Product Overview
GAC-P S is the acid-washed variant of our high-iodine coal-based granular carbon, engineered for applications where pH stability and low extractable content are essential. Manufactured from premium bituminous coal through carbonization, steam activation, and extended acid washing, it achieves a pH of 5–8 while maintaining an iodine adsorption value exceeding 950 mg/g and methylene blue above 160 mg/g.
Available in GAC-P 830S and GAC-P 1240S configurations, this grade serves ultra-pure water, beverage processing, and point-of-entry systems where the alkaline pH of standard coal carbons would require downstream correction. The acid-washing protocol removes soluble ash and minerals, reducing conductivity spikes and protecting sensitive equipment.
Specifications
| Technical Specifications | GAC-P 830S | GAC-P 1240S | Unit |
|---|---|---|---|
| Iodine Adsorption Value | >950 | >950 | mg/g |
| Moisture Content | <10 | <10 | % -wt |
| Methylene Blue Adsorption Value | >160 | >160 | mg/g |
| pH | 5-8 | 5-8 | - |
| Average Particle Size | 1.4-1.7 | 1.2-1.4 | mm |
| Crush Strength | >90 | >90 | % |
| Specific Surface Area | >900 | >900 | m²/g |
| Particle Size >8 Mesh (1.70 mm) | <10 | - | % -wt |
| Particle Size >12 Mesh (1.70 mm) | - | <5 | % -wt |
| Particle Size <30 Mesh (0.6 mm) | <5 | - | % -wt |
| Particle Size <40 Mesh (0.43 mm) | - | <5 | % -wt |
Key Application Areas
- Ultra-Pure Water Polishing — Treats deionized water in electronics and power generation where neutral pH and low leachable content prevent process contamination.
- Beverage & Brewery Water — Purifies ingredient water for beer, soft drinks, and bottled water, maintaining stable water chemistry that supports consistent product taste and clarity.
- Point-of-Entry (POE) Drinking Water — Installed at building entry to remove chlorine and organics while delivering pH-neutral effluent that protects residential plumbing and appliances.
Key Advantages
- Acid-Washed pH Neutrality: pH 5–8 eliminates alkaline drift common in standard coal carbons, reducing the need for post-treatment pH adjustment in sensitive systems.
- Dual Performance Indicators: Iodine >950 mg/g ensures rapid small-molecule adsorption; methylene blue >160 mg/g confirms capacity for larger organics and color precursors.
- Low Extractable Content: Acid washing reduces soluble ash and metal ions, minimizing downstream contamination risks in ultra-pure and food-grade loops.
- Dual Mesh Flexibility: 830S (1.4–1.7 mm) optimizes high-flow POE systems; 1240S (1.2–1.4 mm) enhances contact efficiency for ultra-pure water polishing.
Available particle size
- 8×30 Items ( 0.6 ~ 2.36 mm)
- 12×40 Items ( 0.43 ~ 1.7 mm)
Packaging
- The 20kg / Package
- The 500 kg / Package
