Thermal analysis, mass spectrometry, infrared spectrophotometry, X-ray phase analysis, scanning electron microscopy, and sorption methods were used in the study of thermal transformations of the products of partial hydrolysis of hydrous aluminium nitrate in ammonia medium. It has been found that the process of aluminium nitrate hydrolysis under the conditions applied and in the presence of ammonia gives boehmite as the main product, with some admixture of a basic salt.Aluminium oxide obtained from the products of partial hydrolysis of hydrous aluminium nitrate in ammonia medium at 550°C has a crystalline -Al2O3 structure. Its specific surface, as determined by low-temperature adsorption of nitrogen, exceeds 200 m2g–1. Features of the products are well developed mesopore structure and considerable ability of benzene adsorption. Calcination of the obtained aluminium oxide for 2 h at 900°C reduces its specific surface to about 110 m2 g–1.
Authors:M. Rodríguez, P. Millán, R. Rojas, and O. Martínez
The basic salt cobalt(II) hydroxide fluoride was obtained by partial hydrolysis of a 0.2M solution CoF2. Mixed Co(II)Cu(II) hydroxide fluorides with an isomorphic substitution of Co(II) by Cu(II) ions up to 20% were also prepared.
XRD data obtained on these compounds indicate that they are single-phase compounds, their X-ray powder patterns being almost
identical to the Co(OH)0.7F1.3 diagram, with Zn(OH)F-type structure. However, their stoichiometries are very close to Co1−xCux(OH)F (0≤x≤0.2).
Thermal analysis studies carried out up to 1273 K in still air or under dynamic vacuum conditions show that in air CoO or
a mixture of CoO and CuO is formed as final product. In vacuum, at high temperature, with a Ta heating surface, pure α-Co
or a mixture of α-Co and Cu is formed at about 973 K.
Authors:Mohammad Fares, Adeeb El-faqeeh, Hasan Ghanem, Mohammad Osman, and Elfatih Hassan
consequent radical scavenging probability and/or radical re-combination, which eventually led to lower %GE values. Furthermore, the decay of %GE after 4 and 5 h of copolymerization was ascribed to expected partialhydrolysis, which could cleave many COC bonds
Authors:K. Takács, E. Szerdahelyi, A. Nagy, and É. Gelencsér
bands specific to the turkey meat are still detectable. As it was a partialhydrolysis (for the purpose to improve the digestibility of proteins), an expected decrease in the intensity of proteins and also a partial protein rearrangement was noticed in
Flow Chemistry 2011 , 1 , 40 – 45 .
“ Diacylglycerol synthesis by lipase-catalyzed partialhydrolysis of palm oil under microwave irradiation and continuous flow conditions ” L. M. C. Matos , I. C. R. Leal , R. O. M. A. de
fibres. The relatively low mass of decomposition residue results most likely not only from the lower molecular weight of CaCO 3 relative to NaCO 3 , but also from the partialhydrolysis of the sodium alginate in the slightly acidic solidification and
Authors:Ilaria Bonaduce, Leslie Carlyle, Maria Perla Colombini, Celia Duce, Carlo Ferrari, Erika Ribechini, Paola Selleri, and Maria Rosaria Tiné
treatments. The same mass loss step at 470 °C occurs in the thermograms of MAG and 1-2 DAG (see Fig. 3 ), which suggests a partialhydrolysis of the heated oils.
GC/MS results highlight that heat treatment favours oxidation, as both heated oils
Authors:Robert Beckstead, Bryce Blankenagel, Cody Noconi, and Michael Winkelman
“ Greek priests could easily have harvested enough ergot [0.5 kg] from the nearby barley fields [to serve] 1000 Eleusis participants ” ( Webster et al., 2000 , p. 8).
“ Hierophantic priests might well have discovered how to achieve partial