Abstract In this study, the alumina layer on surface of aluminum powder was removed with hydrofluoric acid. 2-Azido-1,3-dimethylimidazolinium Hexafluorophosphate (ADMHFP) and 4-azido-2,3,5,6-tetrafluorobenzoic acid (ATFBA) were coated to form Al@ADMHFP Al@ATFBA. Scanning electron microscope FTIR test results proved that ADMHFP ATFBA powder. The Al@ATFBA showed better thermal reaction combustion...

Water samples from 110 public wells in Ohio were analyzed for fluoride content using both an ion-specific electrode and a coIorimeter. In addition to the fluoride testing, analyses were performed on selected known interfering substances in the water. Sixty per cent of the samples differed by > 0.1 ppm fluoride with a mean difference of+ O. 14 ppm. Prescriptions for dietary fluoride supplementat...