Potassium permanganate alumina ball alumina ball manufacturers use strong oxidizing potassium permanganate oxidation of harmful gases in the air reductive decomposition, so as to achieve the purpose of purifying the air. Harmful gases hydrogen sulfide, sulfur dioxide, chlorine, formaldehyde, nitric oxide has a high removal efficiency. Potassium permanganate alumina ball Indicators: Indicators Unit technical requirements test results AL2O3% ≥80 83.2% violet or purple appearance Fe2O3% ≤0.05 0.02 Na2O% ≤0.45 0.03 Moisture% ≤20 16.5% ≥5 5.12 potassium permanganate Bulk density g / ml ≥ 0.8 0.9 m surface area / g ≥200 220 pore volume ml / g ml / g ≥0.40 0.42 crushing strength N / grain ≥70 1 URL: http: //www.koyhl.com