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Fluids Table 1: Densities and Specific Heats for Various Solutions*


 
% by Weight
Mean
Temp 
(deg C)
Freezing
Point
(deg C)
Density
(kg/m^3)
Specific Heat 
(kJ/deg K*kg)
Pure Water
100
25
0
999.6
4.184
   
Methanol
Solution
13.6
25
-9.4
980.2
4.232
10.0
30
-6.7
904.2
4.274
6.3
35
-3.9
989.0
4.296
2.0
40
-1.1
989.4
4.275
   
Ethylene
Glycol
Solution
20.0
25
-9.4
1034.4
3.848
14.6
30
-6.7
1024.4
3.975
8.8
35
-3.9
1017.3
4.100
2.5
40
-1.1
1002.9
4.190
   
Propylene
Glycol
Solution
23.5
25
-9.4
1024.5
4.023
18.3
30
-6.7
1017.3
4.065
12.9
35
-3.9
1012.5
4.107
5.9
40
-1.1
1005.3
4.149
   
Sodium
Chloride
Solution
13.3
25
-9.4
1103.6
3.627
10.1
30
-6.7
1077.2
3.688
6.4
35
-3.9
1048.4
3.847
   
Calcium
Chloride
Solution
14.3
25
-9.4
1134.7
3.332
11.3
30
-6.7
1103.6
3.499
   
GS4
Solution
100
-23.3
-59.4
1295.0
2.795
80
-15.0
-40.0
1262.5
3.089
60
-6.67
-21.1
1175.0
3.382
40
-2.22
-11.7
1120.0
3.709
20
-1.11
-5.6
1050.0
3.989
 
*Adapted from Closed-Loop/Ground-Source Heat Pump Systems Installation Guide.  NRECA Research Project 86-1.  Oklahoma State University.  1988. and Perry, RobertH. and Chilton, Cecil H. Chemical Engineer's Handbook. 5th Ed. New York, McGraw Hill Book Company, 1973.

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