Difference between HEDP and sodium HEDP2

HEDP (1-hydroxyethylphosphonic acid) and HEDP•Na2 (1,2-dihydroxyethylidenebisphosphonic acid) are both hydroxyethylphosphonic acid compounds, and there are some differences between tha:

Chaical structure: HEDP is an abbreviation for hydroxyethylphosphonic acid with the chaical formula C2H8O7P2. HEDP-2 is an abbreviation for 1,2-dihydroxyethylidene diphosphonic acid with the chaical formula C2H6O7P2Na2.

Functional properties: HEDP and HEDP-2 are compounds with chelating effect, with good corrosion and scale inhibition performance, commonly used in water treatment, metal corrosion inhibition and other fields.

Application scope: HEDP is widely used in industrial water treatment, oil extraction, paint, textile and other fields. HEDP-2 contains two hydroxyethyl groups in its molecule, which has h3er complexing performance and industrial application value.

Appearance: HEDP is often white crystalline powder, while HEDP-2 is usually colorless or light yellow crystalline powder.

It should be noted that the above are only some basic differences between HEDP and HEDP-2, and the specific properties and applications need to refer to the relevant chaical literature and data. In actual use, please select the appropriate compound according to the specific needs and circumstances.