Flashing point forecasting method for mixed solution of flammable liquid

The invention discloses a flashing point forecasting method for a mixed solution of flammable liquid, which is combined with the laser Raman spectroscopy to obtain the relationship between the flashing point of the mixed solution and the intensity of a characteristic peak of the Raman spectrum, and forecasts the flashing point of the mixed solution by utilizing the relationship. The flashing point forecasting method is simple, dispenses with complex calculation, and can be applied to multiple fields of daily experimental study, online real-time detection in industrial production, and the like.