kerosene; white kerosene
Refers specifically to refined kerosene used as fuel for heaters, lamps, and sometimes as a solvent. Often contrasted with 灯油 (kerosene in general) or 赤灯油 (red kerosene for agricultural use).
Because it was cold, I went to buy white kerosene for the heater.
White kerosene is more refined than red kerosene and is suitable for home heating.
Compound of 白 (white) + 灯油 (kerosene), referring to the clear, refined appearance of this grade of kerosene.