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HPAA (2-Hydroxyphosphonocarboxylic Acid)
Name: HPAA (2-Hydroxyphosphonocarboxylic Acid)
Formula: C2H5O6P
CAS Number: 23783-26-8
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Properties: Dark red-brown liquid, HPAA chemical stability, easy hydrolysis, can not easily be damaged by acid-base, the use of safe and reliable, non-toxic pollution-free.
Specifications:

Item index
Index
Solid content %
≥47
Phosphite (PO33-to-total)%    
≤4.0
pH(1% solution)
1.0-3.0
Applications: HPAA mainly used as the cathode metal corrosion inhibitor, is widely used in iron and steel, petrochemical, power and pharmaceutical industries circulating cooling water system of corrosion and scale inhibitors, suitable for use in the South China low hardness and easy to corrosion inhibitor water quality, HPAA and zinc mixed better.
Packing: Normally In 250kg net Plastic Drum, IBC drum can also be used as required.
Sepecial character: HPAA can improve the solubility of zinc, with a strong role in corrosion, HPAA corrosion performance than HEDP, EDTMP high-5 ~ 8 times. HPAA with low-molecular-weight polymer components together with the organic corrosion and scale inhibitors performance.