HS-400
Vapor Phase, Potassium Permanganate Activated Alumina
Hydrosil’s HS-400 is a spherical activated alumina that is impregnated with no less than 4.0% weight potassium permanganate (KMnO4). The media shall have 2.0 pounds of potassium permanganate per cubic foot. The HS-400 is found in exhaust systems, air dryers, and general HVAC applications.
What’s the Difference Between HS-600 and HS-400?
HS-400 is activated alumina impregnated media and HS-600 is zeolite impregnated media. Both medias are impregnated with potassium permanganate (KMnO4) which oxidizes acid gases and odors. The HS-600 is a harder material than the HS-400; Therefore, the HS-600 will result in insignificant dusting. Depending on the application, Hydrosil will suggest either the HS-600 or HS-400.
Pressure Drop
typical physical properties
| Property: | Value: |
| Apparent Density, lb/ft 3 | 49-51 |
| Potassium Permanganate, % wt. range | 4.0-6.0 |
| U.S. Standard Sieve Size (Mesh Size) | 3 x 6, 14 x 28, 20 x 50 |
| Moisture Content, % wt. | 10-15 |
| Crush Strength, kg min. | 2.3 |
| Hydrogen Sulfide Capacity, g/cc | 0.08 |