 |
Physical properties
 |
|
Solkane 142b |
Solkane 22
(HFA 22) |
| Chemical name |
|
1- Chlor- 1,1 - difluorethane |
Chlordifluormethane |
| Chemical formula |
|
CCIF2-CH3 |
CHCIF2 |
| CAS number |
|
75-68-3 |
75 -45-6 |
| Molecular weight |
|
100,5 |
86,5 |
| Boiling point |
°C |
-9,2 |
-40,8 |
| Melting point |
°C |
-130,8 |
-160 |
| Critical temperature |
°C |
137,1 |
96 |
| Critical pressure |
bar |
41,19 |
49,8 |
Spezific density
liquid at 20 °C |
g/cm3 |
1,12 |
1,21 |
| Viscosity liquid at -15 °C |
mPa.s |
0,43 |
0,264 |
| Flammability |
|
flammable |
non flammable |
| Ignition temperature |
°C |
632 |
- |
| Lower explosion limit |
% volume in air |
6 |
- |
| Upper explosion limit |
% volume in air |
18 |
- |
Thermal conductivity
(gasphase) |
W/mK |
0,012 (20 °C) |
0,011 (20 °C) |
| Vapour pressure at |
| 20 °C |
bar absol. |
2,9 |
9,1 |
| 50 °C |
bar absol. |
6,8 |
19,4 |
| Solubility in water |
g/l |
1,9 (21 °C) |
3 g/l (259,1 |
Quality
| Purity |
min. 99,9% |
| Water content |
max. 15 ppm |
| Acid content (as HCI) |
max. 10 ppm |
| Non-volatile residue |
max. 10 ppm |
Non-condensable gases content
(N2, O2) |
max. 0,2 Vol-%
(Gas phase) |
|
