Description

Methylenediphosphonic Acid is a versatile organophosphorus compound with a unique molecular structure featuring two phosphonic acid groups. This structure makes it an exceptionally effective chelating agent and scale inhibitor, crucial for managing metal ions in complex industrial systems. It is widely utilized in water treatment, oilfield applications, and as a key intermediate in the synthesis of specialized chemicals and pharmaceuticals.

Application

• Water Treatment: Acts as a highly effective scale and corrosion inhibitor in cooling towers, boilers, and reverse osmosis systems.
• Oilfield Chemicals: Used in scale squeeze treatments and as a component in drilling fluid additives to control mineral deposition.
• Industrial Cleaning: Serves as a chelant in formulations for metal cleaning and descaling to remove calcium, barium, and iron deposits.
• Chemical Synthesis: A valuable building block for producing more complex phosphonate derivatives, pharmaceuticals, and agrochemicals.
• Pulp & Paper Industry: Functions as a chelating agent in bleaching processes and as a dispersant.
• Textile Processing: Used to prevent metal-ion catalyzed degradation of peroxide bleaches and as a sequestrant in dyeing.
• Personal Care: Incorporated as a stabilizing agent in cosmetic and personal care formulations.

Basic Information

Product Name	Methylenediphosphonic Acid
CAS No.	1984-15-2
Molecular Formula	C1H8O6P2 or CH2(PO3H2)2
Molecular Weight	186.03 g/mol
Synonyms	MDPA; Methylene Diphosphonic Acid; (Phosphonomethyl)phosphonic Acid; 1,1-Diphosphonoethane; Ethane-1,1-diyldiphosphonic Acid; Methylene Bisphosphonic Acid; Medronic Acid; Dequest® 2010 (Trade Name)
EINECS	217-850-7

Quality Control

Our Methylenediphosphonic Acid is manufactured under a stringent quality management system. Every batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, identity, and performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided with each shipment to guarantee traceability and compliance.

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 when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0 %
Water Content (KF)	≤ 2.0 %
pH (1% Solution)	1.5 - 2.5
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.