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perfluoro-n-octane sulfonic acid
perfluoro-n-octane sulfonic acid
Dernière mise à jour : 2016-12-01
Fréquence d'utilisation : 3
Qualité :
perfluorooctane sulfonate perfluoro[hexyl methyl ether sulfonate]
سلفونات البيرفلوروكتان بيرفلورو [هكسيل ميثيل إيثر السلفونات]
Dernière mise à jour : 2016-12-01
Fréquence d'utilisation : 1
Qualité :
the related perfluoro[hexyl ethyl ether sulfonate] (fc-53) is used as mist suppressant in chinese chrome plating enterprises.
ويستخدم مركب بيرفلورو [هكسيل ميثيل إيثر السلفونات] ذي الصلة (fc-53) كمادة مانعة لانتشار الرذاذ في شركات الطلاء بالكروم الصينية.
Dernière mise à jour : 2016-12-01
Fréquence d'utilisation : 1
Qualité :
perfluorodecane sulfonate because of the restrictions on pfos use it is expected that closely related but unregulated chemical structures, such as perfluoro[hexyl methyl ether sulfonate], could be commercialized.
ونظراً للقيود على استخدام سلفونات البيرفلوروكتان فإن من المتوقع أن تستغل تجارياً تركيبات كيميائية وثيقة الصلة غير خاضعة للتنظيم مثل مركب بيرفلورو [هكسيل ميثيل إيثر السلفونات].
Dernière mise à jour : 2016-12-01
Fréquence d'utilisation : 1
Qualité :
3.1.5. extrusion of thermoplastic polymers having precursor groups of ionexchange groups into a polymer film and conversion of the groups into ionexchange groups non crosslinked perfluorocarbon type cation exchange membranes are prepared by this method. copolymers of tetrafluoroethylene and perfluoro(alkylvinylether sulfonyl fluoride) or perfluoro(vinylether carboxylic acid ester) such as perfluoro(3,6 dioxa 4 methyl 7 octene sulfonyl fluoride), methyl perfluoro(5 oxa 6 heptenoate), methyl perfluoro(5,8 dioxa 6 methyl 9 decenoate), etc., are extruded in a thin film. the sulfonyl fluoride or alkyl carboxylate of the films are hydrolyzed into sulfonate groups or carboxylate groups, respectively. usually, the ion exchange membranes are reinforced with a woven fabric made of perfluoro polymers. because the perfluorocarbon cation exchange membranes have excellent durability in contact with strong oxidizing reagents, new applications of such ion exchange membranes have been developed: separators for electrolysis of sodium chloride solution (eisenberg and yeager 1982), solid electrolytes for hydrogen oxygen fuel cells, solid electrolytes for water electrolysis, etc.
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Dernière mise à jour : 2018-10-16
Fréquence d'utilisation : 1
Qualité :
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