The use of napthalene derivatives in inorganic analysis: The nitronaphthols as fluorimetric reagents for stannous tin

Abstract

Thirteen nitronaphthols have been examined and found to be of use in the fluorimetric detection of stannous tin. The reagents were capable of detecting 10 -4 to 10 -5 g stannous tin whilst the nitro derivatives of 2-naphthol produced more intense fluorescence than the corresponding derivatives of 1-naphthol. Of the series examined, 8-nitro-1 -naphthol was the least reactive, and this was attributed to the presence of intramolecular hydrogen bonding between the nitro and hydroxyl groups in this compound.