ZSM-5 Zeolite TDS
This technical data sheet covers the current standard range for ZSM-5 zeolite powder in H-form, NH₄-form, and Na-form. The standard catalogue covers SiO₂/Al₂O₃ 20-1000. A legacy high-silica product sheet also supports a 1500+ specialty grade; availability should be confirmed before sample or quotation.
Typical Specifications
| Parameter | Typical Range | Test Method |
|---|---|---|
| SiO₂/Al₂O₃ (molar) | 20-1000 standard; 1500+ specialty | XRF or ICP-OES |
| BET surface area | ≥300 m²/g standard; ≥350 m²/g for documented high-silica grades | N₂ adsorption, BET method |
| Primary crystal size | 200-1000 nm (standard catalogue) | SEM |
| Pore opening | 5.3 × 5.6 Å | 10-MR MFI channels |
| Pore volume (micropore) | 0.15-0.20 cm³/g | t-plot method |
| Na₂O content | <0.1 wt% for documented high-silica grades | XRF or AAS |
| Powder particle size (D50) | ≤15 μm for documented high-silica grades; confirm other grades by COA | Laser diffraction |
| Loss on Ignition | ≤5 wt% | 800 °C, 2h |
| XRD crystallinity | ≥90% | vs MFI reference standard |
| Framework | MFI | XRD confirmation |
Available Forms
- H-ZSM-5 powder (acidic, ready to use)
- NH₄-ZSM-5 powder (calcines to H-form at 500-550 °C)
- Na-ZSM-5 powder (ion-exchange precursor)
- Shaped or formulated ZSM-5 products subject to technical confirmation
Certificate of Analysis
The batch COA records the agreed release parameters, which may include SiO₂/Al₂O₃ ratio, BET surface area, Na₂O content, powder particle-size distribution, LOI, and XRD crystallinity. Primary crystal size and powder D50 describe different length scales and should not be used interchangeably.
To request a sample with COA, specify your target Si/Al ratio, ionic form, particle size, and application.
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