Ferrous Sulphate Heptahydrate (FeSO₄·7H₂O) plays a critical role in industries like pharmaceuticals, water treatment, and even animal nutrition. From treating iron deficiency in humans and animals to helping purify water, this compound quietly works behind the scenes to keep key systems running smoothly.

Potassium carbonate (K₂CO₃), commonly known as potash or pearl ash, is a versatile inorganic compound with a wide range of applications across various industries. Its chemical properties make it invaluable in sectors such as manufacturing, agriculture, food processing, pharmaceuticals, and water treatment.

Sodium sulfate (Na₂SO₄), commonly referred to as anhydrous sodium sulfate, is a white, odorless, crystalline powder. As a widely utilized inorganic salt, it plays a crucial role in various industries, including chemical manufacturing, textiles, paper production, detergents, and glassmaking. Its stability, cost-effectiveness, and multifunctional properties make it indispensable in numerous applications.

Polyferric sulfate (PFS) is a high-molecular-weight, pre-polymerized inorganic coagulant characterized by its superior performance, light yellow amorphous powder form, and excellent coagulation ability in a wide pH range. PFS is known for its high charge density and ability to form large flocs, which effectively remove impurities from water.This article provides a detailed overview of PFS’s properties, mechanisms, applications, and a focused comparison with ferric and ferrous sulfate to guide procurement and application in water treatment industries.

Hydrated lime, or slaked lime, is a versatile alkali whose high reactivity and moderate solubility make it indispensable in heavy-industry. In mining and metallurgy, it controls pH for ore flotation and heap leaching, neutralizes acidic process streams, and forms slag to remove impurities in steelmaking. In water and wastewater treatment, it adjusts pH and precipitates heavy metals, while in flue-gas desulfurization it captures SO₂, curbing acid-rain emissions. Beyond these, hydrated lime stabilizes soils and improves road bases at mining sites, enhances asphalt durability, and serves as a key reagent in chemical manufacturing. Abundant, cost-effective, and eco-friendly, it underpins numerous processes critical to clean production and resource recovery.