💧 Measuring liquid density 🧪 Measuring solid density

pycnometry

9.9

Measuring a solid's true density by finding how much gas it pushes out in a sealed container

noun
/pɪkˈnɒmətri/

Specialized

: picnometría

The lab measured the ceramic's skeletal density using pycnometry with helium at controlled temperature.

Examples

For porous powders, pycnometry gives the true solid density by measuring displaced gas volume precisely.
The lab measured the ceramic's skeletal density using pycnometry with helium at controlled temperature.
They compared helium pycnometry results with mercury intrusion data to assess pore structure differences.
The lab used pycnometry to measure the density of the new material.
The process of pycnometry is essential for accurate density measurements.
For porous powders, pycnometry gives the true solid density by measuring displaced gas volume precisely.
They compared helium pycnometry results with mercury intrusion data to assess pore structure differences.

Surface Forms

pycnometry singular

pycnometries plural

Morphology

pycnometry = pycnometer (opaque) = pycn + metry

As in sense 1, the components are specialist combining forms; the link to density measurement is technical rather than transparent to general learners.

Etymology

Pycnometry comes from the Greek parts pycno- meaning 'dense' and -metry meaning 'measure', like the -metry in thermometer. So, pycnometry is used to find how 'dense' a solid really is, for example by measuring the volume of gas the solid forces out, which is why it is useful for porous materials.