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Merck

A method for detecting water in organic solvents.

Organic letters (2008-09-13)
Haoran Sun, Bijia Wang, Stephen G DiMagno
ABSTRACT

The potent dehydrating ability of difluoro(aryl)-lambda (3)-iodanes is exploited to develop a convenient (19)F-NMR-based aquametry method that is more sensitive than coulometric Karl Fischer titration. The key difluoro(aryl)-lambda (3)-iodane reagents are synthesized readily from commercially available and inexpensive precursors.

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Supelco
Crimp seals with PTFE/silicone septa, silver aluminum seal, open center (10 mm opening), diam. × thickness 20 mm × 3.25 mm, tan PTFE/silicone, pkg of 100 ea