A liquid mixture containing $35$mol$\%$ hexane, $15$mol$\%$ xylene, $25$mol$\%$ benzene and $25$

mol$\%$ toluene is contained in a steel vessel vented to atmosphere at $30C$ and $1$atm.

Evaluate the flammability of the mixture.$)$Suggest three practical safety measures that can

be done to the vessel to safeguard it from possible fire and explosion.