a.) All the chemicals used metal salt (Cobalt Nitrate
), 1, 10-phenanthroline and sarcosine were of Analytical grade (BDH).
Sodium Montmorillonite (NaMMT), Aluminium chloride (AlCl3 .6H2O) and cobalt nitrate
(Co(NO3)2.6H2O) from Sigma Aldrich while Cerium nitrate (Ce(No3)3.6H2O) from Merck were of analytical grade and were used without any further purification.
Ten mL of 0.1 M cobalt nitrate
and 10 mL of 0.1 M isopropyl xanthate were mixed in a beaker.
If further screening confirmation is necessary, add a second drop of a 0.1N solution of cobalt nitrate
to the slide; crystals will form within 20 minutes, showing the presence of potassium.
cobalt chloride and cobalt nitrate
. Cefixime exhibited lmax at 256nm in cobalt chloride while cobalt nitrate
complexes showed lmax at 211nm, Cefixime obeyed bear's law after complexation with these salts for concentration ranges at 0.1-0.6ug/ml and 0.1-1.5ug/ml respectively.
In this synthesis method, stoichiometric amounts of iron nitrate [Fe(NO).9HO], strontium nitrate [Sr(NO )2], cobalt nitrate
[Co(NO).6HO] and citric acid (used as a fuel agent) were liquefied in 50 ml distilled water to get a uniform solution.
Summary: Cobalt oxide was prepared by mechano-chemical process in solid-state by reaction of ammonium bicarbonate and cobalt nitrate
. The prepared oxide was characterized by, XRD, FTIR, SEM, and surface area and pore size analysis.
Phenol (Merck, 822296), cobalt nitrate
(Acros, A0225837), and ammonium bicarbonate (Merck, 1336) were used as received.