Description

3-Phosphonopropionic Acid is a versatile organophosphorus compound characterized by its carboxylic acid and phosphonic acid functional groups. This bifunctional structure makes it a valuable intermediate and additive, particularly as a scale and corrosion inhibitor in industrial water treatment systems. It is essential for manufacturers and formulators in the chemical, water treatment, and detergent industries seeking effective and stable performance chemicals.

Application

• Industrial Water Treatment: A key component in formulations for scale inhibition (e.g., calcium carbonate, calcium sulfate) and corrosion control in cooling water, boiler water, and reverse osmosis systems.
• Detergent & Cleaning Agents: Acts as a builder and chelating agent to sequester hardness ions (Ca²⁺, Mg²⁺), enhancing the cleaning efficiency of industrial and institutional detergents.
• Chemical Synthesis: Serves as a crucial bifunctional building block for synthesizing more complex phosphonate compounds, pharmaceuticals, and agrochemical intermediates.
• Personal Care Products: Used in certain cosmetic and personal care formulations for its sequestering and stabilizing properties.
• Textile & Pulp Processing: Employed as a stabilizer and dispersant to prevent scale deposition and improve process efficiency.
• Metal Surface Treatment: Functions in metal finishing and plating baths to control precipitation and improve surface quality.

Basic Information

Product Name	3-Phosphonopropionic Acid
CAS No.	5962-42-5
Molecular Formula	C₃H₇O₅P
Molecular Weight	154.06 g/mol
Synonyms	3-Phosphonopropanoic Acid; 2-Carboxyethylphosphonic Acid; Phosphonopropionic Acid; CEPA; (3-Phosphonopropyl) Acid; Propanoic acid, 3-phosphono-; NSC 26231; 3-PPA
EINECS	227-755-3

Quality Control

Our 3-Phosphonopropionic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. A comprehensive Certificate of Analysis (COA) documenting these results is provided with each shipment to guarantee consistency and traceability for our global B2B clients.

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); ensure the container is kept tightly sealed to prevent absorption of atmospheric moisture, which may affect quality.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
pH (1% 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.