2-Hydroxyphosphonocarboxylic Acid (HPAA)
1.Produc name: 2-Hydroxyphosphonocarboxylic Acid
Synonyms: HPAA
2.Molecular weight:156
Molecular Formula: C2H5O6P
3.CAS No.：23783-26-8
Einecs No.：405-710-8
4.Specification:
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Items
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Index
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Appearance
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Dark umber transparent viscous liquid
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Solid content %
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45-50
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Phosphorous acid(as PO33-)% ≤
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4.0
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pH(1% solution)
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1-3
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Density (20oC)g/cm3≥
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1.30
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5.Usage:HPAA is mainly used as metal cathode corrosion inhibitor. It can be widely used in the
circulating cool water system, play as a corrosion inhibitor in the field of steel & iron,
petrochemcal, power plant and medicine. It is suitable as a corrosion inhibitor for the low-hardness
and corrosion water of the south of China. When built with zinc salt, the effect is even better.
Chemicals
