I want zarx,pleurax,naphrax ..any one..but its too much costly in india.. is there any other mountat which is easily aviable in india..or possible to make in lab..plz help me
Both Naphrax and Pleurax can be prepared in a laboratory equipped with a proper fume hood. Pleurax can be obtained from 'Diatom shop '; and Naphrax can be obtained from . Pleurax goes by the name of 'Mountmedia' commercially. The ingredients are not that costly but are highly corrosive. You will need glacial acetic acid, sulfuric acid, formaldehyde powder, naphthalene powder and pleurax needs crystalline phenol, sulfur powder and sodium carbonates etc. Moreover, it emits high quantities of H2S and the media is dissolved in isopropanol. Hence synthesis in lab should be avoided as much as possible. Anything containing toluene is no longer shipped by air. So you will need to obtain it via some other means. Acrytol is commercially available and is also a good mountant.
Our lab assistant makes the resinous substance of Eliashev. It contains aniline, formaldehyde and acetic acid. There is a description of the preparation in Russian http://volimo.ru/books/item/f00/s00/z0000013/st026.shtml. Imprint of the publication Elyashev A.A. On the simple method of obtaining a highly refractive medium for diatom analysis. // Tr. Scientific Research Institute of Arctic Geology. - 1957. - № 4. In Rus. Эльяшев А.А. О простом способе приготовления высокопреломляющей среды для диатомового анализа. // Тр. НИИ геологии Арктики. – 1957. – № 4.