The Set :
-
A
complete
laboratory equipment
for chlorate production, ready
to use, based
on a pair of two electrodes bolted in a PTFE lid
with the electrical and chemicals necessary for
starting.
Specification :
-
Size of
electrodes :
120x50x1.4mm
(working
area) +
30mm connector as pictures
-
Anode : Ru-Ir coating on Titanium substrate provides excellent
resistance to chemicals, and oxidation.
- The Ru-Ir coating is
about 12g/m² enable a lifespan of about 1 years at 200mA/Cm².
-
The lifetime is very high, but depends on the use conditions.
-
Max current recommanded is 200mA/Cm2.
- The shape allow 1A/Cm
immersed who give about 12A for this model (lower current = longer
lifetime).
- Recommended working temperature : 60°C (can work
until 100°C but lifespan is shorter).
- This anode allow to
electrolyze from chloride to chlorate in one step.
- Durable and
reliable laboratory equipment.
- PTFE is the only way to get a
perfect anti-corrosion seal, thus, this lid is the best way for
electrolysis cell.
- A 40mm fan has been
added to reach 10A (up to
12A) at room temperature.
- All
the electronic equipment has been tested and calibrated at 5V to
protect the anode and 10 amperes, allow to produce (90 to 150g of
KClO3 (potassium chlorate) by 24H (138g/day for 75 % of yield).
Tutorial
video : https://www.youtube.com/watch?v=0aBQqFC_hzU
Package included:
- 1 paire of
Ti cathode + Anode (Ru-Ir two side coating on Titanium substrate :
the darkest one), bolted in a PTFE lid.
- Lid : 100mm x
100mm x 5mm square.
- 1 constant current regulator already
calibrate (no need to modify the selection)
for 10A total output current (can work until 12A) thanks to the
active cooling airfan.(You are responsible of the heat of the module.
Under 60/70°C at heatsink is OK for long fifetime).
- 1Pcs 230V
to 24V 3A EU plug transformer (already tested).
- 100g of
potassium persulfate to improve the brin’s PH stability, yield and
anode lifetime.
- 15mL dropper of Methylene Blue in solution
(1%)
- PH paper (80 strips)
- 80Cm of 1,5mm² double cable
already bolted to the electrodes.
-
Spacer (between electrodes)
→ The glass jar is not
included. You need to found one, (easily), in glass or
pyrex, with an opening
between 58
to 98mm.
The best volume for 10A
is around 600/1000mL
to keep the temperature at good level.
Use :
1 – Be careful of
the place : hydrogen gas, chlorine and oxygen are release by the
cell.
Never let the cell run in a house, but in appropriate
laboratory with gas evacuation or outside, and never near flamme or
heating source. Keep a fire extinguisher beside.
2
– Take a glass jar (0,6 to 1,5L) with opening
of 58mm min (98mm max).
3 – Prepare
the brine according to the manual below or video (with 2 to
4g/liter of persulfate).
4 – Put the electrodes-lid in the
glass jar (you can seal it with PTFE or silicone
rubber but it’s very hard)
5 – The set is « Ready
to use » : connect the 5,5mm plug of the 24V 3A power
supply to the current regulator.
6 – Switch on the card
regulator and control the voltage + current. The output voltage must
be less than 5V (less than 4,5V between electrodes) and stabilised
near 10A for long module lifetime (with active cooling).
7 –
From time to time control the PH (6,5 is perfect) even you can do
without, and the PH will stabilize around 9 – 10 (lowest yield).
Along the days, complete with water the evaporation.
8 – To
improve the yield, you can wrap the jar with synthetic cloth to rise
the temperature.9 – If you use KCl in solution, just collect the
KClO3 crystals at the bottom.
9.5 – If you use NaCl :
when the voltage rise after the estimated time (depend of yield) make
a methylene blue test to show traces of ClO4 ions. If you got a
purple color and flakes, the electrolysis can be stop, almost all the
NaCl passed into NaClO3.
→ You can
use this set for pool chlorination (NaClO below 40°C).
→ You
can also use this for produce weed killer :
the most ecological weed killer because NaClO3 is degrading in NaCl
(table salt) and return to the ocean.
Warning:
-
Ru-Ir coating is quite sensitive : never chock or strike them.
-
Avoid fluorine and all fluorine salt (persulfate works very well).
-
Respect the max current to avoid fast degradation.
- Don’t
reverse polarity, it will rapidly destroyed the electrodes.
-
Gas are dangerous and flammable, the running cell MUST work in
appropriate place.
- Read the manual.
- In some countries,
for non-laboratories, some chlorate and their concentrations are
restricted.
Manual
of laboratory electrolysis
(ENGLISH V.31.05.2019):
https://pdfhost.io/v/0ygp2v@dL_Practical_guide_to_electrolysispdf.pdf
(FRENCH
V.31.05.2019):
https://pdfhost.io/v/0OlQ6A0s2_Guide_pratique_electrolysepdf.pdf
Evaluation
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