The present work deals with the modelling and experimental measurement (density and ultrasonic velocity) of thermophysical properties of short chain hydroxylic compounds (C 1 -C 6 ). Fitting equations were applied to the experimental data in order to correlate for later computer based design. Different derived magnitudes were computed from the experimentally measured density and ultrasonic velocity, due to their importance for theoretical calculations and development of new models. The estimation of the studied properties was made by the application of different theoretical procedures. A wide comparison was made with available open literature, being evident the lack of reliable information in the ranges studied until now.

The HET-CAM (Hen"s Egg Chorioallantoic Membrane) assay is a qualitative alternative method to the in vivo Draize Rabbit Eye test to assess the irritancy potential of chemicals. In this work, for the first time the ophthalmic irritation of 13 different protic ionic liquids has been evaluated using ImageJ and PhotoSkape image processing programs to analyze the results of the HET-CAM assay. The irritation potential of a substance can be quantified using these computational tools by observing blood vessel changes like lysis, hemorrhage and coagulation. In conclusion, the modification of the established HET-CAM assay made it possible to determine the damage to minute blood vessels, highlighting the low-irritant profile of some studied protic ionic liquids to the ocular tissues.

Babassu (Orbignya speciosa) is a Brazilian palm with extraordinary importance in socioeconomic and ecologic terms. It is found in humid tropical areas, especially in degraded landscapes. There are several uses for babassu coconut and babassu oil. However, their immense potential for large-scale providing other industrial products still needs to be explored due to the necessity for modern scale planning and deep knowledge of vast spectrum thermodynamic properties. This paper gathers a new experimental physico-chemical study of the temperature effect on two critical properties, density and ultrasonic velocity for babassu oil, due to its rising economic significance and a high potential for intensive farming in regions with low economic resources. We consider how accurately different theoretical prediction methods work due to modern processes, design, and algorithm simulations being strongly computer-oriented. The Agrawal-Thodos equation for density and Collision Factor Theory for ultrasonic velocity was selected, mainly attending to ease of use and range of application. We observed a good response at the studied conditions, despite geometrical simplifications into triglyceride molecules and using estimated critical magnitudes by molecular group contribution approach. A broad comparison was made with disposable open literature thermodynamic data, showing an essential dispersion of data, and highlighting the quality of the experimental data presented in this work.