Description

11-Hydroxyundecylphosphonic Acid, 95% is a high-purity, functionalized organophosphorus compound characterized by a long alkyl chain terminated with both a hydroxyl and a phosphonic acid group. This unique bifunctional structure makes it a versatile intermediate and surface-active agent, crucial for applications requiring specific metal chelation, surface modification, or controlled hydrophilicity. It is particularly valuable for researchers and manufacturers in the fields of specialty chemical synthesis, metal surface treatment, and advanced material science.

Application

• Metal Surface Treatment & Corrosion Inhibition: Acts as a key component in formulating advanced corrosion inhibitors and conversion coatings for ferrous and non-ferrous metals.
• Specialty Polymer & Resin Synthesis: Serves as a functional monomer or cross-linking agent for creating polymers with enhanced flame retardancy, adhesion, or metal-binding properties.
• Scale Inhibition in Water Treatment: Utilized in industrial water treatment formulations to prevent the deposition of calcium, magnesium, and other mineral scales.
• Chelating Agent & Metal Ion Sequestration: Employed in analytical chemistry, detergent formulations, and process chemistry for its ability to chelate divalent and trivalent metal ions.
• Pharmaceutical & Agrochemical Intermediates: Used in the synthesis of bioactive molecules and active ingredients due to its reactive phosphonic acid and hydroxyl functionalities.
• Nanomaterial & Composite Modification: Functionalizes the surface of nanoparticles, clays, or other fillers to improve dispersion and interfacial bonding within composite matrices.

Basic Information

Product Name	11-Hydroxyundecylphosphonic Acid, 95%
CAS No.	83905-98-0
Molecular Formula	C₁₁H₂₅O₄P
Molecular Weight	252.29 g/mol
Synonyms	11-Hydroxyundecylphosphonic Acid; 11-Hydroxy-1-undecylphosphonic Acid; ω-Hydroxyundecylphosphonic Acid; Undecane-1,11-diol, 1-phosphonic acid derivative; Hydroxyundecylphosphonate; Phosphonic acid, P-(11-hydroxyundecyl)-; Long-chain hydroxyphosphonic acid
EINECS	Contact for details

Quality Control

Our 11-Hydroxyundecylphosphonic Acid, 95% is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including chromatographic purity assays and structural confirmation, to ensure it meets the declared specifications and is free from significant impurities. A comprehensive Certificate of Analysis (COA) detailing the results for identity, assay, and related substances is provided with every shipment to guarantee traceability and consistency for your R&D and production needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep the container tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to minimize moisture absorption and potential degradation.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 2.0%
Melting Point	Contact for details

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