Properties and Dangers of Flammable Gases (Methane: CH4) | Pioneer of a gas alarm gas detector / alarm - Riken Keiki Co., Ltd.

Properties and Dangers of Combustible Gases (Methane: CH4)

Main Properties

Transparent, odorless gas.

Soluble in water. Slightly soluble in water. Soluble in ethanol and others
Specific Gravity 0.6
Melting Point -182.5
Boiling Point -161.5
Ignition Point 537
Dangers & Toxicity
Ignitibility & Explosiveness Generate an explosive gas in air. Explosive Range = 5.0% ~ 15.0%
Physical Effects

A suffocating gas with a hypnotic property. 
Breathing air containing the gas for 30 minutes induces a despondent and depressed state.