Quote Originally Posted by Ole
Would it be safer/easier to produce the Ferri oxalate in solution? There is no real need to make a dry powder through a particularly nasty process, when the end result is to be dissolved? All it would take is a way to either make Ferrioxalate solution of a known concentration, or a good way of measuring the concentration.

Just a thought...
In Dick Steven's book all three methods for making FO are for making it in liguid form.