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Hydroxyethylamino-Di(Methylene Phosphonic Acid) (HEMPA)

Hydroxyethylamino-Di(Methylene Phosphonic Acid) (HEMPA)

CAS No.: 5995-42-6

Molecular Formula: C4H13NO7P2

Relative Molecular Mass: 249

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CAS No.: 5995-42-6

Molecular Formula: C4H13NO7P2

Relative Molecular Mass: 249

Structural Formula:

Hydroxyethylamino-Di(Methylene Phosphonic Acid) (HEMPA)


1· Performance and Applications


HEMPA is an organophosphonic acid with good chelating, scale inhibition and corrosion inhibition effects. It is mainly used in oil fields, detergents/soaps and metal treatment, especially suitable for water systems with high dissolved iron and calcium content. It is also compatible with methanol/water solutions. When formulated with other water treatment chemicals, it shows good synergistic effect.


2· Technical Specifications


Item Index I Index II
Appearance Colorless or light yellow transparent liquid Colorless to light yellow transparent liquid
Active Component % ≥50.0 ≥60.0
Chloride (as Cl-) % ≤5.0 ≤5.0
Iron (as Fe2+) Content mg/L ≤20.0 ≤20.0
Density (20℃) g/cm3 ≥1.20 ≥1.30
pH (1% Aqueous Solution) ≤2.0 ≤2.0


3· Usage Method


HEMPA is often formulated with other organophosphorus, polycarboxylic acids and salts for different fields.


4· Packaging and Storage


HEMPA is packed in plastic drums,Standard capacities: 25kg, 250kg, 1250kg (IBC tank).Note: Packaging weight can be adjusted according to customer requirements. Store in a cool and ventilated indoor place, keep away from moisture and direct sunlight. The shelf life is twelve months.


5· Safety Protection


HEMPA is acidic. Pay attention to labor protection during operation. Avoid contact with skin, eyes, etc. In case of contact, rinse immediately with plenty of clean water.

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Shandong Prio New Material Technology Co., Ltd. is located in Juye Chemical Industrial Park, Heze, Shandong Province. The company specializes in environmentally friendly water treatment agents, integrating R&D, production, sales, and technical services to deliver one-stop comprehensive water treatment solutions.

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