Method: 
  • Density

Measuring the Percent Solids of a Slurry with the AccuPyc 1330 Pycnometer

The percent solids of a slurry can be calculated readily and easily from analyses performed with the
AccuPyc 1330 Pycnometer. To ensure accuracy, any pores of the solid must fill with liquid. Analyses
were performed on samples of varying percentages of solids using the following procedure.

  1. An instrument calibration was performed.
  2. A weighed amount of clay and a weighed amount of water were placed in the sample cup of the
    AccuPyc 1330, then stirred thoroughly.
  3. An analysis was performed on the sample prepared in step 2 using the following parameters, and the results were recorded.
    Purges = 3
    Runs = 3
    Run Precision = No
  4. Steps 1 through 3 were repeated seven times using different percentages of solids in the sample.
  5. The density of the dry solid was measured.
  6. The following equation was used to determine the percent solids of the slurry. Respective solid and
    liquid volumes and weights were both assumed to be additive in its derivation.
Percent solids equation

The results are shown in the following table.

Percent Solids Results Table

As shown in the table, the percent solids of a slurry can be determined reliably using AccuPyc 1330
density results. If you know the density of the solid and the density of the liquid, or measure them with
the AccuPyc 1330, you can calculate the percent solids of a slurry using the equation shown above.