[White oil supply and procurement] About the color of white oil and its detection method

White oil is a colorless translucent oily liquid with no or almost no fluorescence. It is odorless and tasteless when cold and has a slight petroleum-like odor when heated. It is insoluble in water and ethanol, soluble in volatile oils, miscible in most non-volatile oils, and is stable to light, heat, acid, etc.

The following white oil supplier will help you understand the color of white oil and its detection methods:

Regarding white oil, the white oil product Color can often reflect its essence and stability. Generally, the higher the refining level, the cleaner the hydrocarbon oxides and sulfides are removed, and the lighter the color. The greater the viscosity, the darker the white oil product will be. Generally, straight-run products have better stability, less colloid content, and lighter color. Because cracked products contain unsaturated hydrocarbons and non-hydrocarbon compounds, they are unstable in nature and are easily oxidized to form a gelatinous substance during storage, transportation and use, and become darker in color. However, the transparency and color of white oil produced from different crude oils may be different even under the same refining conditions. Therefore, the depth of refining of white oil cannot be determined by the depth of color alone.

Regarding finished white oil (industrial white oil), the oil product testing organization analyzed that due to the different technologies used by each additive company, the color depth of the additive products is different. Color is now used as an indicator to judge whether the white oil is refined or not. It has lost its original meaning.

There is an experiment in which the sample is injected into the sample container, and a glass disc placed with a standard light source from 0.5-8.0 is used for comparison. The flat color number is the white oil sample. color number. Assuming that a matching color number cannot be found and falls between two standard colors, the darker of the two colors will be used. The larger the value, the darker the color of the oil. Simply put, it does not meet the requirements for white oil.