Creating a database is essential for training a neural network model, as it requires a considerable amount of data to achieve good results. Hence, 490 FP data from the literature were collected for different ester mixtures. Relevant to the present work, previous studies by Nascimento et al. and Dias et al. stand out among the others, as they provide experimental FP data for mixtures containing ethyl esters, methyl esters, and biodiesel.