Description

2-Iminopyrrolidone-5,5-Diphosphonic Acid is a specialized organophosphorus compound featuring a unique heterocyclic structure. This molecule matters for its powerful chelating and scale-inhibiting properties, derived from its dual phosphonic acid groups and imino functionality. Industries requiring high-performance water treatment, metal surface treatment, or advanced detergent formulations will find this chemical particularly valuable for controlling mineral scale and stabilizing metal ions.

Application

• Industrial Water Treatment: Acts as a highly effective scale and corrosion inhibitor in cooling water systems, boilers, and reverse osmosis membranes.
• Detergent & Cleaning Formulations: Serves as a superior builder and sequestrant to enhance cleaning power by inactivating water hardness ions like calcium and magnesium.
• Metal Surface Treatment: Used in metal finishing, pickling, and plating baths to prevent unwanted precipitation and stabilize process solutions.
• Oilfield Chemicals: Applied in scale squeeze treatments and production chemicals to control mineral deposition in wells and pipelines.
• Pulp & Paper Processing: Functions as a chelant and dispersant to control metal ion interference and improve process efficiency.
• Textile Auxiliaries: Employed in bleaching and dyeing processes to sequester metal ions that can cause fabric damage or color inconsistencies.
• Personal Care Products: Potential use in advanced cosmetic formulations as a stabilizer for active ingredients sensitive to metal-catalyzed degradation.
• Agricultural Chemicals: Can be utilized as a component in micronutrient fertilizers or pesticide formulations to improve stability and bioavailability.

Basic Information

Product Name	2-Iminopyrrolidone-5,5-Diphosphonic Acid
CAS No.	81292-80-0
Molecular Formula	C4H8N2O7P2
Molecular Weight	258.06 g/mol
Synonyms	2-Imino-5,5-diphosphonopyrrolidine; 2-Iminopyrrolidine-5,5-diphosphonic Acid; 5,5-Diphosphono-2-iminopyrrolidine; PBTC precursor; Phosphonobutanetricarboxylic acid intermediate; HPAA derivative; 1H-Pyrrole-2,5-dione, 1-imino-3,3-bis(phosphonic acid); 2-Imino-1-pyrrolidine-5,5-diphosphonic Acid
EINECS	Contact for details

Quality Control

Our 2-Iminopyrrolidone-5,5-Diphosphonic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including assay, impurity profiling, and confirmation of identity, to ensure it meets precise specifications and consistent performance for industrial applications. A Certificate of Analysis (COA) detailing purity, physical characteristics, and test results is 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 3.0%
pH (1% aqueous solution)	2.0 - 4.0
Heavy Metals (as Pb)	≤ 20 ppm

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