloride is used to prevent stain and mildew on freshly cut lumber81 If a quaternary ammonium salt monomer could be impregnated into wood, then graft polymerized to it, the process might displace some of the chromium copper arsenate treatments. Some antibacterial polymers (e.g., 4.9) work by gradual hydrolysis to release the active group.82... 

T Furuta. Effect of aUcatine builders and surfactants on the bactericidal activity of didecyldimethylammonium chloride. J Antibact Antifung Agents 20(12) 617-622, 1992. 

Dialkyl ammonium quaternaries Dioctyldimethylammonium chloride Didecyldimethylammonium chloride Didecyldimethylammonium bromide Dialkyidimethylammonium chloride Dicocodimethylammonium chloride Benzyl quaternary ammonium compounds Cocobenzyldimethylammonium chloride Coco(fractionated)benzyldimethylammonium chloride... 

Table 14.6. Biocidal activity of coco(fractionated)benzyl-dimethylammonium chloride and didecyldimethylammonium chloride determined according to pr EN1276" for clean conditions (0.03% BSA)...

Used by themselves, or in combination with other modem biocides - such as systematic fungicides, bactericides or insecticides - the long-alkyl-chain quaternary ammonium compounds offer a useful tool in the development of new environmentally acceptable wood preservative formulations. The most commonly used quaternary ammonium compounds are coco(fractionated) benzyldimethylammonium chloride and didecyldimethylammonium chloride. 

H3C CH2CH2CH2CH2CH2CH2CH2CH2CH2CH3 Figure 9.2. Chemical structure of didecyldimethylammonium chloride, a type of QUAT. 

One of the most frequently used active agents, normally applied at an addition rate of 0,03-0,1% on hide weight is didecyldimethylammonium-chloride [II, 18.1.4.], a quaternary ammonium salt which effects rapidly, is of low toxicity and bio-degradable. 

Didecyldimethylammonium chloride and dodecyltrimethylammonium bromide determination in beer C15-C18 dialkyldimethylammonium, dialkylmethyl-2-hydroxyethylam-monium, and dialkylmethylpoly (oxyethylene)-ammonium salts determination in laundry detergent C14-C20 dialkylimidazolium quats separation by total alkyl chain length... 

Daniels, C. R., Didecyldimethylammonium chloride on wood surfaces by HPLC with evaporative light scattering detection, J. Chromatogr. Sci., 1992,30,497-499. 

Manville, J. R, J. R. Nault, Antisapstain chemical didecyldimethylammonium chloride on wood surfaces by diffuse reflectance FTIR, Appl. Spectrosc., 1997,51,721-724. 

Didecyldimethylammonium chloride YMC PVA-Sil OR S-5, 50 250 1 1 700 MeOH/CHClj/ Evaporative light 287... 

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