OBJECTIVE: To study the effects of different dispersing media, such as atolin and ethyl benzoate, on sustained-release properties of chitosan microspheres.
Leaf structure of "Aquilaria sinensis" (Lour.) Gilg (Thymelaeaceae) observed under light microscope shows that the leaves are of typically bifacial exhibiting xeromorphic characters.
The value of oil absorption, viscosity of Nujol mull, specific surface area, contact angle, distribution of particle size and dispersivity of the calcium carbonate particles were also characterized.
The process is carried out by taking refinery paraffin, palmic acid, mineral butter, ceresine wax and candle essence as raw materials, heating, dissolving, and mixed freezing to obtain final product.
Now you're probably picking up on a lot of words that you've heard before, even outside of chemistry class: octane, propane, methane, paraffin, and so on.
They established chemical research laboratories which devised new and inexpensive methods for refining the product and developed invaluable byproducts, such as paraffin, naphtha, vaseline, and lubricating oils.