Order early for pre-holiday delivery. Flinn will be closed December 24th, 2025,
through January 4th, 2026, reopening Monday, January 5th, 2026.
Orders received after 10:30 AM Central Time on Tuesday, December 23rd, 2025,
will ship after we return.
Any change in the pH of a protein’s environment will cause observable changes in its solubility that reflect changes in the three-dimensional structure of the protein. With the pH and Protein Solubility: A Reversible Demonstration—ChemTopic™ Lab Activity, examine the effect of pH on the solubility and structure of casein, a milk protein. Available as part of the Biochemistry: The Molecules of Life—ChemTopic™ Labs digital collection. Click the Price link for digital collection pricing.