The results showed that the excellent current density and oxidation time were 2A/dm~2 and 1hour respectively; the microhardness of films oxided by phosphorus + hypo-phosphite sodium is higher than the sulfate film; yttrium was not introduced in the anodic film prepared in sulfate yttrium electrolyte and did not improve the toughness; the pores on the surface of film oxided by impulse current we

A sulfate yttrium sealing method with pulse current was applied on anodic film of aluminum alloy and the cracking, and electrochemical performance of the anodic film was studied.

Synthesis of p-Nitro-ethyl benzoate with potassium bisulfate as catalyst;

Synthesis of butyl isovalerate synthesis catalyzed by potassium bisulfate

Normal propyl cinnamylate was synthesized by the esterification of normal propyl alcohol with cinnamic acid in the presence of potassium bisulfate monohydrate.

Coupling reaction of formaldehyde and methyl formate over sodium bisulfate catalyst;

Synthesis of neopentyl glycol dimethacrylate catalyzed by sodium bisulfate;

Synthesis of tributyl citrate with sodium bisulfate as catalyst;