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Buffer, Chemvelope, pH 7, Color Coded, Laboratory Grade, Carton of 5


Product: (in stock)


Five envelopes of pH 7. 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.


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