This project aims the evaluation of some amines as corrosion inhibitors in carbon steel alloys amid hydrochloric acid (pickling bath). For that, analytical aspects of corrosion process has been considered and the results ...

The medicine manufacture process may cause the final product contamination with metallic residues to the detriment of human healthy. Aiming to regulate the pharmaceutical production and establish standards of final ...

Among the sciences, chemistry stands out due to the various possibilities of addressing each topic, starting from a simple observation of an experiment or from the reading of nature itself, emerging the questions and the ...

The tests and/or study laboratories have sought the implementation of Quality Management Systems (QMS) in order to obtain a differential, which is the greater reliability and acceptance of their results. The two main systems ...

Brazilian exports of orange essential oil are responsible for moving approximately seventy-four million dollars, representing a significant portion of Brazilian business, and deserve the attention from the companies involved ...

As a consequence of student difficulties related to concepts of greater abstraction of Chemistry, the concept of Meaningful Learning according to the theory of Ausubel was used in this work. From it, the twodimensional ...

Aiming to contribute to the technological development of our country and meet the domestic demand for photochemical reactors, we have considered the possibility of developing a national product. The development of this ...

This dissertation is focused on using statistical tools (Design of Experiments, DOE) and Principal Component Analysis (PCA) for evaluating latex film formation. The experimental part was conducted at Dow Brasil R&D facility ...

It has been shown that students of latest high school year do not know the meaning of the symbols of radioactivity, and sometimes they mix up mentally with different sources of radioactivity or types of radiation. Students ...

Metallic ions may interact with polyether polyols giving macromolecular complexes. From this approach, it was investigated the interaction of cationic potassium with polyether polyols by means of several techniques in order ...