Description

Isopropylidenediphosphonic Acid is a high-purity organophosphorus compound with a unique molecular structure featuring a geminal bisphosphonate group. This structure is critical for its powerful chelating and scale inhibition properties, making it an effective agent for controlling metal ions and mineral deposits. It is essential for industries requiring advanced water treatment, corrosion inhibition, and as a key intermediate or additive in specialty chemical synthesis.

Application

• Industrial Water Treatment: Acts as a highly effective scale and corrosion inhibitor in cooling water systems, boilers, and reverse osmosis membranes.
• Oilfield Chemicals: Used in scale squeeze treatments and as a component in drilling fluids to prevent carbonate and sulfate scale formation in wells and production equipment.
• Detergent & Cleaning Formulations: Serves as a builder and chelating agent to sequester calcium and magnesium ions, enhancing cleaning efficiency in industrial and institutional cleaners.
• Pulp & Paper Industry: Employed as a chelant in bleaching processes and to control metal-ion catalyzed decomposition of hydrogen peroxide.
• Textile Processing: Used to sequester interfering metal ions during bleaching, dyeing, and finishing operations to improve process consistency and fabric quality.
• Chemical Synthesis: Functions as a versatile intermediate or ligand precursor for the synthesis of more complex phosphonate compounds, pharmaceuticals, and functional materials.
• Personal Care: Incorporated into formulations as a stabilizing agent for peroxides and to improve product clarity by chelating trace metals.

Basic Information

Product Name	Isopropylidenediphosphonic Acid
CAS No.	6145-32-0
Molecular Formula	C3H10O7P2
Molecular Weight	220.06 g/mol
Synonyms	1-Hydroxyethane-1,1-diphosphonic Acid; HEDP Acid; Etidronic Acid (USAN); (1-Hydroxyethylidene)bisphosphonic Acid; Dequest 2010; Phosphonic acid, (1-hydroxyethylidene)bis-; Ethane-1-hydroxy-1,1-diphosphonic acid; Acetodiphosphonic Acid
EINECS	228-179-4

Quality Control

Our Isopropylidenediphosphonic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets high-purity standards and consistent performance. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are provided with each shipment and are available upon request.

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) and should be kept in its original packaging to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	White crystalline powder or colorless viscous liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Active Content (as HEDP Acid)	≥ 60.0% (for aqueous solutions)
pH (1% aqueous solution)	~ 2.0
Chloride (as Cl)	≤ 0.01%
Iron (as Fe)	≤ 10 ppm
Water Content (Karl Fischer)	Contact for details

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