I've noticed that the final product quality depends on how well the acidic solution is filtered prior to basification.
justine said:
I agree, I always decant and pour rather than filter and it works great
It does, indeed, although it takes ~12 hours for the solution to clear and settle completely.
gibran2 said:
Powdered MHRB settles very quickly. This is a nice mess-free way to do it!
I experimented a few times by decanting the solution after an hour first and leaving it to settle for another 8 hours. Always there was more sediment, almost as much as after the first decanting, only finer.
If I am in a hurry I use vacuum filtering. What works for me, is progressive filtering. First I use a cotton ball, then a coffee filter and then a couple of lab filter discs of varying density. With some experience it takes ~30 min to filter 0.5l of acidic solution to complete clarity.
mataylor said:
Laboratory vacuum pumps are crazy expensive
A basic water aspirator is sufficient and it costs a few dozen dollars only.