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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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The buffer in each capsule, when dissolved in 100 mL of distilled water, makes a precise buffer solution. Vial contains 10 capsules. Shelf life of capsules is printed on vial, usually 3 years or more. Prepared solution keeps 3 weeks. pH 7.0.