MackFri - 600a
MackFri® - 600a
ASHRAE Name : R-600a
The Blends for replacement of R-12
MackFri®-600a refrigerant. Chemical formula С4Н10 (isobutane). In comparison with R12 and R134a refrigerants, isobutane has considerable ecological advantages. This natural gas does not deplete ozone layer (ODP = 0) and does not cause greenhouse effect (GWP = 0,001). Mass of the refrigerant circulating in the refrigeration aggregate at butane using, is considerably reduced (approximately by 30%). Specific mass of isobutane is twice bigger than specific mass of the air - gaseous R600a is spread along the ground. Isobutane is easily soluble in mineral oil, it has higher refrigerating factor that R12 and it reduces energy consumption. Physical qualities of R600a are given in the table down.
Similar : Isobutane
Physical properties:
| Molecular weight |
58.12 |
| Boiling point under 1.013x105Pa,0C |
-11.80 |
| Density of liquuid at 250C,g/cm3 |
0.551 |
| Vapor pressure at 250C,MPa |
0.498 |
| Critical temperature, 0C |
134.98 |
| Critical pressure, MPa |
3.66 |
| Critical density, g/cm3 |
0.221 |
| Latent heat of vaporization at bp., KJ/Kg |
366.5 |
| Specific heat, liquid, 250C, KJ/Kg.0C |
2.38 |
| Explosive limits, vol% |
1.85-8.5 |
|
Safety:
| Ozone-Depletion Potential (ODR) |
0 |
| Global Warming Potential (GWP) |
0.001 |
|
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