And for more than 100 years most phosphorus was made this way. This was until people realised that bone was a great source of phosphorus. Bone can be dissolved in sulfuric acid to form phosphoric acid ...
Making it into working circuits requires dopants like phosphorous and boron to give ... Only one substance will do the job: hydrofluoric acid, or HFA. HFA has a bad reputation, and deservedly ...
EXTENSIVE studies of the Raman spectra of mixtures of nitric and sulphuric acids have been made by Chédin 1. He showed that such spectra were characterized by the appearance of two prominent ...