Eucalyptus leaf oil, also known as the white thousand layer of brain, eucalyptus brain, is a colorless oily liquid, in eucalyptus oil, yushu oil, camphor oil, laurel leaf oil and other substances extracted, widely used in medicine, the preparation of toothpaste fragrance and so on. Colorless or yellowish liquid. Specially cool spiked leaves aroma and with a few camphor smell, with some medicine, there is a spicy cool feeling, strong aroma, but not long-lasting. There is a certain anti-mold and anti-bacterial effect. Almost insoluble in water, soluble in ethanol, waterless ethanol, oil and fat. The flash point is 50 degrees C.