Gas lighter is the use of butane gas as fuel, the use of the following points should be noted:
(1) should always keep the body there is gas. Check the fuselage of the storage capacity, as long as the lighter shake,
Hear a liquid (butane liquefied gas) impact sound, then there is still gas inside the body.
(2) when the flame and adjust the flame, do not aim at the face or too close to the face, so as not to flame out
Out of business.
(3) filling the gas, not in the vicinity of the fire, but not the use of fire roasted baking heating to prevent the burst.
(4) should be used after the timely pressure shock hood down to extend the use of gas time, usually should keep out
Valve clean, often with a brush to remove the dirt on the lamp, so as to avoid the phenomenon of flame skew.

Colorless flammable gas.
Melting point -135.35 , boiling point -0.5C, relative density 0.5730 (25 ), refractive index 13326 (20.C), the critical temperature of 1520l.C, the critical pressure 38OkPa, the critical volume of 4387ml/g.
Do not dissolve in water, soluble in ethanol, ether, chloroform and other hydrocarbons.
With the formation of explosive mixture of air, the explosion limit of 19% to 84% (V / V)