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View Full Version : Sodium Hydroxide? or Potassium Hydroxide?



Aspico
08-05-2008, 12:41 AM
What's the difference and which is better? How do you know how much to use? Is there a formula for water volume and plate area to determine the amount?

LinChiek
08-05-2008, 12:55 AM
What's the difference and which is better? How do you know how much to use? Is there a formula for water volume and plate area to determine the amount?
from what i read, KOH is better than NaOH.....

but pls dun use soda bicarbonate and salt...... ;)

LinChiek
08-05-2008, 01:00 AM
the concentration of KOH or NaOH solution mainly depends on the placement of ur plates...

if the spacing between each plates is very small, then u need less KOH concentration.

formula to calculate ur concentration (%w/v); dH2O = distilled water

5g KOH + 100ml (dH2O) = 5 / 100 x 100% = 5%w/v KOH solution

10g KOH + 100ml (dH2O) = 10 / 100 x 100% = 10%w/v KOH solution