Dedication of water content material in ketones with Karl Fischer reagents could be tough. Aspect reactions from the alcohol present in most KF reagents can result in incorrect outcomes – much more so when performing coulometric Karl Fischer titration. Alcohol-free KF reagents enable the water content material to be decided in ketones by way of a unique pathway and stoichiometric ratio with the Bunsen response. Honeywell’s Hydranal™ NEXTGEN FA reagents are alcohol free and include a stabilizer to suppress the Bunsen response. The tip result’s a fast and dependable 1:1 response of water and iodine with fewer aspect reactions than different current KF reagents for ketones available on the market.
The response of ketones with alcohol in typical KF reagents kinds ketals which finally launch water. The additional water falsifies the titration outcomes and could be particularly problematic for coulometric Karl Fischer titration.
Hydranal™ NEXTGEN FA reagents from Honeywell include no alcohol element and suppress aspect reactions higher than different Karl Fischer reagents throughout moisture evaluation in ketones. As these alcohol-free KF reagents are delicate to gentle, checks had been carried out to gauge the effectiveness of assorted experimental setups in opposition to the light-induced launch of iodine.
Different experiments had been carried out to check the flexibility of alcohol-free Hydranal™ KF reagents from Honeywell to assist measure water content material in a variety of samples. Apart from two completely different water requirements, a number of ketones (together with acetone, butanone, 1-methyl-2-pyrrolidone, 2,4-dimethyl-3-pentanone, and acetylacetone) had been used. Water content material dedication in numerous ketones is proven to be quick and reproducible with the examined Hydranal™ NEXTGEN FA reagents.
Be taught extra about water content material dedication in ketones with coulometric KF titration and alcohol-free reagents right here.