Description

Poly(Oxy-1,2-Ethanediyl), .Alpha.-Phosphono-.Omega.-Hydroxy- is a specialized organophosphorus compound featuring a polyether backbone terminated with phosphonic acid and hydroxyl functional groups. This unique structure provides excellent chelating, dispersing, and surface-active properties, making it a critical performance additive in demanding industrial processes. It is essential for manufacturers in sectors such as water treatment, textile processing, and detergent formulation who require high-performance scale inhibition and metal ion control.

Application

• Water Treatment Chemicals: Acts as a highly effective scale and corrosion inhibitor in cooling water, boiler water, and reverse osmosis systems, particularly for controlling calcium carbonate and phosphate scales.
• Detergent & Cleaning Formulations: Serves as a superior builder and sequestrant in industrial and institutional cleaning products, enhancing cleaning power by inactivating water hardness ions (Ca²⁺, Mg²⁺).
• Textile Auxiliaries: Used as a dispersing and chelating agent in dyeing and printing processes to improve color uniformity and prevent metal-ion-induced shade variations.
• Pulp & Paper Processing: Functions as a peroxide stabilizer and dispersant in pulp bleaching stages, improving efficiency and protecting equipment from scale deposition.
• Oilfield Chemicals: Employed in scale inhibitor formulations for squeeze treatments in oil and gas production to prevent mineral scale formation in downhole and surface equipment.
• Industrial Cleaners: A key component in acid-based and alkaline cleaner formulations for metal surface treatment, providing sequestration of metal ions to prevent redeposition and spotting.
• Personal Care: Can be used as a chelating agent in certain cosmetic and personal care formulations to stabilize products by binding trace metal contaminants.

Basic Information

Item	Details
Product Name	Poly(Oxy-1,2-Ethanediyl), .Alpha.-Phosphono-.Omega.-Hydroxy-
CAS No.	25852-91-9
Molecular Formula	C2nH4n+5On+3P (n represents the number of oxyethylene units)
Molecular Weight	Variable (dependent on polymer chain length, n)
Synonyms	Phosphonated poly(ethylene glycol); PEG-phosphonic acid; Hydroxy-terminated phosphonated PEG; Polyethylene glycol monophosphonate; α-Phosphono-ω-hydroxy-poly(oxyethylene); Phosphono-PEG-OH; Poly(oxyethylene) phosphonic acid; Oligo(ethylene glycol) phosphonic acid
EINECS	Contact for details

Quality Control

Our production of Poly(Oxy-1,2-Ethanediyl), .Alpha.-Phosphono-.Omega.-Hydroxy- adheres to a strict quality management system. Every batch undergoes rigorous analytical testing to ensure consistency, purity, and performance. Key parameters such as active content, pH, viscosity, and phosphorous content are verified. Certificates of Analysis (COA) documenting these results are available upon request to support your quality assurance and regulatory compliance needs.

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 when not in use to prevent absorption of atmospheric moisture, which can affect product quality and performance.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms to structure
Active Content (Assay)	≥ 95.0 %
Phosphorus Content	Contact for details
pH (5% aqueous solution)	2.0 - 4.0
Water Content	≤ 1.0 %
Viscosity (25°C)	Contact for details
Average Molecular Weight (n)	Available in various grades (e.g., n=9, n=23)

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