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CAS NUMBER: 5995-42-6
EC NUMBER: 227-833-4

[[(2-hydroxyethyl)imino]bis(methylene)]bisphosphonic acid; [Bis(phosphonomethyl)amino]ethanol; 2-Hydroxyethylbis(phosphonomethyl)amine; ethanolaminedi(methylenephosphonic acid); 2-Hydroxyethyliminodimethanephosphonic acid; 2-Hydroxyethyliminobis(methylene phosphonic acid); HydroxyethylaMino-di (Methylene phosphonic Acid) (HEMPA); Phosphonic acid; (((2-hydroxyethyl)imino)dimethylene)di-; Phosphonic acid; (2-hydroxyethyl)iminobis(methylene)bis-; [[(2-hydroxyethyl)imino]bis(methylene)]bisphosphonic acid; Wayplex 61A; (((2-Hydroxyethyl)imino)bis(methylene))bisphosphonic acid; 2-Hydroxyethylbis(phosphonomethyl)amine; 2-Hydroxyethyliminobis(methylene phosphonic acid); 2-Hydroxyethyliminodimethanephosphonic acid; Ethanolaminedi(methylenephosphonic acid); Phosphonic acid, (((2-hydroxyethyl)imino)dimethylene)di-; Phosphonic acid, (((2-hydroxyethyl)imino)bis(methylene))bis-; Phosphonic acid, P,P'-(((2-hydroxyethyl)imino)bis(methylene))bis-;{[(2-hydroxyethyl)imino]dimethanediyl}bis(phosphonic acid); 5995-42-6; {[(2-hydroxyethyl)imino]dimethanediyl}bis(phosphonic acid); N-(2-hydroxyethyl)iminobis(methylphosphonic acid); 89187-27-9; HYDROXYETHYLAMINO-DI (METHYLENE PHOSPHONIC ACID); N-(2-Hydroxyethyl)iminobis(methylphosphonic acid) solution



HEMPA is an organophophoric acid, which exhibits excellent chelation, scale inhibition and corrosion inhibition. It is mainly used in oilfield, detergent / soap and metal treatment etc, especially useful in the water sytems with high level of dissolved iron and calcium. It is also compatible with methanol/water solution. When built together with other water treatment chemicals, it shows good synergistic effects. HEMPA is the colorless to pale yellow mobile liquid, characteristic odor.

Handling: Do not get on skin or in eyes. Avoid breathing vapors and mists. Personnel handling this product should be thoroughly trained as to its hazards.

Storage: Store in an area that is clean, diked, dry, well-ventilated, away from incompatible materials (see Section 10. Stability and Reactivity), Recommended container material: plastic, polyethylene.

Physical Appearance: Light yellow transparent liquid
Odor: characteristic odor.
pH: 2.0 max @ 1% water solution
Density: 1.20 min g/ml at 20 C (68 F).
WaterSolubility: soluble


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