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3,5,5 trimethylhexyl acetate is described as a colourless liquid with an odour characteristic of aromatic chemicals. Its freezing point is below -20 °C and its boiling point is 207.1 °C. The dynamic viscosity of the substance is 1.81 mPa · s at 23 °C. The substance has a relative density of 0.8653, a water solubility of 19.1 mg/L and a log Kow of 4.6 at 25 °C. The vapour pressure is 136 Pa at 25 °C. The flash point of the substance at 1013 hPa is 70 °C and the auto-ignition temperature is 422 ± 5 °C at standard atmospheric pressure. 3,5,5 trimethylhexyl acetate is non-explosive and non-oxidising.