Used for the production of petrol, to increase the octane number of the fuel and to improve the characteristics of the petrol. The A-grade fraction is mainly used for this purpose.
- Visual appearance — transparent liquid colourless
- Density at 20ºС = 660
- Octane number by engine method = 89
- Research method octane number = 95
- Saturated vapour pressure = 854 millimetre of mercury.