Description

Octacalcium Phosphate is an important calcium phosphate compound with the chemical formula Ca8H2(PO4)6·5H2O. It serves as a key intermediate in the formation of hydroxyapatite, the primary mineral component of bones and teeth, making it highly valuable for biomaterial research and development. This compound is essential for manufacturers and researchers in the biomedical, dental, and advanced materials sectors seeking to develop bioactive coatings, bone graft substitutes, and controlled-release systems.

Application

• Biomedical Implants & Bone Graft Substitutes: As a precursor to hydroxyapatite, it is used to fabricate bioactive scaffolds and coatings that promote osseointegration.
• Dental Materials: Incorporated into cements, composites, and restorative materials to enhance bioactivity and remineralization.
• Controlled Drug Delivery: Utilized as a carrier matrix for the sustained release of therapeutic agents, particularly in orthopedic and dental applications.
• Biomimetic Material Research: Serves as a model compound for studying the nucleation and growth of biological apatite in vitro.
• Nutrient Supplement & Food Additive: Used as a calcium and phosphate source in specific fortified food products and nutritional supplements.
• Advanced Ceramics & Catalysts: Acts as a precursor material in the synthesis of specialized calcium phosphate ceramics and catalyst supports.

Basic Information

Product Name	Octacalcium Phosphate
CAS No.	13767-12-9
Molecular Formula	Ca8H2(PO4)6·5H2O
Molecular Weight	982.56 g/mol (Anhydrous basis: 892.52)
Synonyms	OCP; Octacalcium Bis(orthophosphate) Monohydrogen Phosphate Pentahydrate; Tetracalcium Hydrogen Phosphate Pentahydrate; Calcium Phosphate Hydrate (4:3); Dicalcium Phosphate Dihydrate-Tetracalcium Phosphate Composite; Tricalcium Phosphate Precursor; ACP Transformation Intermediate
EINECS	Contact for details

Quality Control

Our Octacalcium Phosphate is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing, including X-ray diffraction (XRD) for phase purity, inductively coupled plasma (ICP) for elemental composition, and loss on drying (LOD) for moisture content. Certificates of Analysis (COA) documenting purity, crystallinity, and key physical parameters are available for every shipment to ensure compliance with your specific research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after each use to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (XRD)	Conforms to Octacalcium Phosphate pattern
Assay (as Ca8H2(PO4)6·5H2O)	≥ 95.0 %
Calcium (Ca) Content	30.0 - 34.0 %
Phosphorus (P) Content	17.0 - 20.0 %
Loss on Drying (LOD)	≤ 10.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Particle Size (D50)	Contact for details

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