Didecyldimethylammonium chloride
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| Surname | Didecyldimethylammonium chloride | |||||||||||||||
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| Molecular formula | C 22 H 48 ClN | |||||||||||||||
| Brief description |
colorless and odorless liquid |
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| Molar mass | 362.08 g mol −1 | |||||||||||||||
| Physical state |
liquid |
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| density |
0.87 g cm −3 (20 ° C) |
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| solubility |
very heavy in water (0.39 g l −1 at 25 ° C) |
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| As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . | ||||||||||||||||
Didecyldimethylammonium chloride (DDAC-C10) is a colorless and odorless liquid that belongs to the quaternary ammonium compounds (QAC) and is effective as a biocide .
use
DDAC-C10 is used as a disinfectant in many biocidal applications. The annual consumption in Switzerland z. B. was estimated at 30 tons, with surface disinfectants ( biocidal product type 2), disinfectants for the food and feed sector (4) and wood preservatives (8) contributing the most. In molluscicides (product type 16) as well as insecticides , acaricides and products against other arthropods (18) it has not been allowed to be used since the beginning of 2008.
It is also used in water beds as a conditioner to limit gas formation from organic activities.
Didecyldimethylammonium chloride adheres well to plastics and stainless steel.
Inadequate cleaning of dairy systems after disinfection with agents containing DDAC occasionally shows residues in dairy products; However, through improved disinfection processes - in particular through thorough rinsing with drinking water - these residues can be removed or avoided.
There were also residues found on herbs and tropical fruits; Here, however, DDAC was illegally used as a fungicide, in the case of contaminated herbs via incorrectly declared plant fortifying agents without the knowledge of the organic farmers.
After the first discoveries of DDAC in the food chain in 2012, the responsible EU committee assessed the toxicity of the oral intake of DDAC for the first time and subsequently raised the limit value to 0.5 mg / kg in July 2012.
Some publications aim at the possible antibiotic properties of DDAC, in particular the use of DDAC is said to lead to the formation of resistant germs, namely to tetracyclines , chloramphenicol - and beta-lactam antibiotics ; There is currently a lack of recognized scientific studies to adequately substantiate this statement.
Web links
- Entry on Didecyl dimethyl ammonium chloride in the Consumer Product Information Database
- Entries on didecyldimethylammonium chloride at codecheck.info
Individual evidence
- ↑ a b c d e Entry on didecyldimethylammonium chloride in the GESTIS substance database of the IFA , accessed on January 10, 2017(JavaScript required) .
- ↑ Entry on Didecyldimethylammonium chloride in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
- ↑ Andreas M. Buser, Leo S. Morf: Material flow analysis of quaternary ammonium compounds for Switzerland - Modeling of consumption in biocidal applications and emissions into the environment , in: Environmental sciences and pollutant research , doi: 10.1007 / s12302-008-0025- 1 .
- ↑ Entry on didecyldimethylammonium chloride. In: Römpp Online . Georg Thieme Verlag, accessed October 30, 2014.
- ↑ Health assessment of residues of didecyldimethylammonium chloride (DDAC) in food ( BfR opinion ).
- ↑ Avoid residues when cleaning milking systems and milk tanks ( Memento of the original from October 31, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. .
- ↑ Article about raising the limit to “top agrar online”.
- ↑ Report on the monitoring program for the quaternary ammonium compounds benzalkonium chloride (BAC) and didecyldimethylammonium chloride (DDAC) on the website of QS Qualität und Sicherheit GmbH.
- ↑ Udo Pollmer's radio program “ Meal ” on August 19, 2012 with the title DDAC - Pesticides through the back door .
