Health Issues:

If exposed to butane, butane can attack the Central Nervous System (CNS)

• If butane is inhaled, butane can cause drowsiness, narcosis, asphyxia, and frostbite.

• If butane is in contact with skin, frostbite can occur.

• If butane is in contact with eyes, frostbite can occur.

In the UK, butane is the most commonly misused volatile substance, it was the cause of death to 52% of solvent deaths in 2000. "Sudden death syndrome" is the single most common cause of solvent related deaths with 55%. Recently butane lighters made by Ace Hardware, have been recalled because of leakage of butane. These leakage problems could call flashbacks and sudden bursts of flame. These flashbacks have caused a small kitchen fire and one women's hair caught on fire.

Properties:

Density of gaseous C4H10	2.52 g/l
Density of liquid C4H10	0.584 g/cm3
Melting point of C4H10	−138 °C
Boiling point of C4H10	−0.5 °C
Flash point* of C4H10	−60 °C
Autoignition point** of C4H10	365 °C
Solubility of C4H10 in Water	6.1 mg/100 mL at 20 °C
EU Classification of C4H10	Extremely Flammable (F+)
Appearance of C4H10	Odorless, colorless compressed liquefied gas
Structure configuration of C4H10	CH3CH2CH2CH3
Corrosive action to Metal	Not corrosive to metal

*According to Dictionary.com, the "Flash Point" is the lowest temperature at which a liquid in a specified apparatus will give off sufficient vapor to ignite momentarily on application of a flame.

**According to Dictionary.com, the "Autoignition Point" is the minimum temperature at which a substance will undergo spontaneous combustion.

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