Water treatment is a cornerstone of industrial operations, ensuring the efficiency and longevity of equipment. Among the array of chemicals employed, Sodium Phosphate Dibasic Dihydrate (CAS 10028-24-7) stands out, particularly for its role as a boiler water softener. As a dedicated manufacturer and supplier of high-quality chemical intermediates, we understand the critical importance of this application and aim to provide reliable solutions for our clients. This article highlights why this compound is indispensable in maintaining optimal water quality for industrial boilers.
Industrial boilers operate under demanding conditions, and the quality of the water used directly impacts their performance and lifespan. Hard water, containing high levels of dissolved minerals like calcium and magnesium, can lead to the formation of scale on the interior surfaces of the boiler. This scale acts as an insulator, reducing heat transfer efficiency and increasing energy consumption. Over time, severe scale buildup can cause overheating and even catastrophic failure of the boiler.
This is where Sodium Phosphate Dibasic Dihydrate comes into play. As a water softener, it chemically reacts with dissolved hardness ions, precipitating them out of the water in a manageable form. Specifically, the phosphate ions (PO4³⁻) from the dissociation of Na2HPO4 react with calcium (Ca²⁺) and magnesium (Mg²⁺) ions to form insoluble phosphate salts, such as calcium phosphate and magnesium phosphate. These precipitates are typically softer and easier to remove through blowdown than hard mineral scales.
Furthermore, it contributes to maintaining an alkaline pH in the boiler water. A slightly alkaline environment helps to passivate metal surfaces, reducing corrosion. By controlling both hardness and pH, Sodium Phosphate Dibasic Dihydrate provides a dual-action approach to protecting boiler systems.
The use of our high-purity Sodium Phosphate Dibasic Dihydrate ensures effective scale and corrosion inhibition, leading to:
For industries seeking to optimize their water treatment strategies, purchasing Sodium Phosphate Dibasic Dihydrate from a reliable Chinese manufacturer like us offers significant advantages. We ensure consistent product quality and a stable supply, essential for uninterrupted operations. If you are looking to buy this critical water treatment chemical, contact us to learn more about our product specifications, pricing, and how we can support your water treatment needs.
Manufacturing Facilities






Professional Export Experience
to Global Customers
1. 20 years of R&D, manufacturing and sales experience, serving customers in 60 countries and regions around the world;
2. Own R&D laboratory, pilot platform and large-scale production workshop, which can meet the audit requirements of global customers;
3. We can satisfy customers' perfect transition from small scale lab requirements (gram level) to commercialization requirements (hundred tons level).
A: We don't have Minimum Order Quantity, exact quantity should be provided before quotation for us to calculate the exact cost.
A: We don't provide free samples due to lots of request and expensive international courier's cost, we can deduct the sample charge after commercial order placed.
A: Our payment terms: Small or sample order: T/T IN ADVANCE. Commercial order: First order should be by T/T IN ADVANCE or L/C at sight, and following orders T/T 30~90days is acceptable subject to approval of credit application.