by Srikanth | May 4, 2024
Residue on ignition(ROI) means sample is ignited at high temperature and the remaining is the ash. As per USP it is Residue on ignition (Ignited at 800°C +/- 50°C) Sulphated ash means in the above ash add conc. sulfuric acid. As per BP and Ep it is called as Sulphate...
by Srikanth | May 4, 2024
We generally check the inorganics by this test by converting it into their sulphates with the treatment of H2S04 and sulphates are very stable at high temperature (about up to 800-1000). while nitrates and chlorides are not stable at high temperature. Hence it is...
