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Shandong Kairui Chemistry Co., Ltd.

Main products: Phosphonates Antiscalants , Corrosion Inhibitors and Chelating Agents,Salts of Phosphonates,Polycarboxylic Antiscalant and Dispersant,Biocide and Algicide,Reverse Osmosis Chemicals,Built Scale & Corrosion Inhibitors and Pretreatment Filming Agents,Corrosion Inhibitors & Oxygen Scavenger,Surfactant & Others,Biodegradable Chelating Agents, Antiscalant and Dispersant

Hydroxyethylamino-Di(Methylene Phosphonic Acid) (HEMPA)

Update time：2026-09-21 15:27:28

Price:$ 1 - $ 1 / unit

Min Order:1 unit

Basic Info

Active content, %	50.0 min	Appearance	Colorless to light yellow transparent liquid	Chloride (as Cl-), %	5.0 max
Density (20℃), g/cm3	1.20 min	Fe, mg/L	20.0 max	pH (1% water solution)	2.0 max

Product Description

CAS No.

5995-42-6

EINECS No.

227-833-4

Molecular Weight

249
Structural Formula

Product Features

HEMPA is an organophosphoric acid, which exhibits excellent chelation, scale inhibition and corrosion inhibition. HEMPA is also compatible with methanol and water solution. When built together with other water treatment chemicals, HEMPA shows good synergistic effects. HEMPA is also an excellent dispersant for calcium-based deposits. HEMPA significantly improves the rinsing properties of washing and cleaning formulations. In high saline systems of oilfield applications, HEMPA can show its excellent calcium tolerance.

Technical Specification

Items	Index	Index
Appearance	Colorless to light yellow transparent liquid	Colorless to light yellow transparent liquid
Active content, %	50.0 min	60.0 min
pH (1% water solution)	2.0 max	2.0 max
Chloride (as Cl^-), %	5.0 max	5.0 max
Fe, mg/L	20.0 max	20.0 max
Density (20℃), g/cm³	1.20 min	1.30 min