Figure 8From: Study of liquid-phase molecular packing interactions and morphology of fatty acid methyl esters (biodiesel) HF-NMR chemical shift, ν, of the OA head (A) 13 C and (B) 1 H at different temperatures. The carbon and proton on the carboxyl and hydroxyl groups, respectively, of OA, showed a varying behavior with increasing temperature, with maxima at approximately 320.5 and 327 K, respectively.Back to article page