
Potassium Sulfate
2. Molecular Formula : K2SO4
3. Molecular Weight: 174.26
4. CAS: 7778-80-5
Description
Potassium Sulfate, with the chemical formula K₂SO₄, is an inorganic salt compound composed of potassium ions (K⁺) and sulfate ions (SO₄²⁻). It usually exists in the form of colorless or white crystalline solids. It is often used as a potassium source in fertilizers and is also used in glass manufacturing, medicine, and food industries.
Features
Efficient application
Potassium Sulfate (molecular formula K₂SO₄) is a colorless or white crystalline powder with a molecular weight of 174.26. It has high solubility in water and dissolves quickly, ensuring that it can dissolve quickly and evenly in agricultural fertilization, industrial cleaning and medical applications, ensuring the efficient release and absorption of potassium and sulfur elements.
Strong thermal stability
Potassium Sulfate has a melting point of 1069℃, showing high thermal stability and is not easy to decompose or produce thermal degradation products, which enables it to maintain chemical stability in high-temperature processes such as glass manufacturing and industrial cleaning, ensuring that the physical and chemical properties of the product are not damaged during transportation, storage and application.
No side effects
Potassium Sulfate does not contain chloride ions in its molecular structure. Compared with common potassium chloride and other potassium salts, it can effectively avoid the damage of chloride ion residues to crop roots and certain industrial reaction systems in agricultural and industrial applications.
Strong adaptability
The pH value of a 5% aqueous solution is 5.5–8.5, which is in the neutral to weakly acidic range. This solution property enables Potassium Sulfate to coexist with a variety of additives, pesticides and trace elements, with a low possibility of formula incompatibility, precipitation reaction or activity failure, making it suitable for making compound liquid fertilizers or industrial cleaning agents.
1.Chemical Name: Potassium sulfate
2. Molecular Formula : K2SO4
3. Molecular Weight: 174.26
4. CAS: 7778-80-5
5. Character: It is colorless or white crystalline powder. It has bitter taste. Relative density is 2.662. Melting point is 1069℃. Easily soluble in water, insoluble in ethanol and acetone, PH is 5.5-8.5 in 5% aqueous solution.
6. Usage: It is used as seasoning and salt substitute.used as cleaning agent in glass industry. Used as bulk laxatives in medical industry.
7. Packing: It is packed with polythene bag as the inner layer, and a compound plastic woven bag as the outer layer. The net weight of each bag is 25kg.
8. Storage and Transport: It should be stored in a dry and ventilative warehouse; kept away form water and moisture during transport; unloaded with care, so as to avoid damage to bags. Furthermore, it should be stored separately from poisonous substances.
FAQ
Q: What are the chemical composition and properties of Potassium Sulfate?
A: The main component is K₂SO₄, an inorganic salt, white crystals or powder, easily soluble in water, stable chemical properties, non-toxic and harmless.
Q: What are the main uses?
A: It is widely used in agricultural fertilizers to provide potassium and sulfur elements, promote crop growth and increase yields, and is also used in industrial manufacturing and food additives.
Q: What are the advantages in agriculture?
A: It does not contain chlorine, is safe for salt-sensitive crops, can effectively supplement potassium, improve soil structure, and improve crop resistance.
Q: What crops are suitable for?
A: It is suitable for fruit trees, vegetables, tobacco, flowers and salt-alkali tolerant crops, especially for economic crops sensitive to chloride ions.
Q: Is it suitable for mixing with other fertilizers?
A: It is compatible with a variety of fertilizers, but should avoid mixing with substances that form precipitation such as calcium and magnesium, and the specific needs to be adjusted according to the formula.
Q: What are the solubility and absorption efficiency?
A: It is highly water-soluble and easy for crops to absorb. After application, it quickly releases nutrients to promote growth and improve quality.
Q: Storage and preservation precautions?
A: It should be stored in a dry and cool place to prevent moisture and agglomeration, avoid high temperature and strong sunlight, and maintain product stability.
Q: What is the effect on the pH of soil and plants?
A: Neutral salts will not significantly change the pH of the soil and are suitable for application in a variety of soil types.
Q: How is the thermal stability?
A: It has good heat resistance and will not decompose or deteriorate under normal storage and transportation conditions.
Q: Is it suitable for preparing water-soluble fertilizers or foliar fertilizers?
A: It has good solubility and is often used as a raw material for water-soluble fertilizers and foliar spray fertilizers with significant effects.
Q: What are the main application industries?
A: Agricultural fertilizers, food industry (as a potassium source and additive), chemical raw materials and pharmaceutical preparations, etc.
Q: Are there any safety risks when using it?
A: It is generally safe, but dust may cause respiratory irritation. It is recommended to take protective measures during operation.
Q: Is there a difference between agricultural grade and industrial grade?
A: Yes. Agricultural grade focuses on water solubility and potassium and sulfur content, and is suitable for fertilizers; industrial grade needs to control more impurity indicators and is often used to make glass, dyes, etc.
Q: Is it suitable for irrigation systems?
A: It is completely applicable, with good water solubility, and can be used as water-soluble fertilizers in drip irrigation and sprinkler irrigation systems to avoid blockage and be quickly absorbed by the root system.
Q: What are the advantages compared with potassium chloride?
A: It does not contain chlorine and will not cause chlorine accumulation. It is suitable for high value-added crops and avoids root burns and quality degradation.
Q: Can it be used in the food industry?
A: Food-grade potassium sulfate can be used as a potassium source additive for low-sodium salt, condiments and nutritional enhancers, and must meet food-grade standards.
Q: How to prevent caking during use?
A: The humidity of the packaging environment should be controlled, anti-caking agents can be added or dry storage conditions can be used, and the sealing integrity should be checked regularly.
Q: Is it suitable for acidic or alkaline soils?
A: It is suitable for neutral to slightly alkaline soils. In acidic soils, it can assist in regulating ion balance and improving root absorption capacity.
Q: Does it contain heavy metals or harmful residues?
A: High-quality potassium sulfate products have extremely low heavy metal content, and qualified products should meet the safety standards of relevant countries or regions.
Q: Will precipitation occur after dissolution?
A: High-quality potassium sulfate will not precipitate under reasonable pH and water quality conditions. If mixed with other fertilizers, a small test should be conducted in advance to test compatibility.
Q: Does it promote crop quality?
A: Potassium promotes sugar synthesis and transport, which helps to improve the sweetness, color, and hardness of fruits; sulfur enhances plant resistance and protein synthesis.
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