Product Description 

Detail Information

Agricultural-grade and industrial-grade ferrous sulfate crystalline powders are primarily in the form of ferrous sulfate heptahydrate. While they are similar in appearance, they differ significantly in their implementation standards and core uses, catering to the needs of different fields. A detailed comparison is provided below:

1. Agricultural-grade Ferrous Sulfate Crystalline Powder

· Basic Properties: It is typically a blue-green crystalline powder, adhering to the GB10531-2006 standard. Purity requirements are relatively lenient; 90%-95% is generally sufficient for agricultural production. It is easily soluble in water but almost insoluble in ethanol. It readily effloresces in dry air and oxidizes in humid environments into a brownish-yellow basic ferrous sulfate that is difficult for plants to absorb.

· Core Uses: Primarily used as an iron fertilizer for plants and a soil conditioner. Acid-loving plants such as azaleas, gardenias, and cycads are prone to chlorosis when deficient in iron. Diluting it with water for watering or foliar spraying can supplement iron, promote chlorophyll synthesis, and alleviate yellowing. It can also adjust the pH of alkaline soils and remove moss and lichen from tree trunks. In addition, it can also be used as a pesticide to control diseases such as wheat smut and fruit tree rot.

·Usage and Storage: Dosage must be controlled during use. Excessive dosage can easily burn seedlings. If seedling burn occurs, for spraying, repeatedly rinse the leaves with clean water; for root drenching, dilute by watering the potting soil. Store in a dry, well-ventilated warehouse to prevent moisture and clumping. Keep away from seeds, other fertilizers, and other materials to prevent oxidation and reduced fertilizer effectiveness.

2. Industrial grade ferrous sulfate Crystalline Powder

·Basic Properties: Usually a light blue-green columnar crystalline powder with the molecular formula FeSO₄・7H₂O. It complies with relevant enterprise and industry standards such as Q/321100ZT 004-2001, resulting in relatively higher purity. Some products have a ferrous sulfate content ≥91% and an iron content ≥19.68%. There are also clear limits on impurities such as arsenic and heavy metals, such as arsenic content ≤0.0003% and lead content ≤0.0020%. It is readily soluble in water and glycerol, insoluble in ethanol, possesses reducing properties, and decomposes upon high heat, releasing toxic gases.

*Usage and Storage: Proper protection is required during use. Its powder is irritating to the respiratory tract, eyes, and skin; wear masks and gloves and avoid direct contact. Store in a sealed container in a cool, ventilated warehouse, away from fire and heat sources, and separate from oxidizers and alkalis to prevent moisture oxidation. Emergency spill response materials should be readily available in the storage area.

Competitive Advantages:

1. High Purity: The company employs advanced production processes and a strict quality control system to ensure the high purity of its anhydrous Magnesium Sulfate products, meeting the needs of various high-end applications.

2. Automated Production: The company utilizes automated production equipment to improve production efficiency, reduce production costs, and ensure the stability and consistency of product quality.

3. Customized Services: The company can provide customized Anhydrous Magnesium Sulfate products according to customer needs, meeting the specific requirements of different fields and customers.

4. Comprehensive After-Sales Service: The company provides a comprehensive after-sales service system to ensure that customers can receive timely and effective solutions to any problems encountered during use.