Application Areas
Aircraft, rail transport, shipping, scientific research, automotive industry, solar energy, heating, heat pumps, ice rinks, industrial refrigeration, etc.
Physical & Chemical Properties
Non-corrosive, low toxicity, non-volatile, non-flammable, low kinematic viscosity, low freezing point, odorless, high specific heat, excellent thermal conductivity
Temperature Range
-45℃—110℃
Common Physical Property Table of Zhongfu No.4 (Freezing point: -45℃）
Temperature | Specific heat capacity (kJ/kg·K) | Thermal conductivity (W/m·K) | Viscosity mPa·s (cp) | Density (g/ml) | Boiling point (℃) |
0℃
|
3.187
|
0.364
|
7.87
|
1.083
|
108
|
-10℃
|
3.101
|
0.354
|
12.2
|
1.089
|
108
|
-20℃
|
2.996
|
0.343
|
20.4
|
1.092
|
108
|
-30℃
|
2.905
|
0.334
|
34.9
|
1.095
|
108
|
-40℃
|
2.839
|
0.325
|
36.8
|
1.098
|
108
|
-45℃
|
2.820
|
0.318
|
42.5
|
1.101
|
108
|
Zhongfu No.4 stock solution concentration and freezing point reference values
Zhongfu No.4
Concentrate concentration | 26.5% | 34.5% | 41% | 45.6% | 51% | 56.7% | 60% | 64.5% |
Freezing point
|
-10℃
|
-15℃
|
-20℃
|
-25℃
|
-30℃
|
-35℃
|
-40℃
|
-45℃
|
Specific gravity
|
1.028
|
1.041
|
1.048
|
1.055
|
1.064
|
1.071
|
1.076
|
1.08
|
Zhongfu No.4 Corrosion Test
Zhongfu No.4 Corrosion Test (Coupon specificationType II immersion for 168h）GBT 18175-2000
Test item | Pre-test weight (g) | Post-test weight (g) | Test duration in hours (g) | Post-test weight loss (mg) | Corrosion rate (g/m2h) | Corrosion rate (mm/a) |
A3 steel
|
13.0113
|
13.0110
|
168
|
0.3
|
0.00089
|
0.00099
|
Copper
|
14.8157
|
14.8157
|
168
|
0
|
0.00000
|
0.00000
|
Aluminum alloy
|
4.6020
|
4.6010
|
168
|
1
|
0.00295
|
0.00930
|
304 Stainless Steel
|
13.1107
|
13.1106
|
168
|
0.1
|
0.00030
|
0.00030
|
