Colorless oily liquid, specific gravity 0.9861 (20/20), -55 melting point, boiling point 370 (pressure), do not dissolve in water, soluble in alcohol, ether, mineral oil, most organic solvents. Quality Index: GB11406-89 Table octyl phthalate performance project quality product a clear product appearance, no visible impurities oily liquid Color (PT - Co) of ≤ 30 40 Ester Content% ≥ 99.5 99 Density (p20) g / cm 3 0.982-0.988 0.982-0.988 Acidity (in terms terephthalic acid)% ≤ 0.01 0.015 Loss on drying% ≤ 0.2 0.3 Flash point ≥ 195 192 color after heat treatment (PT - Co) of ≤ 100 - Volume resistivity. Cm ≥ 1x10 "-