Ten aromatic buildingblocks (8–11, 23–28) containing phosphonic and sulfonic acid groups within one molecule were synthesized. Twofold nucleophilic substitution starting from 1,2,4,5-tetrakis(bromomethyl)benzene (1) followed by hydrolysis gave buildingblocks 8–11. To obtain buildingblocks 23–28, the respective bromobenzenesulfonic acids 13, 16, 18–20 and 22 had to be synthesized first. Palladium-catalysed
Materials amd methods for buffering active chlorine solutions
申请人:Pharmocon LLC
公开号:US11317632B2
公开(公告)日:2022-05-03
The invention provides buffers stable to oxidants, including chlorine and hypochlorous acid, which are usable in the pH range 3-7. The invention also provides stable, buffered solutions comprising hypochlorous acid, having a pH between 3 and 7, and disposable wiping articles impregnated with these solutions.
Solid catalyst functionalized with sulfonic groups, process for preparing it and its use
申请人:ENIRICERCHE S.p.A.
公开号:EP0386845B1
公开(公告)日:1993-08-04
MATERIALS AND METHODS FOR BUFFERING ACTIVE CHLORINE SOLUTIONS
申请人:Pharmocon LLC
公开号:EP3568017A1
公开(公告)日:2019-11-20
MATERIALS AMD METHODS FOR BUFFERING ACTIVE CHLORINE SOLUTIONS
申请人:Pharmocon LLC
公开号:US20190320658A1
公开(公告)日:2019-10-24
The invention provides buffers stable to oxidants, including chlorine and hypochlorous acid, which are usable in the pH range 3-7. The invention also provides stable, buffered solutions comprising hypochlorous acid, having a pH between 3 and 7, and disposable wiping articles impregnated with these solutions.