C10-C16 Alkyl Dimethyl Benzyl Ammonium Chloride - BAC 50
50% Benzalkonium chloride solution
| Code | Pack Size | Price (Inc. VAT + Postage) | |
|---|---|---|---|
| 123X | 50ml | £3.99 | Out of stock |
| 123Y | 100ml | £4.99 | Add to Cart |
| 123S | 500ml | £9.82 | Add to Cart |
| 123B | 1L | £13.17 | Add to Cart |
| 123C | 5L | £26.26 | Add to Cart |
| 123D | 20L | £66.17 | Add to Cart |
Alkyl Dimethyl Benzyl Ammonium Chloride
Benzalkonium Chloride
BAC50
( PLEASE NOTE: ALL PRICES INCLUDE DELIVERY AND VAT )
BAC50 is an aqueous solution of lauryl dimethyl benzyl ammonium chloride which complies with the U.S.N.F. monograph for benzalkonium chloride solution.
Physical
Typical properties :
Appearance at 25°C Clear liquid
Colour Pale yellow
Density at 20°C 0.99 g/cm3
Viscosity at 20°C 120 m.Pa.s
Chemical
Specification :
Active matter (mmw 354) 50.0 +/- 1.0
Free Amine (mmw 221) 0.50% max.
pH (5% sol) 8.0 +/- 1.0
Benzalkonium chloride, also known as alkyldimethylbenzylammonium chloride and ADBAC, is a mixture of alkylbenzyldimethylammonium chlorides of various even-numbered alkyl chain lengths. This product is a nitrogenous cationic surface active agent belonging to the quaternary ammonium group. It has three main categories of use; as a biocide, a cationic surfactant and phase trasfer agent in the chemical industry.
Benzalkonium chloride is readily soluble in ethanol, IPA and acetone. Although dissolution in water is slow, aqueous solutions are easier to handle and are preferred. Solutions should be neutral to slightly alkaline, with colour ranging from colourless to a pale yellow. Solutions foam profusely when shaken, have a bitter taste and a faint almond-like odour which is only detectable in concentrated solutions.
USES FOR ALKYL DIMETHYLBENZYL AMMONIUM CHLORIDE
- As a disinfectant for use in hospitals and the food industry
- Microbe corrosion inhibition in the oil industry
- It is used in pharmaceuticals such as leave-on skin antiseptics, hygienic towelettes, and wet wipes
- It is used as a preservative in cosmetics.
- it is used in skin disinfectants prior to use of syringes.
- Used in formulations of mild cleaners.
- Used in fungicdal products to kill moss and algae
- Used as phase transfer agent.
Biological activity (source: wikipedia.org)
The greatest biocidal activity is associated with the C12-C14 alkyl derivatives. The mechanism of bactericidal/microbicidal action is thought to be due to disruption of intermolecular interactions. This can cause dissociation of cellular membrane lipid bilayers, which compromises cellular permeability controls and induces leakage of cellular contents. Other biomolecular complexes within the bacterial cell can also undergo dissociation. Enzymes, which finely control a wide range of respiratory and metabolic cellular activities, are particularly susceptible to deactivation. Critical intermolecular interactions and tertiary structures in such highly specific biochemical systems can be readily disrupted by cationic surfactants.
Benzalkonium chloride solutions are rapidly acting biocidal agents with a moderately long duration of action. They are active against bacteria and some viruses, fungi, and protozoa. Bacterial spores are considered to be resistant. Solutions are bacteriostatic or bactericidal according to their concentration. Gram-positive bacteria are generally more susceptible than Gram-negative. Activity is not greatly affected by pH, but increases substantially at higher temperatures and prolonged exposure times.
Newer formulations using benzalkonium blended with various quaternary ammonium derivatives can be used to extend the biocidal spectrum and enhance the efficacy of benzalkonium based disinfection products. This technique has been used to improve virucidal activity of quaternary ammonium-based formulations to healthcare infection hazards such as hepatitis, HIV, etc. Quaternary ammonium formulations are now the disinfectants of choice for hospitals. This is on account of user and patient safety even on contact with treated surfaces and the absence of harmful fumes. Benzalkonium solutions for hospital use tend to be neutral to alkaline, non-corrosive on metal surfaces, non-staining and safe to use on all washable surfaces.
The use of appropriate supporting excipients can also greatly improve efficacy and detergency, and prevent deactivation under use conditions. Formulation requires great care as benzalkonium solutions can be readily inactivated in the presence of organic and inorganic contamination. Solutions are incompatible with soaps, and must not be mixed with anionic surfactants. Hard water salts can also reduce biocidal activity. As with any disinfectant, it is recommended that surfaces are free from visible dirt and interfering materials for maximal disinfection performance by quaternary ammonium products.
Although hazardous levels are not likely to be reached under normal use conditions, benzalkonium and other detergents can pose a hazard to marine organisms. Quaternary ammonium disinfectants are effective at very low ppm levels, so excess use should be avoided.
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