Description

Calcium Di[(Z)-9-Octadecenyl] Diphosphonate is a specialized organophosphorus compound where the phosphonate groups are coordinated to a calcium ion and functionalized with long-chain oleyl groups. This unique structure provides excellent metal-chelating and surface-active properties, making it a valuable functional additive. It is primarily utilized in industrial applications where scale inhibition, corrosion control, and dispersion are critical. Key industries that rely on this chemical include water treatment, oilfield chemicals, and advanced material synthesis.

Application

• Scale and Corrosion Inhibitor in industrial cooling water systems, boilers, and reverse osmosis membranes.
• Oilfield Chemical Additive for squeeze treatments to prevent mineral scale formation in downhole and production equipment.
• Dispersant and Stabilizer for inorganic particles in coatings, pigments, and ceramic slurries.
• Metal Sequestrant in detergent formulations and industrial cleaning processes.
• Functional Intermediate for the synthesis of more complex phosphonate-based polymers and surfactants.
• Additive in Personal Care products, such as oral care, for its calcium-chelating and anti-tartar properties.

Basic Information

Product Name	Calcium Di[(Z)-9-Octadecenyl] Diphosphonate
CAS No.	61392-16-3
Molecular Formula	C38H74CaO6P2
Molecular Weight	729.0 g/mol (approx.)
Synonyms	Calcium Dioleyl Diphosphonate; Calcium Bis(oleyl) Diphosphonate; Calcium Di(oleyl) Phosphonate; 9-Octadecenylphosphonic Acid, Calcium Salt; Oleylphosphonic Acid Calcium Salt; Phosphonic Acid, P,P'-(9-Octadecenyl) P,P'-Dioate, Calcium Salt; Calcium (Z)-9-Octadecene-1-phosphonate
EINECS	Contact for details

Quality Control

Our production of Calcium Di[(Z)-9-Octadecenyl] Diphosphonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is analyzed against comprehensive specifications, including assay, identity, and impurity profiles. A Certificate of Analysis (COA) detailing all test results is provided with every shipment. We support customer audits and can supply material tailored to meet specific regulatory or application requirements.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored in a cool, dry place at room temperature (15-25°C/59-77°F). Ensure the container is kept sealed when not in use to prevent absorption of atmospheric moisture, which may affect product performance and handling.

Specification

Item	Specification
Appearance	White to off-white powder or waxy solid
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 95.0 %
Calcium Content	5.0 - 6.5 %
Phosphorus Content	7.5 - 9.0 %
Loss on Drying	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm

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