Buffer, Chemvelope, pH 2, Laboratory Grade, Carton of 5

Product Code: 849330

Description

Five envelopes of pH 2. Each envelope makes 500 mL of solution. Includes one vial of preservative solution.

Powders keep 5 years; prepared solutions keep 3 weeks (or 3 months with preservative added).

Preservative contains a pH indicator and colors each buffer solution for easy identification.