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Azosulfonamide rhodanines are widely used as analytical reagents. They are capable of forming chelates with many of metal ions. The formed chelates are distinguished by their stability due to the formation of chelate ring. From the structural point of view, these were considered as metal indicators since they posses functional groups capable of chelate formation joined directly to the central metal ions.In the present investigation, proton-ligand stability constant, pKH, of azosulfonamide rhodanine compounds will be determined potentiometrically in 20% (v/v) DMF- water mixture. The...

You find in this divine little book discussions of many stories and events linked to the prophet Muhammad (Communication with Al'lah and peace are through him) which have been mentioned in the famous historic references such as the false story of bewitching the prophet, the story of incising and opening the prophet's chest, some sayings which describe his mortal nature as a different one from the nature of human being, and the sayings which clarify that he sometimes mistook and God blamed and corrected his mistakes. This Divine little book refutes all of what has been mentioned above of false...