Description

When emptied into 100ml of distilled water, the free flowing powder dissolves, creating an accurate colour coded buffer solution at pH 4.00. 
Additionally, these buffers contain a pH indicating dye to prevent mix-ups, and a mould inhibitor to ensure a lasting, stable solution.

Each vial contains 10 capsules.

Product Directions:

Open one Hydrion pH Buffer Capsule and empty the contents into 100 ml. of distilled water (or de-ionized water) & stir.