Difluoromethane is a colorless, flammable gas with a slight ether-like odor. It is shipped as a liquefied gas under its own vapor pressure (207 psig @ 70° F).
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Applications
Applications of difluoromethane include the following:
- Currently used as a substitute for R-410a in residential and commercial air conditioners in Japan, China, and India
- Plating agent and surface treating agent
- Plasma etching
- Heat transfer fluid
- Used in refrigerant blends
Grade 3 | Grade 4 | |
---|---|---|
Purity | 99.9% | 99.99% |
Nitrogen | < 300 ppmv | < 40 ppmv |
Oxygen | < 50 ppmv | < 10 ppmv |
Carbon Dioxide | < 5 ppmv | |
Moisture | < 100 ppmv | < 5 ppmv |
Other Halocarbons | < 60 ppmv | |
Acidity | < 0.1 ppm/w | |
Other Organics | < 700 ppmv |
**Moisture level guaranteed only when Electronic Fluorocarbons prepares the cylinders.
All concentrations are on a mol/mol basis unless otherwise stated.
Product sold on the basis of total impurities. Individual impurities may vary slightly.
Chemical & Physical Properties | |
Molecular Weight | 52.02 |
Specific Volume | 7.19 cu.ft/lb |
Pressure @ 70° F | 207 psig |
Valve Outlet: CGA 350 | CGA 350 DISS 724 |
Shipping Data | |
DOT Name | Difluoromethane |
Hazard Class | 2.1 |
DOT No. | UN 3252 |
DOT Label | Red, Flammable Gas |
CAS No. | 75–10–5 |
Cylinder Size | Fill Weight (lbs) |
44L/Size 200 | 65 |
16L/Size 80 | 25 |
7L/Size 35 | 15 |
*This gas not available for purchase online.