Sulfuric acid soil improvement agricultural use in agricultural production of sulfuric acid prices, the increasing use of calcareous soil improvement sulfuric acid at high pH values. Over the past 20 years, urea - sulfuric acid fertilizer substantial increase in production and is widely applied to the soil in the western US states. Injecting sulfuric acid used in dairies lakes fertilizer production, changes in lake pH value, to resolve a number of air and water quality issues captive animals produced during the sulfuric acid was applied to agricultural soils and water, and its main role is to dissolve the calcium and magnesium carbonate salt and bicarbonate. These calcium, magnesium and then replace the exchangeable sodium, sodium followed by water immersion removed. When the carbonate and bicarbonate is decomposed substance sulfuric acid with the more inert, releasing phosphorus, iron and other plant nutrients. Simply lowering the pH of the soil can cause many changes element solubility and improve the effectiveness of their plants. Administration of sulfuric acid in calcareous soils of high pH values, make plants more robust harvest increased. Production of fertilizer production and fertilizer ammonium sulfate (commonly known as thiamine or Feitian powder) and superphosphate (commonly known as superphosphate or SSP) Both fertilizer production consumes large amounts of sulfuric acid. Many pesticides used in the production of pesticides should be sulfuric acid as raw materials such as copper sulfate, zinc sulfate can be used as fungicides wholesale plants sulfate, thallium can be used as a rodenticide, ferrous sulfate, copper sulfate can be used as herbicides. The most common pesticides, such as 1059 emulsion (45%) and 1605 emulsion (45%) of the production of sulfuric acid are required. Preparation of burning sulfur dioxide purification system or heat treatment pyrite, preparation of sulfur dioxide (domestic pyrite, which is why commonly pyrite) S + O2═ ignite ═SO24FeS2 + 11O2═ contact with high temperature oxidation of ═8SO2 + 2Fe2O3 sulfur trioxide 2SO2 + O2═2SO3 (using as catalyst vanadium pentoxide and the reaction is a reversible reaction) with 98.3% sulfuric acid absorption xSO3 + H2SO4═H2SO4 · x SO3 (sulfuric acid binding molecule several molecules of sulfur trioxide, fuming formed sulfuric acid) SO3 + H2SO4═H2S2O7 (coke, sulfuric acid) water H2SO4 · x SO3 + xH2O═ (x + 1) H2SO4H2S2O7 + H2O═2H2SO4 purification process can be subjected to distillation industry concentrated sulfuric acid, can give a concentration of 95% to 98% Goods concentrated sulfuric acid. Phosphoric acid reaction after other methods, the use of phosphogypsum, industrial recycling, using legal sulfate dihydrate. More classic system of law as well as the use of oxalic acid and ferrous sulfate reaction FeSO4 + H2C2O4 = H2SO4 + FeC2O4 ↓ family prepared by combustion of sulfur in oxygen to give sulfur dioxide, hydrogen peroxide and then pass into the prepared sulfuric acid. Or sulfur dioxide into the water slowly oxidized to sulfuric acid. Sulfuric acid for fertilizer production | Zhengzhou Longda Chemical | Jiaozuo Wuzhi sulfate provided by the Zhengzhou Longda Chemical Products Co., Ltd. "Sodium hydroxide (caustic soda, liquid, flake, solid), sodium hypochlorite, hydrochloric acid, sulfuric acid, nitric" preferred Zhengzhou Longda Chemical Products Co., Ltd. (www.longdahuagong.com/), the company is located: Zhengzhou City, Henan Province High-tech Zone Chemical Road 99 (Chemical Road and Rita Road intersection 100 meters south west), over the years, Zhengzhou Longda Chemical to provide customers with the best quality of service, Contact: Manager Xu. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Zhengzhou Longda Chemical expect to be your long-term partner!