Mississippi Code Title 63. Motor Vehicles and Traffic Regulations § 63-3-113

(a) “Explosive” means any chemical compound or mechanical mixture that is commonly used or intended for the purpose of producing an explosion and which contains any oxidizing and combustive units or other ingredients in such proportions, quantities or packing that an ignition by fire, by friction, by concussion, by percussion, or by detonator of any part of the compound or mixture may cause such a sudden generation of highly heated gases that the resultant gaseous pressures are capable of producing destructible effects on contiguous objects or of destroying life or limb.

(b) “Flammable liquid” means any liquid which has a flash point of 70 degrees F., or less, as determined by a tagliabue or equivalent closed cup test device.