Liquid POZH-70 is an ethylene glycol aqueous solutions with the addition of anti-corrosion and antifoam additives.
Ethylene glycol is used to obtain mixtures with a low freezing point. Compared to water, ethylene glycol has a lower freezing point and a higher boiling point. It is a part of many liquid substances, including antifreezes, brake and hydraulic mixtures (including POZH-70 liquid), ethylene glycol is widely used in the production of cooling liquids in heating systems, internal combustion engines, in de-icing mixtures in aviation. Liquid POZH-70, thanks to ethylene glycol in its composition, works reliably at low temperatures (down to -70°C).
Physical and chemical indicators of POZH-70 oil (TC 6-01-5757583-8-79)
Name of the indicator |
Norm GOST (TC) |
---|---|
Appearance | Colorless or slightly yellowish liquid without mechanical impurities. Opalescence allowed |
Density at 20°C kg/m3, within | 1,085– 1,095 |
Kinematic viscosity, mm²/sec | |
- at 50°С, not less than - at 80°С, not less than - at -50°С, not more than |
2,4
1,2
750
|
Boiling point at 760 mm Hg, °С, not less than | 115 |
Mass fraction of mechanical impurities, %, not more than | 0,005 |
Ash, %, not more than | 0,7 |
Hydrogen ion concentration (pH) at 20°С, within | 7,0 – 9,0 |
Starting crystallization temperature, °С, not more than |
-70 |
low temperature properties: stability at -60°С for 6 H | There should be no residue and crystals |
Corrosion to metals at 80°C for 120 H. Weight loss, mg / cm2, not more than | |
Steel 40 in accordance with GOST 1050-74; Copper M-1 or M-3 in accordance with GOST 859-78; Brass L-63 or L-68 in accordance with GOST 2208-75 |
0,3
0,2
0,2
|