Physical state: appearance: white crystalline powder or yellowish. Application: mostly used in petroleum industry, it is the main raw material of tungsten catalyst for refinery.
Used in synthetic resins, pesticides and as solvents. Mainly for the production of indene - coumarone resin. The material of Indene - coumarone resin is the heavy benzol and light oil fractions in the distillation cut 160-215 C, it contains 6% styrene, 4% coumarone, 40% indene, 5% 4 - methylstyrene and a small amount of xylene, toluene and other compounds, resin take 60-70% of the total amount of raw materials. Under the effect of catalyst such as Aluminum chloride, boron trifluoride etc. to polymerize fraction of the indene and coumarone with or without pressure, that is to generate indene - coumarone resin. Also can be pesticides intermediates or mixed with other liquid hydrocarbon to make paint solvents.
