Uses of Sodium Phosphate Dibasic Anhydrous in water treatment

Sodium phosphate dibasic anhydrous is widely used in water treatment, whether in industrial circulating water systems or household water heaters. It is easy to use and provides stable results, making it a preferred choice for water treatment in many applications.
In industrial circulating water treatment, Sodium Phosphate Dibasic Anhydrous is primarily used to prevent scale formation. In industrial cooling water systems, water is repeatedly circulated over time, leading to the precipitation of calcium and magnesium ions, which form scale deposits on the inner walls of pipes and equipment. Thick scale deposits can impair water flow and reduce the cooling efficiency of equipment. By adding Sodium Phosphate Dibasic Anhydrous in appropriate proportions, it can react with calcium and magnesium ions to form a substance that is less prone to precipitation, allowing it to flow with the water without adhering to the pipes. In steel mills, where cooling systems use large volumes of water daily, regular addition of Sodium Phosphate Dibasic Anhydrous helps maintain pipe flow, reduces the frequency of scale removal, and significantly cuts maintenance costs.
Boiler water treatment also relies on it. The high temperature of the water inside the boiler makes scale formation more likely, and once scale forms, it not only wastes fuel but may also cause boiler damage due to uneven heating, posing safety hazards. Adding Sodium Phosphate Dibasic Anhydrous to boiler water helps regulate the water's pH level, maintaining it in a slightly alkaline state. This prevents calcium and magnesium ions from forming scale, instead causing them to form loose sediment that can be removed through the drainage system. Generally, adding a few grams to several dozen grams per ton of boiler water is sufficient, with the exact amount depending on the water's hardness. Many small boilers, such as those used for heating in school or factory canteens, employ this method for maintenance.
Swimming pool water also uses Sodium Phosphate Dibasic Anhydrous to regulate water quality. Swimming pool water must maintain an appropriate pH level; otherwise, it can irritate the skin and eyes and affect disinfection effectiveness. Sodium Phosphate Dibasic Anhydrous acts as a buffer, stabilizing the pH level between 7.2 and 7.8, a range that is more comfortable for the human body and allows disinfectants to work more effectively. During peak swimming seasons in summer, water pH levels can fluctuate easily. Adding a small amount of Sodium Phosphate Dibasic Anhydrous can quickly restore pH levels, eliminating the need for frequent water changes.
It also has applications in wastewater treatment. Some industrial wastewater contains heavy metal ions, which can pollute the environment if directly discharged. Sodium Phosphate Dibasic Anhydrous reacts with heavy metal ions such as lead and cadmium to form precipitates, thereby separating heavy metals from the water. After further purification through other processes, the treated water can meet discharge standards. For example, this method is frequently used in electronic factory wastewater treatment to remove heavy metals from the water.
When using Sodium Phosphate Dibasic Anhydrous for water treatment, it is important to pay attention to the dosage. If too little is added, the desired effect will not be achieved, and scale will still form; if too much is added, the phosphate ion concentration in the water may exceed safe levels, potentially leading to eutrophication, especially when discharged into natural water bodies. Therefore, the dosage must be carefully controlled. Additionally, when dissolving the compound, it is best to use warm water for stirring, as this facilitates faster and more uniform dissolution, thereby enhancing its effectiveness.
In summary, Sodium Phosphate Dibasic Anhydrous functions in water treatment by regulating water quality and binding harmful ions, enabling water to be utilized more effectively in various scenarios while minimizing impacts on equipment and the environment. Though it remains unseen in everyday use, it plays a crucial role in addressing various water-related issues.

sodium phosphate dibasic anhydrous cas
dibasic sodium phosphate anhydrous synonyms
sodium phosphate dibasic anhydrous molecular weight
sodium phosphate dibasic anhydrous sds
sodium phosphate dibasic anhydrous mw
sodium phosphate monobasic
sodium phosphate monobasic anhydrous
sodium phosphate monobasic monohydrate