Action time of chelating agent HEDP

HEDP (1-hydroxyethyl phosphate) is a commonly used chelating agent that can form stable complexes with metal ions. The action time of chelating agents depends on the specific application situation and environmental conditions. Generally speaking, the action time of HEDP can be divided into the following aspects:

Short term effect: HEDP can react with metal ions in a short period of time to form stable complexes and have good chelating effects on metal ions. This short-term effect can be seen within minutes to hours after adding HEDP.

Long term protection: The complex of HEDP can exist stably for a long time under certain conditions and can continuously exert its chelating effect. The specific duration of action will be influenced by factors such as water quality, temperature, pH value, etc.

Renewableity: HEDP can extend its action time by adjusting water quality and adding an appropriate amount of chelating agent. When the concentration of the chelating agent gradually decreases or is depleted by metal ions, an appropriate amount of HEDP can be supplemented to maintain its chelating effect.

It should be noted that the specific action time of HEDP may vary in different application fields and situations. In practical use, monitoring and adjustment should be carried out according to specific circumstances to ensure the best chelation effect and water quality control.