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In the present study, new series of pyridinium carboxylate protic ionic liquids(PILs) were synthesized by pairing pyridinium cation with carboxylate anion from C_1–C_3 forming pyridinium formate([C_5H_6N~+][HCOO~-]),pyridinium acetate([C_5H_6N~+][CH_3COO~