Description

Aluminum Calcium Hydroxide Phosphonate (Al2Ca2-8(Oh)8-20(Hpo3)) is a specialized inorganic compound with a complex layered structure, functioning as a synergistic source of aluminum, calcium, and phosphonate ions. This unique composition makes it a highly effective multifunctional additive, prized for its ability to impart flame retardancy, corrosion inhibition, and thermal stability in demanding industrial formulations. It is a critical material for manufacturers in the polymer, coatings, and construction chemical industries seeking to enhance product performance and meet stringent safety regulations. CAS NO 141728-04-3.

Application

• Flame Retardant & Smoke Suppressant in polyvinyl chloride (PVC), polyolefins, rubber, and thermoset resins for wires, cables, and construction materials.
• Corrosion Inhibiting Pigment in primer and topcoat formulations for industrial and marine protective coatings.
• Stabilizer and Cross-linking Agent in specialty polymer systems to improve thermal and mechanical properties.
• Additive for Intumescent Coatings and fireproofing materials, contributing to char formation and insulation.
• Component in Ceramic Glazes and Glass to modify melting points and enhance chemical durability.
• Precursor for Advanced Catalysts and adsorbents used in chemical synthesis and environmental remediation processes.

Basic Information

Product Name	Aluminum Calcium Hydroxide Phosphonate
CAS No.	141728-04-3
Molecular Formula	Al₂Ca₂(OH)₈(HPO₃)₂₀ (Representative)
Molecular Weight	Contact for details
Synonyms	Calcium Aluminum Hydroxy Phosphite; Aluminum Calcium Hydroxyphosphonate; Calcium Aluminium Hydroxide Phosphonate; ACHP; Flame Retardant ACHP; Corrosion Inhibitor ACHP; Layered Double Hydroxide Phosphonate; LDH-Phosphonate
EINECS	Contact for details

Quality Control

Our Aluminum Calcium Hydroxide Phosphonate is manufactured under a strict quality management system. Each batch is tested to ensure consistent composition, particle size distribution, and performance characteristics relevant to its target application, such as flame retardancy efficiency and thermal stability. A comprehensive Certificate of Analysis (COA) detailing assay, impurity levels, and physical specifications is provided with every shipment to guarantee traceability and compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive). Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture and carbon dioxide, which can affect product performance.

Specification

Item	Specification
Appearance	White to off-white fine powder
Identification (IR)	Conforms to standard
Assay (Al₂O₃ Content)	≥ 15.0 %
Assay (CaO Content)	≥ 10.0 %
Assay (P₂O₅ Content)	≥ 45.0 %
Loss on Drying (105°C)	≤ 5.0 %
Particle Size (D50)	5 - 15 µm
pH (5% Slurry)	6.0 - 8.0

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