Description
Key Properties & Advantages
MIL-53(Al) (KAR-F46)’s performance is defined by its flexible framework and aluminum-based chemistry:
Flexible Porous Structure: Exhibits a unique “breathing” behavior—pressure and temperature changes induce reversible pore expansion/contraction, dynamically tuning selectivity for gas adsorption. This adaptability is critical for targeted separation processes.
High Surface Area (≥1000 m²/g): Maximizes active sites for gas interaction, enhancing adsorption capacity in CO₂ capture and gas separation applications.
Aluminum-Based Stability & Safety:
Chemical Stability: Maintains structural integrity in aqueous solutions (pH 3–11) and organic solvents, ensuring durability in industrial environments.
Thermal Resilience: Withstands temperatures up to 300°C (inert atmosphere), supporting high-temperature adsorption-desorption cycles.
Low Toxicity: Aluminum’s inherent biocompatibility makes it suitable for applications requiring minimal environmental impact, unlike heavy metal-based MOFs.
Uniform Particle Size (1–3 μm): Ensures consistent packing in columns, efficient mass transport, and reliable performance in scalable systems (e.g., gas separation modules).
Core Applications
CO₂ Capture & Gas Separation
MIL-53(Al)’s flexible structure makes it a standout for carbon capture and gas separation:
CO₂ Selective Adsorption: Its “breathing” behavior enhances selectivity for CO₂ over N₂, CH₄, and other gases, enabling efficient capture from flue gases, biogas, and ambient air.
Dynamic Gas Separation: Pressure/temperature adjustments allow tailored separation of gas mixtures (e.g., CO₂/CH₄, C₂H₄/C₂H₆), adapting to varying industrial stream compositions without reconfiguring equipment.
Catalytic Sensors & Harmful Gas Detection
Toxic Gas Sensing: Demonstrates high sensitivity to harmful gases like isobutyraldehyde (a volatile organic compound, VOC), making it a promising material for catalytic sensors in industrial safety and air quality monitoring.
Sensor Stability: Aluminum’s low reactivity ensures long-term sensor performance, with minimal drift in detection accuracy over time.
Technical Specifications
Parameter Details
CAS Number 654061-20-8
Product Name MIL-53(Al)
Model KAR-F46
Metal Node Aluminum (Al³⁺)
Particle Size 1–3 μm
BET Surface Area ≥1000 m²/g
Pore Size 0.4–0.8 nm (flexible, “breathing” pores)
Thermal Stability Up to 300°C (inert atmosphere)
pH Stability 3–11 (aqueous solutions)
Quality Assurance
Each batch of KAR-F46 undergoes rigorous testing to ensure consistency:
X-ray Diffraction (XRD): Confirms “breathing” behavior and structural integrity.
Nitrogen Adsorption-Desorption: Verifies surface area (≥1000 m²/g) and pore size distribution.
Gas Adsorption Testing: Validates CO₂ selectivity and responsiveness to pressure/temperature changes.
Particle Size Analysis: Ensures uniformity (1–3 μm) via laser diffraction.
A certificate of analysis (CoA) is provided with each order, documenting batch-specific properties.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).

