Notes on media & materials.

Short, practical articles — each one answers a question our customers actually ask. If your question isn't here, email us; it may become the next article.

All Articles · 244 Molecular Sieves · 99 Activated Alumina · 30 Catalyst Carriers · 22 Alumina & ATH · 63 Guides & Procurement · 30

Alumina & ATH

Calcined Alumina for Sapphire Substrate Lapping and Polishing — Particle Size Selection | AluminaWorld

Calcined alumina (alpha-Al2O3) is the standard polishing abrasive for sapphire substrate (LED, watch face, semiconductor wafer) lapping and polishing.…

Notes on media & materials.

Calcined Alumina for Sapphire Substrate Lapping and Polishing — Particle Size Selection | AluminaWorld

CMP Slurry Settling: Pseudo-Boehmite vs Fumed Alumina for Sub-0.5 µm Polishing

Battery Cell Dry Room Oxygen Sensor Calibration: How a Molecular Sieve Dryer Failure Silently Raises Your O2 Reading Drift

Ammonia Slip from Blue Hydrogen: How Activated Alumina Polishing Stage Reduces NH3 from 200 ppm to <10 ppm

Alumina Powder for Thermal Interface Materials (TIM): Bimodal Packing to Reach 6 W/mK - AluminaWorld

Alumina Ceramic Ball for RTO (Regenerative Thermal Oxidizer) — Heat Storage Media Selection | AluminaWorld

Alumina Ceramic Ball as Catalyst Inert Support Packing — Loading and Bed Design | AluminaWorld

Adsorber Vessel Corrosion Under Desiccant Beds: Chloride Pitting, Stress Corrosion Cracking, and Liner Selection (RB vs FBE vs PTFE vs Alloy Overlay) - AluminaWorld

Activated Alumina Ball Attrition in Pneumatic Conveying Lines: How to Specify 5 N/mm Crush Strength Minimum

ATH vs Boron Nitride (BN) for Thermal Management: Dk, Df, and CTE Comparison

ATH Flame Retardant for TPU (Thermoplastic Polyurethane) — Loading Level and Mechanical Properties | AluminaWorld

13X vs 5A Molecular Sieve for Medical Air Drying: Dew Point, CO2 Control, and Safe Bed Design

Molecular Sieve 5A for Hydrogen PSA: 99.99% Purity, Tail Gas Recycle, and Bed Design

ATH for Phenolic Resin (PF) in Brake Pads: Why Loading > 60% Wins Fade Tests (SAE J661 Data Inside) | Aluminaworld

Catalyst Carrier Sulfur Tolerance: How &gamma;-Al2O3 vs &eta;-Al2O3 vs &alpha;-Al2O3 Perform in HDS Service

Molecular Sieve 4A for CNG Compressor Station and NGV Refueling Drying: ISO 15403 and GB 18047 Compliance Engineering Guide | Aluminaworld

Molecular Sieve 4A for Natural Gas Pipeline Dew Point Control: Joule-Thomson Cooling, Hydrate Prevention, and ISO 18453 Compliance

Molecular Sieve 5A for n-Paraffin / iso-Paraffin Separation (MOLSIV): UOP Molex Process Engineering Data | Aluminaworld

Molecular Sieve 13X for Cryogenic Air Separation Pre-Purification: How CO2, H2O, and C2+ Hydrocarbons Are Removed Before the Cold Box

Activated Alumina in Sulfuric Acid and Oleum Plants: Compatibility Boundaries, Dry-Air Duty, and Safer Adsorbent Selection

13X Molecular Sieve for Industrial Air Separation Unit (ASU) Pre-Purification: CO2, H2O, C2+ Removal Before Cold Box

Molecular Sieve Storage and Handling: 7 Mistakes That Cost You 30% Capacity

Molecular Sieve 4A vs 3A for Polyol and Polyurethane Drying: Viscosity Impact, Breakthrough Time, and Reactivation Cost

PSA Nitrogen Generation: CMS vs 5A Zeolite — Mass Balance, Purity, and TCO

Catalyst Carrier Sulfur Tolerance: How γ-Al2O3 vs η-Al2O3 vs α-Al2O3 Perform in HDS Service