Description

Poly-L-Aspartic Acid is a biodegradable, water-soluble polymer derived from the amino acid L-aspartic acid. This environmentally friendly compound is valued for its excellent scale inhibition, dispersancy, and chelation properties, making it a high-performance alternative to traditional polyacrylates. It is essential for industries requiring effective, non-toxic, and sustainable chemical solutions. Key sectors include water treatment, detergent formulations, agriculture, and personal care.

Application

• Water Treatment: Acts as a highly effective, biodegradable scale and corrosion inhibitor in cooling water, boiler water, and reverse osmosis systems.
• Detergents & Cleaners: Functions as a superior builder and dispersant in phosphate-free laundry and dishwashing detergents, enhancing cleaning power while being eco-friendly.
• Agriculture: Used as a nutrient enhancer and chelating agent in fertilizers to improve micronutrient uptake and soil conditioning.
• Personal Care: Serves as a gentle chelating agent and stabilizer in shampoos, soaps, and skin care products.
• Oilfield Chemicals: Employed as a scale inhibitor in squeeze treatments and production processes to prevent mineral deposition.
• Pulp & Paper: Utilized as a dispersant and chelant in bleaching processes and paper coating formulations.
• Textile Industry: Acts as a dye dispersant and anti-redeposition agent to improve color fastness and fabric quality.

Basic Information

Product Name	Poly-L-Aspartic Acid
CAS No.	25608-40-6
Molecular Formula	(C4H5NO3)n • (C4H6NO3)m
Molecular Weight	Varies (Typically 1,000 - 10,000 Da)
Synonyms	Poly(aspartic acid); PASP; L-Aspartic acid homopolymer; Poly(alpha,L-aspartic acid); Poly(aspartate); Aspartic acid polymer; 2-Aminosuccinic acid homopolymer; Biodegradable polycarboxylate
EINECS	Contact for details

Quality Control

Our Poly-L-Aspartic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure consistent performance, purity, and compliance with relevant industry standards. Certificates of Analysis (COA) documenting key parameters such as assay, molecular weight distribution, and biodegradability are available upon request.

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 product is hygroscopic (moisture-sensitive); keep the container tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (as Poly-L-Aspartic Acid)	≥ 95.0%
pH (1% Solution)	6.0 - 8.0
Loss on Drying	≤ 5.0%
Molecular Weight (Average)	3,000 - 5,000 Da (Other ranges available)
Biodegradability	≥ 60% (28 days, OECD 301B)

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