GENERAL PROPERTY
:-
- It is colorless, tasteless,.
- Specific Gravity = 1.1047;which is heavier then that of air.
- Critical Temp. = -119°C
- Oxygen can cause dangerous condition in mine only by its absence.
- 100 volume of water at room temp. consume 3 volume of oxygen.
- In any mines,oxygen should be 19% or more(for India) & 19.5% or more (for USA)
USES OF OXYGEN IN MINES
:-
- Breathing by person.
- Slow oxidation of coal or other carbonaceous material.
- Burning of F.S.L. (Flame Safety Lamp) and for non-coal mine by acetylene lamp.
- Decay of material, timber by fungus growth.
Deficiency of Oxygen | |
O2 Conc. | Effects |
19% | Flame height on F.S.L gets reduced by 50% |
17% | Noticeable increase in rate of breathing |
15% | Spinning sensation in head & increased heartbeat |
13-9% | Distortion, fainting, vomiting sensation, headache, blue lips and coma may occur |
7% | Coma, Convulsions (Violent uncontrollable contraction of muscles) or death may occur |
Below 6% | The condition may eventually lead to death. |
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