R404a Refrigerant

R-404A is a pseudo-azeotropic mixed refrigerant composed of the three ingredients R-125, R-134a, and R-143a, and was developed as a substitute refrigerant for R-502 and R-22, used in commercial refrigerator equipment for low and medium temperature ranges. It possesses outstanding properties as a refrigerant for showcases, refrigerated vehicles, ice makers, and other equipment.

R404a is an HFC mix refrigerant gas. It’s mixture consisting of R125 (44%), R143a (52%) and R134a (4%).

R404a Refrigerant Gas Properties:

1. Appearance: Compressed liquefied gas.
2. Colour: Clear, colorless
3. Odour: Slight ethereal
4. pH: Not available.
5. Melting point: No data available.
6. Boiling point: -47.2°C to -46.4°C
7. Density: 06 g/cm3 at 20°C
8. Vapour Density: 42 approx, at bubble point temperature. (Air= 1)
9. Vapour pressure: 8270 mm Hg at 20°C
10. Partition coefficient (n -octanol/water): Log pow = 1.740 (R143a, NLM Dataset);
11. Log pow = 2.3 (R125); Log pow = 1.274 (R134a, HSDB).
12. Solubility in water: Insoluble in water;
13. Soluble in: chlorinated solvents, alcohols, esters.
14. Flash point: No data available.
15. Critical Temperature: 1°C
16. Critical Pressure: 74 Mpa
17. Flammability: Not flammable.
18. Oxidising properties: Non oxidizer.