Mercury Porosimetry
ON-DEMAND RE-ANALYSIS WILL NOT BE PERFORMED IN MERCURY POROSIMETER ANALYSES.
Mercury porosimetry operate on the physical principle that an inert, non-wetting liquid cannot enter small pores unless adequate pressure is applied. The relationship between the applied pressure and the pore diameter is obtained by the Washburn equation:
D=(-4γ cosθ)/P
where P is the applied pressure, D is the pore diameter, γ is the surface tension of the mercury (480 dyne/cm), and θ is the contact angle between the mercury and the pore wall (usually 140°). Mercury intrusion data is used to generate pore size/volume distributions.
Instrument: Quantachrome Corporation, Poremaster 60
The porosimeter has two sample chambers, low pressure (up to 50psi) and high pressure (up to 55,000 psi). It is possible to use penetrometers (sample cells) of various lengths and diameters for measurements. Pore diameters between 200 micrometers and 0.004 micrometers can be measured in the device.
The porosimeter is computer controlled. Intrusion and extrusion data can be obtained in measurements.
Specifications
Transducer Pressure Range Dimension
| Transducer Pressure Range |
Dimension |
| 0 - 50 psia | 200 - 4 µm diameter |
| 0 - 55,000 psia | 10.66 - 0.004 µm diameter |
Sample Requirements
Measurements can be made on granules, pellets and solid particles. (Powder samples should be delivered in pellet form for measurement. The diameter of the largest particle should not be more than 8 mm).
Applications
- Determination of porosity,
Option 1: Low pressure analysis for samples with pores between 4 and 200 µm
Option 2: High pressure analysis for samples with pores from 4 nm to 10 µm
- Pore size distribution,
Option 1: Low pressure analysis for samples with pores between 4 and 200 µm
Option 2: High pressure analysis for samples with pores from 4 nm to 10 µm
- Surface area distribution,
- Particle size distribution,
- Bulk density
Laboratories
Laboratories
ON-DEMAND RE-ANALYSIS WILL NOT BE PERFORMED IN MERCURY POROSIMETER ANALYSES.
Mercury porosimetry operate on the physical principle that an inert, non-wetting liquid cannot enter small pores unless adequate pressure is applied. The relationship between the applied pressure and the pore diameter is obtained by the Washburn equation:
D=(-4γ cosθ)/P
where P is the applied pressure, D is the pore diameter, γ is the surface tension of the mercury (480 dyne/cm), and θ is the contact angle between the mercury and the pore wall (usually 140°). Mercury intrusion data is used to generate pore size/volume distributions.
Instrument: Quantachrome Corporation, Poremaster 60
The porosimeter has two sample chambers, low pressure (up to 50psi) and high pressure (up to 55,000 psi). It is possible to use penetrometers (sample cells) of various lengths and diameters for measurements. Pore diameters between 200 micrometers and 0.004 micrometers can be measured in the device.
The porosimeter is computer controlled. Intrusion and extrusion data can be obtained in measurements.
Specifications
Transducer Pressure Range Dimension
| Transducer Pressure Range |
Dimension |
| 0 - 50 psia | 200 - 4 µm diameter |
| 0 - 55,000 psia | 10.66 - 0.004 µm diameter |
Sample Requirements
Measurements can be made on granules, pellets and solid particles. (Powder samples should be delivered in pellet form for measurement. The diameter of the largest particle should not be more than 8 mm).
Applications
- Determination of porosity,
Option 1: Low pressure analysis for samples with pores between 4 and 200 µm
Option 2: High pressure analysis for samples with pores from 4 nm to 10 µm
- Pore size distribution,
Option 1: Low pressure analysis for samples with pores between 4 and 200 µm
Option 2: High pressure analysis for samples with pores from 4 nm to 10 µm
- Surface area distribution,
- Particle size distribution,
- Bulk density