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


 
% by Weight
Mean
Temp 
(deg F)
Freezing
Point
(deg F)
Density
(lb/ft^3)
Specific Heat 
(Btu/degF*lbm)
Pure Water
100
77
32
62.4
1.000
  
Methanol
Solution
13.6
77
15
61.190
1.012
10.0
86
20
56.448
1.022
6.3
95
25
61.744
1.027
2.0
104
30
61.766
1.022
   
Ethylene
Glycol
Solution
20.0
77
15
64.577
0.9197
14.6
86
20
63.958
0.9500
8.8
95
25
63.509
0.9800
2.5
104
30
62.612
1.001
   
Propylene
Glycol
Solution
23.5
77
15
63.958
0.9608
18.3
86
20
63.509
0.9716
12.9
95
25
63.210
0.9816
5.9
104
30
62.761
0.9916
   
Sodium
Chloride
Solution
13.3
77
15
68.895
0.8669
10.1
86
20
67.250
0.8815
6.4
95
25
65.454
0.9195
   
Calcium
Chloride
Solution
14.3
77
15
70.840
0.795
11.3
86
20
68.895
0.835
   
GS4
Solution
100
-10
-75
80.844
0.6670
80
 
-40
78.815
0.7370
60
20
-6
73.353
0.8070
40
28
-11
69.919
0.8850
20
30
22
65.549
0.9520
 
*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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