Product Overview
Ash is the hidden contaminant in activated carbon. Inorganic residue can leach metals, elevate conductivity, and introduce particulates that ruin sensitive processes. PL-390 redefines purity limits with total ash held below 390 parts per million—among the lowest available in columnar form. The "PL" designation signals our PureLine premium purity platform; "390" is the hard ash ceiling.
Reaching this threshold demands strict feedstock selection, extended acid-washing sequences, and batch-level quality gates that reject any lot exceeding the limit. The columnar extrusion preserves structural integrity through backwashing and pneumatic handling, delivering spherical-grade purity in a pelletized form factor engineered for fixed-bed vessels.
Specifications
| Technical Specifications | PL-390 | PC-490 | Unit |
| CTC price | > 90 | > 90 | % -wt |
| Moisture content | < 5 | < 5 | % -wt |
| Column carbon diameter | 3 | 4 | mm |
| Stacking density | 330 ~ 410 | 330 ~ 410 | kg/m³ |
| Intensity | > 90 | > 90 | % |
| Size size> 8 order (2.36 mm) | > 95 | - | %-wt |
| Particle size> 6 order (3.35 mm) | - | > 95 | %-wt |
Key application areas
- Semiconductor ultra-pure water — final polishing before wafer contact
- Pharmaceutical water for injection (WFI) — compliance with USP/EP standards
- Power plant steam condensate — protecting turbine blades from deposit buildup
- Laboratory ultrapure water — HPLC, IC, and trace analysis applications
- Battery electrolyte purification — lithium-ion and flow battery systems
Purity Validation
Each production lot is verified through:
- Total ash determination by combustion analysis
- Individual metal quantification by ICP-MS (Na, K, Ca, Mg, Fe, Al, Si, etc.)
- Extractable conductivity testing
- Particle count by laser light scattering
