Contains one vial each, with 10 capsules per vial of pH 4.0, pH 7.0, and pH 10.0. Each capsule is sufficient to make 100 mL buffer solution. Complete with one vial 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.
From our beginnings in 1927, Carolina Biological Supply Company has grown to become a leading supplier of science teaching materials for all levels of education. Today, from our headquarters in Burlington, North Carolina, we serve customers worldwide, including teachers, professors, homeschool educators, hobbyists, and professionals in health and science-related fields.
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Description
Contains one vial each, with 10 capsules per vial of pH 4.0, pH 7.0, and pH 10.0. Each capsule is sufficient to make 100 mL buffer solution. Complete with one vial 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.