Description

α-Amino-(4-Hydroxybenzylidene)Diphosphonate is a specialized organophosphorus compound featuring a unique amino-hydroxybenzylidene backbone. This structure makes it a highly effective chelating agent and scale inhibitor, crucial for managing metal ion interactions in complex industrial systems. It is primarily utilized by the water treatment, oilfield chemical, and detergent industries where control of calcium, magnesium, and other metal ions is essential for process efficiency and equipment longevity.

Application

• Industrial Water Treatment: Acts as a superior threshold inhibitor and dispersant for calcium carbonate and sulfate scales in cooling towers, boilers, and reverse osmosis systems.
• Oilfield Chemicals: Used in scale squeeze treatments and as a component in drilling and completion fluids to prevent mineral scale formation in downhole equipment and reservoirs.
• Detergent & Cleaning Formulations: Serves as a builder and chelant to sequester hardness ions, enhancing the cleaning efficiency of industrial and institutional detergents.
• Pulp & Paper Processing: Functions as a chelating agent in bleaching sequences and process water to control metal ions that can catalyze degradation or cause deposits.
• Textile Auxiliary: Employed in dyeing and finishing baths to complex with metal ions that may interfere with color uniformity and fabric quality.
• Personal Care Products: Incorporated in select formulations as a stabilizer and chelant to improve product shelf-life and performance.

Basic Information

Item	Details
Product Name	α-Amino-(4-Hydroxybenzylidene)Diphosphonate
CAS No.	73332-33-9
Molecular Formula	C7H9NO7P2
Molecular Weight	281.10 g/mol
Synonyms	AHBDP; (4-Hydroxybenzylideneamino)bis(methylenephosphonic acid); Amino(4-hydroxybenzylidene)diphosphonic acid; Phosphonic acid, P,P'-[ (4-hydroxybenzylidene)amino]di-; 1-Amino-1-(4-hydroxybenzylidene)diphosphonate; Dequest 2060S (related trade series); 4-Hydroxybenzylideneaminodimethylenediphosphonic acid
EINECS	Contact for details

Quality Control

Our production of α-Amino-(4-Hydroxybenzylidene)Diphosphonate adheres to stringent internal quality standards to ensure batch-to-batch consistency and performance reliability. While typically supplied in technical grade for industrial applications, specifications can be adjusted to meet specific customer requirements. A Certificate of Analysis (COA) detailing key parameters such as active content, pH, and impurity levels is provided with each shipment.

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 original container tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white powder or crystalline solid
Identification (IR)	Conforms to structure
Assay (Active Content)	≥ 90.0 %
pH (1% aqueous solution)	2.0 - 4.0
Water Content	≤ 5.0 %
Iron (Fe)	≤ 50 ppm
Chloride (Cl)	≤ 100 ppm

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