SSZ-13 Specifications
Standard specification ranges for SSZ-13 base powder (CHA framework) supplied by ZeoCatalyst. The current handbook lists Na-form, NH4-form, and H-form. Metal-exchanged SCR catalysts require a separate technical review and agreed specification.
Standard Specifications (H-SSZ-13 Precursor)
| Parameter | Typical Range | Test Method |
|---|---|---|
| SiO2/Al2O3 (molar) | 10-80 | XRF |
| Standard catalogue bands | 12-14, 16-18, 20-22, 28-30, 30-80 | Product selection range |
| BET surface area | >600 m2/g | N2 adsorption |
| Pore size | 3.8 A (8-MR CHA) | Structure |
| Primary crystal size | 200-500 nm or 500-2000 nm | SEM |
| Cation forms | Na, NH4, H | Product specification |
| Na2O content | Confirm by selected ion form and COA | XRF |
| Powder particle size D50 | Confirm by grade and COA | Laser diffraction |
| XRD crystallinity | Confirm by grade and COA | XRD |
Metal-Exchanged Catalyst Requests
Cu-SSZ-13 and Fe-SSZ-13 are established SCR catalyst chemistries, but the base-powder specification above does not define finished-catalyst metal loading or performance. For a metal-exchanged request, define the target metal loading, exchange level, powder D50, activity protocol, hydrothermal-aging protocol, and batch-release tests before quotation.
Download the SSZ-13 TDS and request a sample of the agreed base-powder or separately qualified catalyst specification.
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