Description

1-Hydroxyethylphosphonic Acid is a versatile organophosphorus compound characterized by its phosphonic acid and hydroxyl functional groups. This structure makes it a valuable intermediate and active component in industrial processes requiring scale inhibition and metal chelation. It is essential for manufacturers in water treatment, textile processing, and personal care industries seeking effective and stable performance chemicals. Our supply ensures high purity and consistent quality for demanding commercial and research applications.

Application

• Scale and Corrosion Inhibitor in industrial cooling water systems and boilers.
• Chelating Agent in textile processing, pulp & paper production, and metal cleaning formulations.
• Stabilizer and Sequestering Agent in personal care products and cosmetic formulations.
• Intermediate for the synthesis of more complex phosphonate derivatives and pharmaceuticals.
• Detergent Builder in industrial and institutional cleaning products to enhance efficacy in hard water.
• Agricultural Chemical Intermediate used in the production of certain herbicides and plant growth regulators.

Basic Information

Product Name	1-Hydroxyethylphosphonic Acid
CAS No.	20188-02-7
Molecular Formula	C2H7O4P
Molecular Weight	126.05 g/mol
Synonyms	Hydroxyethylphosphonic Acid; (1-Hydroxyethyl)phosphonic Acid; HEPA; Ethanol, 1-phosphono-; 1-Phosphonoethanol; Acetophosphonic Acid; 2-Hydroxyethylphosphonic Acid; Phosphonoacetic acid, 2-hydroxy-
EINECS	243-597-7

Quality Control

Our 1-Hydroxyethylphosphonic Acid is manufactured under a strict quality management system. Each batch is analyzed to ensure it meets precise chemical and physical specifications. A comprehensive Certificate of Analysis (COA) documenting purity, assay, and impurity profiles 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). This material is hygroscopic (moisture-sensitive) and a strong acid/organic solvent; ensure containers are kept tightly sealed to exclude moisture and stored separately from bases and reactive materials.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 95.0 %
Water Content (KF)	≤ 2.0 %
pH (1% aqueous solution)	Contact for details
Density (20°C)	~1.4 g/cm³

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