Polysuccinimide (PSI) - Key intermediate for Sodium Polyaspartate (CAS 31586-29-5). Features sustained-release properties for water treatment scale inhibition, detergents, building materials. Eco-friendly and biodegradable.
| Appearance | Beige to light brown powder |
| Solubility | Almost insoluble in water, slow hydrolysis |
| Inherent Viscosity | 0.15-0.35 dL/g |
| Molecular Weight Distribution | 10,000-50,000 g/mol |
| Moisture Content | ≤ 3.0% |
Product Name: Polysuccinimide (PSI)
CAS Number: 31586-29-5
Molecular Formula: (C₄H₃NO₂)ₙ
Molecular Weight: 10,000-50,000 g/mol (n≈100-500)
Synonyms:
Polysuccinicimide, PSI Intermediate, Polyaspartic Acid Precursor
Polysuccinimide (PSI) is a key intermediate in the production of Sodium Polyaspartate (PASP-Na), appearing as a beige to light brown solid powder. This product features unique slow-release hydrolysis characteristics, gradually hydrolyzing to polyaspartic acid in water. This sustained-release mechanism provides exceptional performance in specialized applications requiring prolonged action, such as scale inhibition in water treatment.
Sustained Release: Gradually hydrolyzes to PASP in water for long-lasting effects
Eco-Friendly: Fully biodegradable with environmentally harmless end products
Multifunctional: Combines scale inhibition, dispersion, and surface activity
Process Advantage: Serves as a key intermediate for further chemical modification
Parameter
| Specification | |
Appearance | Beige to light brown powder |
Solubility | Almost insoluble in water, slow hydrolysis |
Inherent Viscosity | 0.15-0.35 dL/g |
Molecular Weight Distribution | 10,000-50,000 g/mol |
Moisture Content | ≤ 3.0% |
Ash Content | ≤ 0.5% |
Water Treatment Industry
Sustained-release scale inhibitor: Continuous PASP release for long-term protection
Cooling water systems: Ideal for systems requiring stable, prolonged protection
Detergent Industry
Surfactant intermediate: For producing eco-friendly surfactants
Multifunctional additive: Provides dispersion and anti-redeposition functions
Building Materials
Gypsum modifier: Enhances gypsum product performance
Cement additive: Improves cement durability
Industrial Applications
Odor inhibition: Raw material for industrial deodorants
Chemical synthesis: Precursor for special chemical synthesis
Packaging Options: 25kg cardboard drums, 500kg FIBCs (customizable)
Storage Conditions: Store sealed in cool, dry place away from moisture
Shelf Life: 36 months (under proper storage conditions)
Non-toxic and environmentally friendly. Recommended to wear dust masks during handling. Avoid prolonged exposure to humid environments.
Documentation:
[Safety Data Sheet (SDS)]
[Technical Data Sheet (TDS)]
[Application Guide]
Sample Request:
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Technical Service:
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Disclaimer: Product information is based on current test data and provided for reference only. Users are recommended to conduct tests for specific applications.
| Appearance | Beige to light brown powder |
| Solubility | Almost insoluble in water, slow hydrolysis |
| Inherent Viscosity | 0.15-0.35 dL/g |
| Molecular Weight Distribution | 10,000-50,000 g/mol |
| Moisture Content | ≤ 3.0% |
| Ash Content | ≤ 0.5% |
