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 supernatant was discarded, and 2 mL of diluted sulfuric acid (2 mol/L) were added, followed by measuring the absorbance at 415 nm after complete dissolution. Similarly, 0.1 g of seeds were ground with 2 mL of phosphate buffer (pH 7.8, 50 mmol/L), then centrifuged at 5000 rpm for...
Methanol, sulfuric acid, boric acid and potassium hydroxide were procured from Avantor Performance Materials Poland S.A., Gliwice, Poland. Milli-Q water (resistivity of 18.2 MΩ cm) was used to prepare the solutions. All experiments were performed at 25 °C. Download: Download high-...