PASP contains abundant amido bond, carboxyl and other active groups. Carboxyl group can be complex with many metal ions in water, which make PASP have high chemical activity in aqueous solution; in each structural unit of PASP, the oxygen and nitrogen atoms can easily form hydrogen bonds with water molecules, it has good hydrophilicity and water solubility. The special molecular structure of PASP ensures that it has good dispersing ability, corrosion inhibiting properties, excellent biodegradability and environmental friendly characteristics.


Item Index
Appearance Amber transparent liquid
Solid content % 39.0-41.0
Density (20℃)g/cm3 1.15-1.20
pH (1% water solution) 9.0-11.0

Water treatment; PASP has characteristic of polyanion surfactant, which can be chelated with magnesium, copper, iron, cobalt and other polyvalent metal ions after hydrolysis. As scale and corrosion inhibitor, PASP is widely used in industrial circulating water, boiler water, reverse osmosis water, oil recycled water, desalination water treatment, especially for water treatment systems of high hardness, high alkalinity, high pH and high concentration.
Petroleum exploitation; PASP can form chelation with calcium, magnesium, copper, iron and other metal ions to attach to the metal surface of the container to prevent metal corrosion. It is an excellent corrosion inhibitor, especially for preventing oil pipeline corrosion caused by carbon dioxide; PASP with molecular weight around 10000 can reduce fluid viscosity. In bentonite mud, when the dosage of PASP is 0.4%, the viscosity reduction rate can be over 70%.

Package and Storage:
200L plastic drum, IBC (1000L), customers’ requirement. Storage for ten months in shady room and dry place.

Safety Protection:
Alkaline, avoid contact with eye and skin, once contacted, flush with water.

Sodium salt of Polyaspartic Acid (PASP)
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