Let's see if we can guess the 4 hydroxides he uses. He mentions potassium hydroxide. I am not sure if he counts calcium hydroxide as one or if there are really 5 including it.
My guesses would be:
Dennis
My guesses would be:
- Calcium Hydroxide (Kalkwasser)
- Potassium Hydroxide
- Sodium Hydroxide
- Magnesium Hydroxide
Dennis