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407A |
R-32 / Difluoromethane / 20% R-125 / Pentafluoroethane / 40% R-134 / 1,1,1,2-tetrafluoroethane / 40% |
HFC-32/HFC-125/HFC-134a R-502 Replacement |
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| General Characteristics | Health Hazards | Material Recommendations |
| A colorless, nonflammable, noncorrosive gas with etheral odor. | An asphyxiant. | Normal materials can be used. |
| TLV-TWA | Flammable Limits | DOT Class / Label |
| 1000 ppm | Nonflammable | 2.2 / Refrigerant Gas N.O.S. |
| Molecular Weight | Latent Heat Vaporization | Density Saturated Liquid Density Saturated Vapor |
| 90.1 | 76.779 @ 70 F, Btu/lb | 72.3808 @ 70 F, lb/ft33 |
| CGA Valve Outlet | CAS Registry No. | UN Number |
| 660 | Difluoromethane 75-10-5 Pentafluoroethane 354-33-6 1,1,1,2-tetrafluoroethane 811-97-2 |
1078 |
| National Stock Number (NSN) Applicable to 407A | MIL Specs/ Fed Specs MSDS for 407A |
| Grade Part # |
Purity Minimum | Cylinder Size |
Volume LBS |
Pressure @ 70 F psia |
Comments |
| Chemically Pure K6735 |
99.9% Min. | Bulk 761 454 056 D50 D30 |
Bulk
1750 1000 125 50 30 |
163.2 163.2 163.2 163.2 163.2 163.2 |
None |
| Uses: 407A has been identified as the energy efficient replacement for R-502 in nonhermetic systems (hermetics use 407B). 407A has the lowest global warming potential of any HFC replacement for R-502. This is a zero ODP refrigerant. |
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Last Updated: January 4, 2001