PASP Na/Polyaspartic Acid Sodium

Polyaspartic Acid Sodium Salt (CAS 181828-06-8): A Green, Biodegradable
Solution for Modern Industry

CAS 181828-06-8, also known as polyaspartic acid sodium salt, is a
biodegradable, non-toxic, and eco-friendly water-soluble polymer widely
recognized for its versatility and environmental benefits. Derived from natural
amino acid aspartic acid, this sustainable chemical—also referred to
as sodium polyaspartate, PASP-Na, and sodium of polyaspartic acid—is
designed for multi-industry use ranging from water treatment to agriculture,
personal care, and detergents.

Sodium Polyaspartate/PASP/PASP-Na/Sodium of Polyaspartic acid/Polyaspartic Acid
Sodium Salt
Sodium of polyaspartic acid is a water-soluble polymer synthesized by
artificial biomimetic methods. It is an excellent biodegradable polymer with
the characteristics of no phosphorus, no toxicity, no pollution, and complete
biodegradability. It is an internationally recognized "green chemical". It
originates from the natural amino acid aspartic acid, and due to its structural
characteristics of containing active groups such as peptide bonds and carboxyl
groups, it has strong chelation, dispersion, adsorption, and excellent
compatibility. Widely used as a fertilizer enhancer; Scale and corrosion
inhibitors are used in water treatment fields such as industrial cooling
circulating water, reverse osmosis water, oilfield reinjection water, metal
cutting fluid, boilers, and steam pipelines; Can be used as a dispersant in the
papermaking, printing and dyeing, and washing industries; In the field of daily
chemical products.

What Is Polyaspartic Acid Sodium Salt?
Polyaspartic acid sodium salt is synthesized using artificial biomimetic
methods to mimic biological polymerization. With no phosphorus, no pollution,
and complete biodegradability, it is classified as a “green chemical” and is
approved for industrial and consumer applications. The chemical structure
contains active peptide bonds and carboxyl groups, enabling strong chelation,
dispersion, and adsorption properties.
This highly efficient material is registered under CAS 181828-06-8 and
demonstrates excellent compatibility in both liquid and powder forms.

Specification
Inspection Item Indication Range Indication Range
Apperance Yellow to Reddish-brown clear solution Yellow to Reddish-brown
powder
Solid content % ≥40.0 ≥90.0
Density g/cm³(20℃) ≥1.22 0.25-0.55
PH(10G/L in solution) 8.5-11.5 8.5-11.5
Limiting Viscosity dl/g(30℃) 0.055-0.090 ---

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