Appearance colorless transparent liquid Conforms Purity 99.5% Moisture 0.1% Acid content 0.25% High boiling material 0.25% Acetonylacetone not found Density 0.972~0.975 Refractive index 1.45±0.002 Evaporation residue 0.01% Iron content 1ppm 2,4-HEXANEDIONE not found