Prepn: Gmelins, Iron (8th ed.) part B, 747-761 (1932).
Derivative
Sesquihydrate.
Properties
Red, deliquesc crystals. Dec on heating. Sol
in water, alcohol, ether, acetone, pyridine, ethyl acetate. Practically
insol in CHCl3, CCl4, CS2, toluene.
Keep well closed.