English (GB)
9
3.5 Physical and chemical data of chlorine
Under normal conditions of pressure and temperature, chlorine is
a yellowish green gas with a pungent odour, which exists as Cl
2
molecule.
It is not flammable, but can promote the flammability of metals,
hydrocarbons, etc.
Fig. 7
Vapour pressure curve of chlorine
Fig. 8
Solubility of chlorine gas in water
Atomic weight
35.457 u
Molecular weight Cl
2
70.941 u
Density (liquid)
1.57 g/cm
3
at -34.05 °C
Density (gas)
3.214 g/l at 0 °C, 1 bar
1 litre of liquid chlorine at 0 °C
is equivalent to 457 litres
(0.457 m
3
) of chlorine gas
1 kg of liquid chlorine at 0 °C
is equivalent to 311 litres
(0.311 m
3
) of chlorine gas
Specific gravity
2.486 (specific gravity of air: 1)
Boiling point
-34.05 °C (1 bar)
Melting point
-101.5 °C
Evaporation heat
269 kJ/kg (at 0 °C)
Heat conductivity
0.527 kJ/m
2
h
(liquid chlorine)
Degree of purity according to
DIN19607
99.5 %
TLV (Threshold Limit Value)
1.5 mg/m
3
(0.5 ppmv)
TM
04
0
691
09
08
TM
04
06
92
09
08
Temperature [°C]
0
4
8
12
16
20
-50
-30
-10
0
10
30
50
70
Pressure [bar]
10
30
50
70
90
2
6
14
0
10
Temperature [°C]
Solution [g/l]
Summary of Contents for Vaccuperm VGA-111
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