Mercury Pycnometery Testing Vs. Mercury Porosimetry Testing: What’s the Difference?

In Mercury Porosimetry testing, the pressure is actually applied to force mercury into smaller and tinier pores. Hence, the pore size distribution can be anticipated by measuring applied pressure and the intrusion volume in the test using Mercury Porosimeter.

With its unlimited user-defined data-points, automated data collection, and reduction, Mercury Porosimeter is the ultimate porosimeter available in the market. This engineering instrument is automated, and versatile machinery used to regulate innumerable properties.

It basically allows mercury porosimetry testing under higher or lower temperatures to put on concrete operational conditions.

On the contrary,

For Mercury Pycnometery Testing, a mercury pycnometer is used to precisely gauge the extents of particles or solid samples with a volume of less than 0.1 cm>s3/sup. PMI’s Mercury Pycnometer is user-friendly, delivers accurate outcomes in less than 10 minutes, and accommodates an extensive range of samples.

The pycnometer consists of a glass flask with a close-fitting ground glass stopper with a vessel hole through it. This fine hole emits excess liquid after closing a top-filled pycnometer and allows obtaining a specified volume of measured and/or working fluid with high precision.

Mercury Porosimetry Testing vs. Mercury Pycnometery Testing: An Overview

Mercury porosimetry testing is an operational technique used to analyze porosity, pore size distribution, and volume to represent an inclusive range of powder and solid materials. 

The instrument, known as a porosimeter, effectively imposes a pressurized chamber to force mercury to intervene into the vacuums in a porous substrate. As pressure is placed, mercury fills the larger pores first. As pressure rises, the filling arises to tinier pores.

The inter-particle pores between the individual particles and the intra-particle pores within the particle can be categorized using this testing method.

Whereas Pycnometery Testing is usually carried out for comparing and measuring densities or explicit gravities of liquids and solids, including soil.

The powder’s pycnometer density offers the hypothetical density of the powder and can also deliver a hint of issues with internal voids within a powder.

For instance, if a drop of pycnometer density is detected either within particle size cuts or lot, the expected cause could be internal voids due to the fabrication technique.

Furthermore, the pycnometer density also provides a practical test to evaluate the powder for any gross changes from lot to lot.

Salient Features of Mercury Pycnometery Testing Equipment

•                     Mercury Test Substance

•                     Length of test around 10 minutes

•                     Wide range of adequate sample types and sizes

•                     Minimal maintenance required

•                     Bulk Density: Pore Structure Characteristics

Specifications of Mercury Pycnometery Testing Equipment

Sample Size	1 inch D x 1.5 inch H
Pore Size Range	0 – 15 microns
Determined Pressure	Vacuum – 1 Atm
Power Requirements	110/220VAC, 50/60 Hz
Reproducibility	More than 0.5%

Salient Features of Mercury Porosimetry Testing Equipment

·         Completely automatic and user- friendly

·         Windows-based software handles all control, statistics collection, measurement, and report generation

·         manual control

·         Software upgrades for more than 3 years

·         Limitless user-defined data points based on volume, pressure, or a combination

·         Comes with real-time graphical test display with up-to-date configuration

·         Computer equipped program depicts testing status and results during operation

·         Demonstrates both intrusion and extrusion curve

·         A broad range of adequate sample sizes and types

·         Requires minimal maintenance

·         Low level of mercury exposure

·         Sample transfers from low pressure to high-pressure stations not required

·         Non-destructive testing

Specifications of Mercury Porosimetry Testing Equipment

Pore Diameter Range	0.003 – 350 µm
Pressure Range vacuum	up to 60,000 psi
Pressure Transducers	low, medium, and high ranges
Sample Size	25mm diameter and 25mm long
Examination Ports	2 low- and high-pressure ports
Sample Volume	up to 10 cc or more
Pressurizing Fluid	mercury
Vacuum Pump	two-stage, direct-drive rotary oil pump
Permeability Range	1×10-4 – 5 Darcy
Pressurizing Gas	clean, dry, or compressed air any other non-flammable and non-corrosive gas
Weight	150 kg
Resolution	1 in 60,000
Accuracy	0.15% of reading
Power Requirements	230 VAC, 50Hz
Pressure Range	0 -200 psi

 

Final Words,

Mercury porosimetry testing is essentially used to examine porosity, pore size distribution, and volume. While Pycnometery Testing is carried out for measuring and comparing densities liquids and solids.

Both types of tests are conducted by Mercury Pycnometery Tester and Mercury Porosimetry Tester designed for such testing procedures.