FLUORODICHLOROMETHANE
CHEMICAL FORMULA: CHFCl2
TECHNICAL REQUIREMENTS: 2412-138-05807960-2001
APPEARANCE, SAFETY REQUIREMENTS
R 21 is a colorless gas, liquefied under pressure, non-inflammable, low toxic, with a slight odor of chloroform. ODP = 0.04.
APPLICATION
R21 is used as a refrigerant to produce the temperature about 0°C, and as a component of refrigerant blends, propellants.
TECHNICAL REQUIREMENTS
|
Parameters |
Norm |
| Mass content of fluorodichloromethane (%) min |
99,5 |
| Mass content of chromatographically determined impurities (carbon tetrachloride, difluorodichloromethane, fluorotrichloromethane, chloroform, etc (%) max |
0,5 |
| Mass content of non-volatile residue (%) max |
0,004 |
| Mass content of water (%) max |
0,005 |
| Acidity |
Color of indicator must not change |
PACKING
R21 is packed in vessels designed for minimum working overpressure of 1.27 MPa. Filling ratio is maximum 1.2 kg per 1dm3of the vessel.
STORAGE
Guaranteed shelf life is 1 year from the date of manufacture.
