VIBRATIONAL STUDIES OF Na 2 SO 4, K 2 SO 4, NaHSO 4 AND KHSO 4 CRYSTALS

ABSTRACT Sodium sulphate, Potassium sulphate, Sodium hydrogen sulphate and Potassium hydrogen sulphate crystals were grown by aqueous solution method. FTIR and Laser Raman spectra were measured for the crystals. Sulphate group is identified by the frequency assignments