... point, %≤0.2Aniline, %≤0.07Freezing point,≥52.60Reaction of water extract substanceNeutralMoisture, %≤0.2Alcohol insoluble substance, %≤0.05 Properties: ... . Gravity:1.160. boilpoint:302(20ºC),little soluble in water, soluble in alcohol,ether,benzene and so on. Can ... soluble in concentrated inorganic acid solution, but it can separate out if water ...