What Is the Rust Removal Effect of Water Treatment Agent HEDP?

What is the rust removal effect of water treatment agent HEDP?

The rust removal effect of HEDP in the process of pickling in industrial circulating systems has always been a topic of our. Let's talk about the rust removal effect of HEDP in pickling:

1. HEDP is short for hydroxyethylidene diphosphate, which can form stable complexes with iron, copper, aluminum zinc and other metal ions, and can dissolve metal surface oxides. Those who have studied chemistry should know that rust caused by surface oxidation of metals, so HEDP can be used to remove it.

2. The chelating rust removal effect of HEDP is more by temperature and concentration. It will dissolve rust quickly in the first 2 hours, and the dissolution rate will slow down significantly as time goes on. This shows that extending the without limit has little effect on the rust removal effect of HEDP. Compared with hydrochloric acid with a mass fraction of 5%, HEDP with a mass of 1% has a lower rust removal speed, but it has many advantages that hydrochloric acid can't match in industrial site construction, so in many cases, HP can still be used as a pickling agent.

3. HEDP has good compounding effect with other corrosion inhibitors, and its rust removal effect is not after compounding, so such corrosion inhibitors can be used as ideal rust removal corrosion inhibitors for HEDP pickling solution. In order to better understand the rust removal effect HEDP when it is used as a pickling agent, and to minimize the various hazards caused by corrosion during the pickling process.

4. Experts have studied the of HEDP in dissolving rust by using the weight loss method, and the corrosion resistance of common pickling corrosion inhibitors in HEDP has been studied by the rotating weight loss method, and on this basis, the dissolution mechanism of HEDP has been preliminarily discussed, so as to provide a basis for the application of HEDP the pickling of central air conditioning. The above introduces the production process, rust removal process and effect, the advantages and key points of electroplating, and the most basic information you should have a deeper understanding of HEDP, but for the use still needs to be advised by experts, can not be added by themselves, the dosage control also need to well in order to.The effect of our company's HEDP is excellent, and everyone is welcome to consult