List of Articles Nano silica chromic acid Open Access Article Abstract Page Full-Text 1 - Nano silica chromic acid/wet SiO2 and NaNO2 as an efficient reagent system for synthesis of azo dyes based on 1-naphthol at room temperature and solvent-free conditions Abdolhamid Bamoniri Bi Bi Fatemeh Mirjalili Arash Ghorbani-Choghamarani Mohammad Yazdanshenas Abbas Shayanfar Ahmad Akbari