The results of studying of histological structure of leaf and stem , stomata
patterns, the shape and size of stomata and the shape of epidermis cells and its
walls between some of hypericum genus spceis (family clusiaceae), show that
there are rel
evant anatomical differences among the studied species, which can
be considered as taxonomical criteria for distinguishing the studied species of
Hypericum genus from each other.
Samples were prepared in different ways of Al2O3 / CdO and with one specific mole
Al / Cd: 1-0.25 mol, in the wet joint deposition method. - The thermal disintegration
of aluminum nitrate Al(NO3)3.9H2O and Cd(NO3)2.4H2O nitrate, and the reaction of
aluminum nitrate Al(NO3)3.9H2O and cadmium nitrate Cd(NO3)2.4H2O, with
NH4HCO3 with appropriate reactivity ratios, Sodium laureth sulfate (ALS), and the
effect of various methods of preparation on the properties of the textile structure of
the common oxide group Al O /CdO
2 3
.
It was found that the values of porous structure factors vary according to the
method of preparation, the two samples prepared in the manner of thermal
disintegration. The total pore size is slightly increased, while the mean pore radius
decreases from 2.71nm to 2.37nm, in contrast to the two hydrothermal heating
samples.
The total pore size increases significantly to 0.553ml /g. (SLS), a decrease in the
radius of the middle pores, and an increase in the value of the surface area.
Tow samples of Al2O3/CdO mixed oxide were prepared by co-precipitation method at
PH 8 using concentrated ammonia as precipitated agent.The mixed system was prepared by
mixing aluminum chloride solution with cadmium chloride solution and aluminum ni
trate
solution with cadmium nitrate solution which prepared in previous work.
The nature of anions affected pore radii anions.
The results showed the increasing of micro porosity.
