Description

L-Aspartic Acid, Homopolymer, Potassium Salt is a water-soluble, synthetic polyamino acid derived from aspartic acid. This compound is valued for its excellent chelating, dispersing, and water-softening properties, making it a high-performance and biodegradable alternative to traditional phosphates. It serves as a critical functional ingredient for manufacturers in the detergent, personal care, water treatment, and agriculture industries seeking effective and environmentally responsible solutions.

Application

• Detergent & Cleaning Formulations: Acts as a powerful builder and co-builder to sequester calcium and magnesium ions, enhancing cleaning efficiency in phosphate-free detergents, dishwashing liquids, and industrial cleaners.
• Water Treatment: Used as a scale and corrosion inhibitor in cooling water systems, boiler water, and reverse osmosis membranes due to its superior threshold inhibition and dispersancy.
• Personal Care Products: Functions as a gentle chelating agent in shampoos, body washes, and skin care products to improve stability and efficacy of preservatives and active ingredients.
• Agriculture & Horticulture: Serves as a component in foliar fertilizers and soil conditioners, aiding in micronutrient chelation and improving plant nutrient uptake.
• Industrial Processes: Employed as a dispersant and anti-scaling agent in pulp & paper processing, textile dyeing, and ceramic manufacturing.
• Oilfield Chemicals: Utilized in scale inhibition formulations for downhole applications to prevent mineral scale deposition.

Basic Information

Product Name	L-Aspartic Acid, Homopolymer, Potassium Salt
CAS No.	64723-18-8
Molecular Formula	(C4H5NO4K)n • xH2O
Molecular Weight	Variable (Polymer)
Synonyms	Poly(aspartic acid) potassium salt; Potassium polyaspartate; Poly-L-aspartic acid potassium salt; PASP-K; Aspartic acid homopolymer potassium salt; Poly(amino acid) potassium salt; Biodegradable polyamino acid potassium salt; TSIA (Thermal Polyaspartate) Potassium Salt
EINECS	Contact for details

Quality Control

Our L-Aspartic Acid, Homopolymer, Potassium Salt is manufactured under a strict quality management system. Each batch is tested to ensure consistent performance and meets specifications for key parameters such as chelation value, solid content, pH, and biodegradability. Certificates of Analysis (COA) documenting these results are provided with every shipment to guarantee traceability and compliance with your quality requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the original container tightly sealed to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White to light yellow powder or granules
Identification (IR)	Conforms
Assay (as dry basis)	≥ 90.0%
pH (1% aqueous solution)	8.0 - 10.0
Loss on Drying	≤ 8.0%
Chelation Value (CaCO3 mg/g)	≥ 300
Biodegradability	≥ 60% (28 days)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.