Hydrion Buffer Chemvelope pH 6.40

6.40 Hydrion Buffer Chemvelopes produce 500ml of 6.40 pH Buffer Standard solution when dissolved in distilled water. Chemvelopes are made of a triple protective foil consisting of aluminum, polyethylene and paper which keeps the Hydrion Buffers dry and free-flowing.

Hydrion Buffer Chemvelopes are available in the following pH values:
[2.0][3.0][4.0][5.0][6.0][6.4][6.86][7.0][7.4][8.0][9.0][9.18][10.0][11.0][12.0]

Each carton contains five Chemvelopes.

Empty the contents of a pre-weighed Buffer Salt foil package into 500 ml. of de-ionized or distilled water.

Storage And Shelf Life:

When stored at room temperature in clean airtight bottles, prepared solutions will last for three weeks. When added to the solution, Hydrion Buffer Preservative will protect prepared solutions for up to three months.

Unprepared, packaged Hydrion Buffer Salts have a shelf life of five years.

All HYDRION BUFFER SALTS ARE DIRECTLY TRACEABLE TO NIST STANDARDS AND CERTIFIED TO ± 0.02 pH UNITS AT 25°C