Product Overview
PSD-A1 S is the acid-washed variant of our enhanced coconut shell carbon, combining the superior adsorption capacity of PSD-A1 with the process stability of acid-washed purification. With an iodine adsorption value exceeding 1100 mg/g, surface area above 1000 m²/g, and ash reduced below 3%, this grade targets the most sensitive water treatment applications—including POU drinking water filters, semiconductor rinse water, and electroplating bath maintenance.
The acid-wash step neutralizes surface alkalinity to a pH of 5–8, preventing pH drift in closed-loop systems and protecting delicate downstream equipment. Available in 12×40 mesh and other standard sizes, PSD-A1 S is certified for NSF 61, drinking water, and food production, ensuring compliance across regulated industries.
Specifications
| Technical Specifications | PSD-A1 S | Unit |
|---|---|---|
| Iodine Adsorption Value | >1100 | mg/g |
| Moisture Content | <10 | % -wt |
| Ash Content | <3 | % -wt |
| Bulk Density | 430~530 | kg/m³ |
| pH | 5-8 | - |
| Crush Strength | >95 | % |
| Specific Surface Area | >1000 | m²/g |
| Particle Size >12 Mesh (1.70 mm) | <10 | % -wt |
| Particle Size <40 Mesh (0.43 mm) | <5 | % -wt |
Key Application Areas
- Point-of-Use (POU) Drinking Water Filters — Delivers high-capacity chlorine and organic removal in undersink and countertop units while maintaining neutral pH effluent for consumer safety and taste.
- Semiconductor Ultra-Pure Water — Polishes ultra-pure water for wafer cleaning and wet processing, where trace metals and pH excursions are strictly controlled to prevent yield loss.
- Electroplating & Surface Finishing — Circulates in plating bath loops to adsorb organic brightener breakdown products without altering bath pH or introducing metallic contaminants that affect deposit quality.
- Food & Beverage Ingredient Water — Provides the highest purity tier for premium bottled water, craft brewing, and pharmaceutical ingredient preparation where acid-washed purity meets direct-contact standards.
Key Advantages
- Maximum Capacity + Maximum Purity: The only grade in the PSD-A series combining >1100 mg/g iodine with <3% ash and pH-neutral chemistry, eliminating trade-offs between capacity and purity.
- Electronics-Grade Compatibility: Acid washing removes leachable ions that could cause conductivity spikes in UPW and plating loops, supporting yield-sensitive manufacturing.
- POU-Optimized Chemistry: Neutral pH prevents alkaline "spikes" common in standard carbons during initial flush, improving consumer experience in residential filters.
- Proven Supply Chain: Manufactured from the same traceable coconut shell feedstock as all PSD-A grades, with batch certificates confirming iodine, ash, and pH compliance.
Available particle size
- 8×20 Items ( 0.85 ~ 2.36 mm)
- 8×30 Items ( 0.6 ~ 2.36 mm)
- 12×30 Items ( 0.6 ~ 1.7 mm)
- 20×40 Items ( 0.43 ~ 0.85 mm)
- 30×60 Items ( 0.25 ~ 0.6 mm)
- 80 ~ 200 Items ( 0.075 ~ 0.18 mm)
- Other customized particle sizes
Packaging
- The 25kg / Package
- The 500 kg / Package
