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Zinc sulfate heptahydrate powder is an inorganic compound, CAS 7446-20-0, The molecular formula is ZnSO4 · 7H2O, commonly known as alum or zinc alum. Colorless rhombohedral prismatic crystal, white crystalline powder, soluble in water, slightly soluble in ethanol. When heated to 200 ℃, it loses water and decomposes at 770 ℃. Swallowing is harmful, can cause serious eye damage, has extremely high toxicity to aquatic organisms, and may have long-term adverse effects on the aquatic environment. It can be used as a mordant, wood preservative, bleaching agent in the paper industry, as well as in medicine, artificial fibers, electrolysis, electroplating, pesticides, and the production of zinc salts.
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Chemical Formula |
H14O11SZn |
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Exact Mass |
286 |
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Molecular Weight |
288 |
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m/z |
286 (100.0%), 288 (57.4%), 290 (38.6%), 289 (8.4%), 288 (4.5%), 290 (2.6%), 288 (2.3%), 292 (1.7%), 290 (1.3%), 292 (1.3%) |
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Elemental Analysis |
H, 4.91; O, 61.20; S, 11.15; Zn, 22.74 |
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Composition
Zinc sulfate heptahydrate belongs to the sulfate salt family, formed by the reaction of zinc oxide (ZnO) or metallic zinc with sulfuric acid (H₂SO₄). The heptahydrate structure (ZnSO₄·7H₂O) is stabilized by hydrogen bonding between water molecules and sulfate ions, giving it a molar mass of 287.53 g/mol. At room temperature, it exists as a colorless crystalline solid but may appear white due to light scattering from its powdered form.
Zinc sulfate heptahydrate powder, with the chemical formula ZnSO₄·7H₂O, is an important inorganic zinc salt. Due to its excellent water solubility and wide range of applications, it plays a crucial role in various industries. The following provides a detailed introduction to its applications in agriculture, industry, medicine, feed, food, and other fields.Zinc sulfate heptahydrate powder, with the chemical formula ZnSO₄·7H₂O, is an important inorganic zinc salt. Due to its excellent water solubility and wide range of applications, it plays a crucial role in various industries. The following provides a detailed introduction to its applications in agriculture, industry, medicine, feed, food, and other fields.
Agricultural Field
In agriculture, zinc sulfate heptahydrate powder is an important trace element fertilizer, which has a significant promoting effect on the growth and development of crops.
Supplementing zinc element
Zinc is one of the essential trace elements for plant growth. It participates in the synthesis and activation of various enzymes in plants and has significant impacts on carbohydrate metabolism, protein synthesis, and auxin formation. When the zinc content in the soil is insufficient, it can cause zinc deficiency symptoms in crops, such as yellowing of leaves, slow growth, and reduced yield. The anhydrous zinc sulfate powder can provide sufficient zinc elements for crops, effectively preventing and treating zinc deficiency symptoms.
Increasing crop yield and quality
Appropriate application of anhydrous zinc sulfate powder can promote photosynthesis and respiration in crops, enhance their stress resistance, and increase crop yield and quality. For example, in fruit tree cultivation, anhydrous zinc sulfate powder can promote fruit enlargement and coloring, increase the sugar and vitamin C content of fruits, and improve the taste and nutritional value of fruits.
Preventing crop diseases
Anhydrous zinc sulfate powder also has certain bactericidal effects and can prevent some crop diseases caused by fungi and bacteria, such as moldy disease and brown spot disease. By spraying anhydrous zinc sulfate solution, a protective film can be formed on the surface of the crops, preventing the invasion and reproduction of pathogenic bacteria, thereby protecting crops from being attacked by diseases.
Industrial field
In industry, the application scope of anhydrous zinc sulfate powder is wide, involving electroplating, chemical industry, chemical fibers, papermaking and other industries.
Gypsum zinc sulfate powder is one of the important raw materials for electroplating zinc. During the electroplating process, gypsum zinc sulfate powder dissolves in the electrolyte, providing zinc ions, allowing the metal surface to be coated with a uniform and dense zinc layer, thereby achieving the functions of corrosion prevention, aesthetics, and enhanced conductivity. The purity of gypsum zinc sulfate powder has a significant impact on electroplating quality. High-purity gypsum zinc sulfate powder can improve the adhesion and corrosion resistance of the electroplated layer.
Chemical industry
Gypsum zinc sulfate powder is an important raw material for manufacturing other zinc salts, such as stearic acid zinc and basic carbonate zinc. These zinc salts have wide applications in industries such as rubber, plastics, coatings, and inks. Gypsum zinc sulfate powder can also be used as a carrier for catalysts, participating in some chemical reaction processes to improve reaction efficiency and selectivity.
Gypsum zinc sulfate powder is mainly used in the production of viscose fibers and nylon fibers in the textile industry. In the production of viscose fibers, gypsum zinc sulfate powder acts as a coagulant, causing the cellulose sulfonate solution to solidify into fibrous substances. In the production of nylon fibers, gypsum zinc sulfate powder serves as a carrier for catalysts, participating in the polymerization reaction process to improve polymerization efficiency and fiber quality.
Paper industry
Zinc sulfate heptahydrate powder is mainly used as a bleaching agent and a retention aid in the paper industry. During the bleaching process, zinc sulfate heptahydrate powder can react with the pigment substances in the pulp, causing them to lose color and thereby increasing the whiteness of the paper. In the retention aid process, zinc sulfate heptahydrate powder can combine with the fine fibers and fillers in the pulp to form larger clumps, thereby improving the retention rate of the pulp and the strength of the paper.
Medical field
In the medical field,gypsum zinc sulfate powder has functions such as astringency,emetic,and antibacterial,and is widely used in the preparation of zinc supplements,astringent drugs,and topical medications.
Zinc supplement medicine
The powder of heptahydrate zinc sulfate is one of the important raw materials for preparing zinc supplement medicine. Zinc supplement medicine can provide the human body with sufficient zinc elements, preventing and treating various diseases caused by zinc deficiency, such as intestinal dermatitis, oral ulcers, chronic ulcers, etc. The oral formulation of heptahydrate zinc sulfate powder has the characteristics of fast absorption and high bioavailability, and is one of the commonly used zinc supplement drugs in clinical practice.
Contraction medicine
When used externally, the powder of heptahydrate zinc sulfate has a contracting effect, which can precipitate proteins, reduce tissue exudation, promote the formation of granulation tissue and wound healing. Therefore, the powder of heptahydrate zinc sulfate is widely used in the preparation of contraction medicine, such as drugs for treating skin inflammations, ulcers and other skin diseases.
Antibacterial medicine
The powder of heptahydrate zinc sulfate also has certain antibacterial effects, which can inhibit the growth and reproduction of some bacteria. Therefore, the powder of heptahydrate zinc sulfate is also used to prepare some antibacterial drugs, such as drugs for treating eye infections like conjunctivitis.
Feed field
In the feed field, the powder of heptahydrate zinc sulfate is a component of many enzymes, proteins, ribose and other substances in animals' bodies, participating in carbohydrate and fat metabolism, and can catalyze the mutual conversion of pyruvic acid and lactic acid, promoting animal growth.
Supplementing zinc: Animals have a high demand for zinc. Zinc deficiency can lead to problems such as slow growth, reduced reproductive function, and weakened immunity in animals. The anhydrous zinc sulfate powder, as a feed additive, can provide animals with sufficient zinc elements to meet their growth and reproduction needs.
Improving feed utilization: Appropriate addition of anhydrous zinc sulfate powder can increase the utilization rate of feed by animals, promoting the absorption and utilization of nutrients. This helps to reduce feed costs and improve breeding efficiency.
Enhancing animal immunity: Zinc is an important component of the animal's immune system and participates in the proliferation and differentiation process of immune cells. Appropriate addition of anhydrous zinc sulfate powder can enhance the immunity of animals and improve their resistance to diseases.
Food Field
In the food field, anhydrous zinc sulfate powder is used as a food zinc fortifier and is widely applied in salt, infant food, dairy products, cereal and its products, and other foods.
Supplementing zinc
Zinc is one of the essential trace elements for the human body, playing a crucial role in maintaining normal physiological functions. Adequate intake of zinc helps prevent and treat various diseases caused by zinc deficiency. The powder of potassium sulfate heptahydrate, as a food zinc fortifier, can provide sufficient zinc to food, meeting the body's demand for zinc.
Improving food nutritional value
Adding the powder of potassium sulfate heptahydrate in appropriate amounts can enhance the nutritional value of food and improve its health-promoting functions. For example, adding the powder of potassium sulfate heptahydrate to infant food can help promote the growth and development as well as the intellectual development of infants.
Other fields
In addition to the above fields, the powder of potassium sulfate heptahydrate also plays an important role in other fields.
Water treatment field
Zinc sulfate heptahydrate powder, as a cathodic type corrosion inhibitor, is widely used in circulating cooling water systems. It can rapidly form zinc hydroxide precipitates with OH⁻ accumulated at the cathode area, depositing on the cathode surface and inhibiting cathodic reactions, thereby achieving the effect of corrosion inhibition. Zinc sulfate heptahydrate powder can also be combined with polyphosphates, organic phosphonates, etc., to enhance the corrosion inhibition effect.
Dyeing field
Zinc sulfate heptahydrate powder is mainly used as a mordant and an alkali-resistant agent for vat blue salt dyeing in the dyeing industry. It can combine with dye molecules to form stable complexes, improving the dyeing rate and fastness. Zinc sulfate heptahydrate powder can also adjust the pH value of the dyeing solution to make the dyeing process more stable and reliable.
Wood and leather preservation field
Zinc sulfate heptahydrate powder has a certain anti-corrosion effect, which can inhibit the growth and reproduction of microorganisms in wood and leather, extending the service life of wood and leather. Therefore, zinc sulfate heptahydrate powder is widely used in the preservation treatment of wood and leather.
FAQ
What is zinc sulfate heptahydrate used for?
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In the pharmaceutical industry, Zinc Sulphate Heptahydrate is a key ingredient in dietary supplements designed to address zinc deficiencies. These supplements help maintain healthy immune function, support skin integrity, and promote overall cellular health.
What is zinc sulfate powder used for?
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Zinc sulfate is used medically as a dietary supplement. Specifically it is used to treat zinc deficiency and to prevent the condition in those at high risk. This includes use together with oral rehydration therapy for children who have diarrhea.
What is the difference between zinc sulfate and zinc sulfate heptahydrate?
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Zinc sulfate monohydrate is easily soluble in water, is not easy to absorb moisture and agglomerate, is easy to store, and is suitable for the feed industry; Zinc sulfate heptahydrate dissolves in water and is most suitable for foliar fertilizer and other industries with high requirements for water solubility.
How to make zinc sulphate heptahydrate?
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Zinc sulfate crystallises from aqueous solution as a heptahydrate, zinc sulfate-7-water, ZnSO4. 7H2O. You can make zinc sulfate-7-water in the laboratory by reacting zinc carbonate with dilute sulfuric acid. sulfuric acid is an irritant.
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