Understanding the mechanisms by which water treatment chemicals work is crucial for optimizing their application. NINGBO INNO PHARMCHEM CO.,LTD. offers Ferric Sulphate, a chemical whose effectiveness is rooted in well-established scientific principles of coagulation and flocculation. This article explores the science behind how Ferric Sulphate purifies water.

At its core, Ferric Sulphate (Fe₂(SO₄)₃) functions by neutralizing the electrical charges of suspended particles in water. These particles, such as colloids, often carry a negative surface charge, causing them to repel each other and remain dispersed. When Ferric Sulphate is introduced, it dissociates into trivalent iron ions (Fe³⁺) and sulfate ions (SO₄²⁻). The highly charged Fe³⁺ ions readily adsorb onto the surface of these suspended particles, effectively neutralizing their negative charges. This process, known as charge neutralization, is the initial and critical step in coagulation.

Once the charges are neutralized, the destabilized particles begin to aggregate through van der Waals forces. This leads to the formation of very small, nearly neutral aggregates called micro-flocs. Following coagulation, the process of flocculation takes over. This involves gently mixing the water to promote collisions between the micro-flocs, causing them to grow into larger, visible flocs. The polymeric nature of some ferric species in solution can also contribute to bridging between particles, further enhancing floc growth and stability.

The effectiveness of Ferric Sulphate in removing specific contaminants like heavy metals and phosphates is also a result of chemical reactions. For instance, it reacts with dissolved phosphates to form insoluble ferric phosphate precipitates, which then settle out with the flocs. Similarly, many heavy metal ions can be co-precipitated or adsorbed onto the iron hydroxide flocs that form during the hydrolysis of Ferric Sulphate.

The high Fe³⁺ content and ready solubility of our Ferric Sulphate ensure a readily available source of active ions for effective coagulation. This chemical efficiency translates into superior performance in removing turbidity, color, and a wide range of dissolved and suspended impurities. NINGBO INNO PHARMCHEM CO.,LTD. provides Ferric Sulphate that leverages these fundamental chemical principles to deliver optimal water purification results for our clients.