Hydroxyethylamino-Di(Methylene Phosphonic Acid) ,HEMPA, 5995-42-6,its chemical formula is C4H13NO7P2, and its relative molecular weight is 249; It exhibits excellent chelation, scale inhibition and Corrosion Inhibition. HEMPA 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. Hydroxyethylamino-Di(Methylene Phosphonic Acid) is also compatible with methanol/water solution. When built together with other Water Treatment Chemicals, it shows good synergistic effects.HEMPA cas: 5995-42-6 is a colorless to pale yellow transparent liquid, typically with a content of 50% min and 60% min; HEMPA (Hydroxyethylamine Dimethylphosphonic Acid) is often compounded with other organic phosphates, polycarboxylates, and salts for use in different fields.HEMPA (Hydroxyethylamine Dimethylphosphonic Acid) is packaged in plastic drums, with a capacity of 250kg per drum, or 1250kg per ton drum, depending on user needs. Store indoors in a cool and ventilated place, moisture-proof, and strictly prevent exposure to sunlight. The storage period is twelve months.