insoluble residue การใช้

• They always observed a small amount of a dark, insoluble residue.
• The insoluble residue is scanned by electron microscope.
• It then seemed certain that stardust grains were contained within Anders'acid-insoluble residue.
• In 1803, Smithson Tennant analyzed the insoluble residue and concluded that it must contain a new metal.
• To overcome this hurdle, SDS . The soluble extract alone or the insoluble residues alone were incapable of new bone induction.
• In 1803, British scientist Smithson Tennant ( 1761 1815 ) analyzed the insoluble residue and concluded that it must contain a new metal.
• The insoluble residue, containing Ru, Os, and Ir is treated with sodium oxide, in which Ir is insoluble, producing dissolved Ru and Os salts.
• In 1987 diamond grains and silicon carbide grains were found to exist abundantly in those same acid-insoluble residues and also to contain large concentrations of noble gases.
• Heating at or near the boiling point is continued for a period of time, 15 20 minutes, followed by the removal of insoluble residues ( soy pulp fiber or " okara " ) by filtration.
• Molybdenum can be extracted from wulfenite by crushing the ore to 60-80 mesh, mixing the ore with NaNO 3 or NaOH, heating the mixture to about 700 癈 ( decomposing ), leaching with water, filtering, collecting the insoluble residues which may include Union Carbide and Carbon Corp.
• At standard temperature and pressure, thorium is slowly attacked by water, but does not readily dissolve in most common acids, with the exception of hydrochloric acid, where it dissolves leaving behind a black insoluble residue, ThO ( OH, Cl ) H . It dissolves in concentrated nitric acid containing a small amount of catalytic fluoride or fluorosilicate ions; if these are not present, passivation can occur, similarly to uranium and plutonium.
• Besides the occurrence in surface patches, Clay-with-Flints is very commonly to be observed descending in pipes often to a considerable depth into the Chalk; here, if anywhere, the residual chalk portion of the deposit should be found, and it is surmised that a thin layer of very dark clay with darkly stained flints, which appears in contact with the sides and bottom of the pipe, may represent all there is of insoluble residue.