ADONA
Structural formula | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
General | ||||||||||||||||
Surname | ADONA | |||||||||||||||
other names |
|
|||||||||||||||
Molecular formula | C 7 H 5 F 12 NO 4 | |||||||||||||||
Brief description |
Emulsifier |
|||||||||||||||
External identifiers / databases | ||||||||||||||||
|
||||||||||||||||
properties | ||||||||||||||||
Molar mass | 395.10 g mol −1 | |||||||||||||||
Physical state |
firmly |
|||||||||||||||
Melting point |
38 ° C |
|||||||||||||||
boiling point |
100-150 ° C |
|||||||||||||||
Vapor pressure |
<0.0001 mm Hg (20 ° C) |
|||||||||||||||
solubility |
easily soluble in water (> 700 g l −1 ) |
|||||||||||||||
safety instructions | ||||||||||||||||
|
||||||||||||||||
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . |
ADONA , the ammonium salt of perfluoro-4,8-dioxa-3 H -nonanoic acid (DONA), is an emulsifier that is used as an auxiliary in the production of fluoropolymers .
history
ADONA was developed by Dyneon in the Altötting district until 2008 as a substitute for ammonium perfluorooctanoate (APFO), the ammonium salt of perfluorooctanoic acid . ADONA meets all the requirements for the polymerization process with minor process adjustments. According to the company, ADONA has an improved environmental profile and over 95% of it can be recycled.
Occurrence
There is no natural occurrence of ADONA.
safety instructions
The European Food Safety Authority (EFSA) evaluated ADONA in 2011 at the request of the Federal Office for Consumer Protection and Food Safety (BVL) and came to the conclusion that there are no safety concerns for consumers if ADONA is only used in the polymerization of fluoropolymers, which
- processed at temperatures of more than 280 ° C for at least 10 minutes, and
- at a proportion of up to 30% and temperatures above 190 ° C are to be processed into polyoxymethylene polymers which are only intended for articles for repeated use.
In 2017/18 the German Federal Environment Agency proposed ADONA for a substance assessment , which has not yet been completed.
proof
ADONA can be separated and quantified using LC-MS / MS.
literature
- Hermann Fromme, Mandy Wöckner, Eike Roscher, Wolfgang Völkel: ADONA and perfluoroalkylated substances in plasma samples of German blood donors living in South Germany . In: International Journal of Hygiene and Environmental Health . tape 220 , 2, Part B, April 1, 2017, pp. 455-460 , doi : 10.1016 / j.ijheh.2016.12.014 .
Web links
Individual evidence
- ↑ a b c H. Fromme, E. Roscher, W. Völkel, S. Dietrich, V. Fuchs, M. Wöckner, L. Cursino Hron, L. Fembacher, W. Schober: Human-Biomonitoringvon perfluorinated substances in parts of the district Altötting. Final report. (PDF) Bavarian State Office for Health and Food Safety, July 2018, pp. 8–9 , accessed on July 21, 2020 .
- ↑ a b c d e Steven C. Gordon: Toxicological evaluation of ammonium 4,8-dioxa-3H-perfluorononanoate, a new emulsifier to replace ammonium perfluorooctanoate in fluoropolymer manufacturing . In: Regulatory Toxicology and Pharmacology . tape 59 , no. 1 , February 2011, p. 64-80 , doi : 10.1016 / j.yrtph.2010.09.008 .
- ↑ harmonized classification for this substance . A labeling of ammonium 2,2,3 trifluor-3- (1,1,2,2,3,3-hexafluoro-3-trifluoromethoxypropoxy), propionate in the Classification and Labeling Inventory of the European Chemicals Agency is shown, which is derived from a self-classification by the distributor (ECHA), accessed on July 21, 2020. There is not yet a
- ↑ External identifiers of or database links for perfluoro-4,8-dioxa-3H-nonanoic acid : CAS number: 919005-14-4, EC number: 700-835-7, ECHA InfoCard: 100.221.098 , PubChem : 52915299 , ChemSpider : 78432840 , Wikidata : Q81981675 .
- ↑ a b GFD IT-Services GmbH & Co KG: "Dyneon ™ ADONA ™ Emulsifier": The brand name for the PFOA substitute from Dyneon. In: Chemdelta Bavaria. Retrieved July 21, 2020 .
- ↑ Dennis W. Smith, Scott T. Iacono, Suresh S. Iyer: Handbook of fluoropolymer science and technology . Hoboken, New Jersey 2014, ISBN 978-1-118-85008-4 , doi : 10.1002 / 9781118850220 .
- ↑ Zhanyun Wang, Jamie C. DeWitt, Christopher P. Higgins, Ian T. Cousins: A Never-Ending Story of Per- and Polyfluoroalkyl Substances (PFASs)? In: Environmental Science & Technology . tape 51 , no. 5 , March 7, 2017, p. 2508-2518 , doi : 10.1021 / acs.est.6b04806 .
- ↑ Scientific Opinion on the safety evaluation of the substance, 3H-perfluoro-3 - [(3-methoxy-propoxy) propanoic acid], ammonium salt, CAS No. 958445-44-8, for use in food contact materials . In: EFSA Journal . tape 9 , no. 6 , 2011, p. 2182 , doi : 10.2903 / j.efsa.2011.2182 .
- ↑ Maximilian Weber: material evaluations. Federal Environment Agency, May 27, 2016, accessed on July 20, 2020 .
- ↑ Gabriel Munoz, Jinxia Liu, Sung Vo Duy, Sébastien Sauvé: Analysis of F-53B, Gen-X, ADONA, and emerging fluoroalkylether substances in environmental and biomonitoring samples: A review . In: Trends in Environmental Analytical Chemistry . tape 23 , July 1, 2019, p. e00066 , doi : 10.1016 / j.teac.2019.e00066 .