Ferric Chloride Solution PROPERTIES Appearance, odour : Reddish liquid with faint odour of hydrogen chloride.Melting Point : Not available. Boiling Point : 105 -110CVapour Pressure (20C) : Not available.Specific Gravity (20C) : 1.45Flash Point : >160CFlammability Limits (%) : Not available.Vapour Density (air=1) : 1.5kg/m3%Volatile by volume : 58Solubility : Completely soluble in water.