Derivative
Tetrahydrate.
Properties
Pale red, transparent monoclinic crystals. d 1.59. Sol in water or
alcohol. LD50 orally in rats: 3.73 g/kg, Smyth et al., Am. Ind. Hyg.
Assoc. J. 30, 470 (1969).As mordant in dyeing; manuf bister; drier for paints
and varnishes (1-1.5:1000).