Fluke 7341 - Page 51

General Operation
Heat Transfer Fluid 8
8-7
Table 8-1. Various Bath Fluids and Their Properties
Fluid
(# =
PN)
Lower
Temp.
Limit*
Upper
Temp.
Limit*
Flash
Point
Viscosity
(centisto
kes)
Specific
Gravity
Specific
Heat
(cal/g/°C)
Thermal
Conductivity
(cal/s/cm/°C)
Thermal
Expansion
(cm/cm/°C)
Resistivity
(1012Ω-
cm)
Halocarb
on 0.8
#5019
–100°C
(v)**
70°C (e) NONE 5.7@–50°C
0.8@40°C
0.5@70°C
1.71@40°C 0.2 0.0004 0.0011
Methanol
–96°C (fr)
10°C
(fl,cc)
12°C 1.3@–35°C
0.66@0°C
0.45@20°C
0.810@0°C
0.792@20°C
0.6 0.0005@20°C 0.0014@25°C
Water 0°C (fr) 95°C (b) NONE 1@25°C
0.4@75°C
1.00 1.00 0.0014 0.0002@25°C
Ethylene
Glycol—
50%
#5020
–30°C (fr)
90°C (b) NONE 7@0°C
2@50°C
0.7@100°C
1.05 0.8@0°C 0.001
Mineral
Oil No.7
#5011
10°C (v) 166°C
(fl)
168°C 15@75°C
5@125°C
0.87@25°C
0.84@75°C
0.81@125°C
0.48@25°C
0.53@75°C
0.57@125°C
0.00025@25°C 0.0007@50°C 5@25°C
Silicone
Oil Type
200.05
#5010
–40°C
(v)**
130°C
(fl, cc)
133°C 5@25°C 0.92@25°C 0.4 0.00028@25°C 0.00105 1000@25°C
10@150°C
Silicone
Oil Type
200.10
#5012
–30°C
(v)**
209°C
(fl, cc)
211°C 10@25°C
3@135°C
0.934@25°C 0.43@40°C
0.45@100°C
0.482@200°C
0.00032@25°C 0.00108 1000@25°C
50@150°C
Silicone
Oil Type
200.20
#5013
10°C (v) 230°C
(fl, cc)
232°C 20@25°C 0.949@25°C 0.370@40°C
0.393@100°C
0.420@200°C
0.00034@25°C 0.00107 1000@25°C
50@150°C
Silicone
Oil Type
200.50
#5014
30°C (v) 278°C
(fl, cc)
280°C 50@25°C 0.96@25°C 0.4 0.00037@25°C 0.00104 1000@25°C
50@150°C
Silicone
Oil Type
550
#5016
70°C (v) 230°C
(fl, cc)
300°C
(fl, oc)
232°C 50@70°C
10@104°C
1.07@25°C 0.358@40°C
0.386@100°C
0.433@200°C
0.00035@25°C 0.00075 100@25°C
1@150°C
Silicone
Oil Type
710
#5017
80°C (v) 300°C
(fl, oc)
302°C 50@80°C
7@204°C
1.11@25°C 0.363@40°C
0.454@100°C
0.505@200°C
0.00035@25°C 0.00077 100@25°C
1@150°C
Silicone
Oil Type
210-H
66°C (v) 313°C
(fl, oc)
315°C 50@66°C
14@204°C
0.96@25°C 0.34@100°C 0.0003 0.00095 100@25°C
1@150°C
Heat
Transfer
Salt
#5001
180°C (fr) 550°C NONE 34@150°C
6.5@300°C
2.4@500°C
2.0@150°C
1.9@300°C
1.7@500°C
0.33 0.0014 0.00041
1.7 Ω/cm
3
*Limiting Factors — b - boiling point e - high evaporation fl - flash point fr - freeze point v - viscosity — Flash point test oc = open cup cc = closed
cup
**Very low water solubility, ice will form as a slush from condensation below freezing.