Sulfuric acid or hydrochloric acid can be mixed with water to any levil of dilution. Pour the acid slowly into the water. Do not pour the water into the acid.Dilute acids act vigorously with zincto produce hydrogen. How will you test the gas produced by the action of dilute hydrochloric ...
Wet method. Zinc sulfate and sulfuric acid reaction to get zinc sulfate, and then reaction with sodium carbonate and ammonia respectively, the obtained zinc carbonate and zinc hydroxide were used as raw materials to produce zinc oxide.The reaction equation is as follows: ...
It is prepared by reacting zinc oxide with potassium dichromate and sulfuric acid, filtering, separating, drying and crushing. Reaction equation: 4ZnO+H2SO4+2K2Cr2O7+2H2O→4ZnO·4CrO3·K2O·3H2O+K2SO4 Operation method: In a reactor with agitator, make 100 parts of zinc oxide slurry with 8...
The total Chl concentration was calculated using the following equation: Total Chl=(20.31×𝐴645+8.05×𝐴663)/FWTotal Chl=(20.31×A645+8.05×A663)/FW (1) where FW represents fresh weight. As the different treatments resulted in different plant sizes, leaves from more than five ...
During supergene oxidation, the large amount of sulfuric acid generated from the alteration of pyrite could have caused the pH of the fluid to decrease and become acidic, leading to the incorporation of Ga into Fe-oxide when the pH of the metal-bearing solution is extremely low (pH < 4) ...