Zinc sulfate monohydrate is a kind of colorless needle crystal, easily soluble in water, is commonly used in aquaculture to kill ciliate products. The zinc ions generated in water combine with the proteins of the worm cells to form protein salts, causing them to precipitate; in addition, the zinc ions are easily combined with the sulfhydryl groups of the enzyme of the worm cells, the sulfhydryl groups are the active genes of the enzyme, which lose their role when combined with the zinc ions to achieve the purpose of killing. It is used for the prevention and control of solid ciliopathies in river crabs, shrimps and other aquaculture animals. In addition, zinc sulfate contains a variety of mineral elements in the water body can effectively regulate the osmotic pressure inside and outside the cells of shrimp and crab, can effectively inhibit the shrimp and crab in the water body salinity aggregation drop when the stress reaction, but also can play the role of epidermal astringency, so that the shrimp and crab body surface clear.

Zinc sulfate monohydrate production process:

Rinsing of zinc-containing raw materials → zinc-containing raw materials + sulfuric acid → medium leaching reaction → crude filtration → add double itch water + iron removal → add zinc-containing raw materials, adjust the PH value → filtration → addition of zinc powder, cadmium removal → filtration → multi-effect evaporation → concentration and crystallization → centrifugal dehydration → drying → packaging.

Uses of zinc sulfate monohydrate

1.Ecological use

Zinc can promote crop photosynthesis, zinc is a specialized activating ion of carbonic anhydrase in plant chloroplasts, carbonic anhydrase can catalyze the hydration of carbon dioxide in photosynthesis. Also zinc is an activator of aldolase, one of the key enzymes in the photosynthesis process. So the use of zinc sulfate monohydrate enhances chemosynthesis in plants. At the same time, zinc is a necessary component of protein synthesis and ribose in plant and animal cells, which proves that zinc is an essential element for the growth of plants and animals.

2. Agricultural applications

Zinc sulfate monohydrate is widely used in agriculture as a zinc supplement in fertilizers and compound fertilizers, and as an insecticide to prevent fruit tree diseases and pests. The use of zinc sulfate in agriculture can be divided into base fertilizer, foliar spray fertilizer, seed dipping and seed mixing. When plants are deficient in zinc, growth is stunted, plants are short, internode growth is severely impeded, and leaves lose green or whitish color between veins. New leaves are gray-green or yellow-white spotted. The symptoms of zinc deficiency in vegetables are shorter internodes, dwarfed plant growth, loss of green leaves, some leaves are not able to expand normally, poor root growth, and fewer or deformed fruits.

Seed mixing will first be quantitative micronutrient fertilizer dissolved in water into a dilute solution (general concentration of 0.02% to 0.1%), and then put the micronutrient fertilizer solution into a sprayer or spray bottle, sprayed with a sprayer on the seeds, spraying and stirring, so that each seed is evenly covered with fertilizer, the solution should not be too much to avoid wrinkled seed coat, resulting in rotten seeds. After mixing well, the seeds will be spread out to dry can be sown.

Second, soak the seeds, first dissolve zinc sulfate monohydrate, made of suitable concentration of 0.02% to 0.05% of the solution, and then soak the seeds for 6 to 8 hours, the seeds are fished out and slightly dried to sow. If the concentration of zinc sulfate solution is greater than 0.1%, it will affect seed germination. The method of seed soaking and fertilization requires good soil moisture in the sowing place, generally above yellow moisture is good; if the soil is dry and reaches the level of gray moisture, then the soil around the seed will consume a lot of water after sowing and affect the emergence of seedlings.

Third, seed coating will l zinc sulfate trace element fertilizer and add regulator formulated into a certain viscosity of the solution, in the coating machine rolling wrapped for a certain period of time drying can be sown. The adoption of this approach is being promoted.

3. Industrial use

Zinc sulfate monohydrate has been widely used in chemical industry, national defense, mineral processing, pharmaceuticals, rubber, electronics, printing and dyeing agents, bone glue clarifying agent and protective agent, electroplating, prevention of pests and diseases of fruit trees and circulating cooling water treatment, viscose fibers and nylon fibers and other fields. It is the raw material for manufacturing zinc salt and zinc barium white. It is used for cable zinc and electrolytic pure zinc in electrolysis industry. It is also used in the control of fruit tree nursery diseases, wood and leather preservative and man-made fiber industry. Mordant in printing and dyeing industry; preservative for wood and leather; water treatment agent for circulating cooling; clarifying and preserving agent for bone glue.

4. Aquaculture use

Zinc sulfate monohydrate is commonly used in aquaculture to kill ciliates. Zinc sulfate belongs to heavy metal salts insecticides, the zinc ions generated in the water and the insect cell proteins combined into protein salts, so that the precipitation; in addition, zinc ions are easy to combine with the sulfhydryl group of the enzyme of the insect cell, the sulfhydryl group of the enzyme's active genes, when combined with zinc ions lose their role, so as to achieve the purpose of killing. It is used for the prevention and control of solid ciliopathies in river crabs, shrimps and other aquaculture animals. In addition, zinc sulfate contains a variety of mineral elements in the water body can effectively regulate the osmotic pressure inside and outside the cells of shrimp and crab, can effectively inhibit the shrimp and crab in the water body salinity aggregation drop when the stress reaction, but also can play the role of epidermal astringency, so that the shrimp and crab body surface clear. Thus improving the commercial listing rate.

Due to the high temperature and humidity and more sultry climate, along with the culture of the individual increase, fresh bait casting increase, the accumulation of excreta, resulting in turbid, over-fertilized water environment, is the peak of polyzoa reproduction. Polyzoa in the breeding object surface, appendages, gills frequent parasitism, the formation of the so-called "long disease". Diseased shrimp and crabs are visible to the naked eye with fluffy body surface and sticky and slippery, resulting in shrimp and crab respiration, shelling difficulties. If not killed in time, it will make the culture of slow action, thin, skin ulcers, reduced resistance to disease, and in severe cases, a large number of deaths.