Common explosives are potassium chlorate, ammonium nitrate, ammonium dichromate, sodium and potassium.
2. Flammable gas
The common flammable gases are H2, Co, CH4, LPG and water gas.
3. Flammable liquid
The common flammable liquids are ethanol, gasoline, kerosene and diesel.
4. Flammable solid
The common flammable solids are sulfur, silicon powder, magnesium powder, aluminum powder, zinc powder and trinitrotoluene.