Enapter EL - Appendix II. Preparing the Electrolyte Solution

Version
Document Title
Release Date
00
EL – Owner’s Manual
2021-09-22
EL – Owner’s Manual – Rev.00 – September 2021 36
Appendix II. Preparing the electrolyte solution
Time required
5-10 minutes
Materials required
Safety Glasses
Nitrile Gloves
Clean 5L container
3.6 L of demineralised water (Conductivity < 20 µS/cm at 25⁰C)
Chemical scales
40 g of KOH (CAS-N°:1310-58-3)
For routine maintenance, new electrolyte solution must be prepared. Regular changing of the
electrolyte in the electrolyser helps to prolong the lifetime of the device. This solution can generally
be purchased locally. However, if you are struggling to source the materials involved, please contact
the Enapter customer support team.
Warning! Refer to the Material Safety Data Sheet (MSDS) of all chemicals
used, before handling them. All persons using, preparing, and filling the
electrolyte into the devices must be informed about any potential hazards
involved with their activities.
Attention: Mix the electrolyte solution in accordance with good industrial
hygiene and safety practice and wear appropriate Personal Protective
Equipment as specified by the relevant Material Safety Data Sheet (MSDS).
Avoid any contact with eyes and skin.
Attention: Carefully read the instructions below before beginning work.
Follow the instructions – if you have any questions, please contact the
Enapter customer support team.
Ensure all material used to store and contain your electrolyte solution is
chemically compatible with its contents.
1. Put on PPE. The minimum required equipment are safety goggles to protect from splashes
and nitrile gloves. Ensure your working area is clean to avoid chemical contamination and
potential exposure hazards.
2. Ensure the selected KOH resistant container is large enough to contain the solution entirely.
Verify the container is clean, and no debris is visible inside. If you are unsure – go to step 3,
otherwise, skip to step 4.
• If you are preparing the solution in advance – clearly mark and label the solution. Keep
out of the reach of children and untrained persons. Never store chemicals above eye-
level.
3. Thoroughly rinse the container with demineralised water, at a minimum three times. Before
continuing to step 4, perform another visual check to see if any other debris may be visible.
4. Fill 3.6 L of demineralised water with a conductivity below 20 µS/cm at 25⁰C into the KOH
resistant container.