LXXXVIII.—Negative colloidal ferric hydroxide

Frank Powis
1915 Journal of the Chemical Society Transactions  
Very dilute ferric chloride solutions are almost colourless when freshly prepared, but become brownish-yellow on keeping for a day (compare Wagner, Kiolloid Zeitsclb., 1914,14,149) ; the solutions employed were therefore prepared only a ahort time before use by diluting a 0.4N-solution.
doi:10.1039/ct9150700818 fatcat:a45pfivle5hmjh2xaitm6ubmoy