How to use HEDP-Na2？

HEDP-Na2, as a chaical that plays an important role in many fields, is generally used as a scale inhibitor at a concentration in the range of 2 to 20 mg/L. For example, in some industrial cooling circulating water systas, when the content of calcium and magnesium ions in the water is relatively low and the tendency of scale formation is not very significant, the concentration of HEDP Na2 can effectively inhibit the formation of scale by controlling it at about 2-10mg/L.

In the case of more complicated water quality, the concentration of HEDP Na2 is usually in the range of 2 to 20mg/L, which can effectively inhibit the formation of scale. In the case of complicated water quality, high ion concentration and high risk of scale formation, it may be necessary to increase the concentration to 15-20mg/L in order to achieve the desired scale inhibition effect.

When HEDP-Na2 is used as a corrosion inhibitor, the general use of the concentration of 20 to 100mg/L. Numerous studies have shown that It plays a key role in the formation of protective films on metal surfaces to slow down the corrosion process. Take common steel equipment as an example, in the more corrosive medium, the concentration of it adjusted to 60 to 100mg/L, can significantly reduce the corrosion rate of steel, prolonging the service life of the equipment. Under relatively less corrosive conditions, concentrations of 20 to 50mg/L can also provide a certain degree of corrosion protection.

As a cleaning agent, HEDP-Na2 general use of the concentration of 1000 to 2000mg / L. In some industrial equipment cleaning operations, such as heat exchanger descaling cleaning, a high concentration of HEDP-Na2 solution can quickly decompose the stubborn dirt, improve cleaning efficiency. For example, in a large chaical plant heat exchanger cleaning cases, the use of 1500mg / L of HEDP-Na2 solution, successfully in a short period of time to raove the accumulation of many years of dirt, to restore the good performance of the equipment.

In addition, HEDP-Na2 is often used in conjunction with polycarboxylic acid-based scale inhibitors and dispersants. From the point of view of chaical principle, polycarboxylic acid scale inhibitor and dispersant can enhance the scale inhibition performance of HEDP Na2, and the synergistic effect of the two can more effectively cope with the complex water quality conditions and diversified scaling problas. In practice, this kind of co-operation has been widely verified and applied in many industrial production scenarios, which plays an important role in guaranteeing the stable operation of production equipment and improving production efficiency.

Let’s take a look at Kairui Chemical’s HEDP production facility.

And of course take a look at a previous article we wrote on the performance and uses of HEDP2na

Contact information of HEDP 2Na Manufacturer Kairui Chemistry

TEL: +86-632-3671188

FAX: +86-632-3671189

E-mail: export@krchemical.com

ADD: No.1, Fuqian South Road, Xuecheng Chemical Industrial Park, Xuecheng District, Zaozhuang City, Shandong Province, China