936-560-0003 • ANIMAL SCIENCE PRODUCTS

Gel-Pac® TECHNICAL REPORT

PROJECT OBJECTIVE

To determine the effects of concentration and temperature on the viscosity of Gel-Pac®.

COMMERCIAL SUMMARY

Animal Science Products’ customers can benefit from having a well-defined gel viscosity profile, which is useful for fine-tuning gel spray formulas or sprayer design.  This report provides a matrix of gel viscosities, developed over a range of Gel-Pac® concentrations and water temperatures to assist in these design parameters.

EXPERIMENTAL PROCEDURE AND OBSERVATIONS

Three concentrations of Gel-Pac® in water were tested: 12.5 g/L, 25g/L, and 37.5g/L. These three concentrations were also added to three temperatures of water: 10°C, 24°C, and 38°C.

Materials

  • Lightning Mixer
  • 600mL beakers
  • Water bath
  • Brookfield RV Viscometer
  • Gel-Pac™
  • DI water

Procedure

  1. Heat or cool water to desired temperature using a hot/ cold water bath
  2. Start mixing with sufficient shear to maintain a vortex (900-1150rpm, depending on Gel-Pac® concentration)
  3. Start timer for two minutes, and continuously mix while slowly adding
    Gel-Pac® powder over the timespan. Mix for an additional 30 seconds once all powder is incorporated.
  4. Wait 5 minutes.
  5. Test viscosity using a Brookfield RV viscometer at 20rpm.

CONCLUSIONS

The data collected for each viscosity measurement is listed in Table 1. More easily visualized in Figure 1, the viscosity of the Gel-Pac® solution decreases as the temperature of the water it was added to increases. This is evident across the usage levels, but is a more drastic effect the higher the concentration of the solution.

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