SE/SG-300 series two-wire compact ultrasonic level transmitters
47
9.
SOUND VELOCITIES IN DIFFERENT GASES
The following table contains the sound velocity of various gases measured at.
Gases
Sound Velocity (m/s)
Acetaldehyde
C
2
H
4
O
252.8
Acetylene
C
2
H
2
340.8
Ammonia
NH
3
429.9
Argon
Ar
319.1
Bensol
C
6
H
6
183.4
Carbon dioxide
CO
2
268.3
Carbon monoxide
CO
349.2
Carbon tetrachloride
CCl
4
150.2
Chlorine
Cl
2
212.7
Dimethyl ether
CH
3
OCH
3
213.4
Ethane
C
2
H
6
327.4
Ethanol
C
2
H
3
OH
267.3
Ethylene
C
2
H
4
329.4
Helium
He
994.5
Hydrogen sulphide
H
2
S
321.1
Methane
CH
4
445.5
Methanol
CH
3
OH
347
Neon
Ne
449.6
Nitrogen
N
2
349.1
Nitrogen monoxide
NO
346
Oxygen
O
2
328.6
Propane
N.A.
C
3
H
8
246.5
Sulphur hexafluoride
SF
6
137.8