User manual

25
General Operation
Bath Fluid
Limitations and Disclaimer 8.2.11.1
The information given in this manual regarding fluids is intended only to be used as
a general guide in choosing a fluid. Though every effort has been made to provide
correct information we cannot guarantee accuracy of data or assure suitability of a
fluid for a particular application. Specifications may change and sources sometimes
offer differing information. Hart Scientific cannot be liable for any personal injury or
damage to equipment, product or facilities resulting from the use of these fluids. The
user of the bath is responsible for collecting correct information, exercising proper
judgment, and insuring safe operation. Operating near the limits of certain properties
such as the flash point or viscos ity can compromise safety or performance. Your
company’s safety policies re garding flash points, toxicity, and such issues must be
considered. You are responsible for reading the MSDS (material safety data sheets)
and acting accordingly.
Table 3 Table of Various Bath Fluids
Fluid
(# = Hart
Part No.)
Lower
Temperature
Limit *
Upper
Temperature
Limit *
Flash
Point
Viscosity
(centistokes)
Specic
Gravity
Specic
Heat
(cal/g/°C)
Thermal
Conductivity
(cal/s/cm/°C)
Thermal
Expansion
(cm/cm/°C)
Resistivity
(10
12
:-cm )
Halocarbon
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 (, 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 () 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 (, 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 (, 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 (, 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 (, 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 (, cc)
300°C (, 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 (, 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 (, 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 :/cm
3
*Limiting Factors — b – boiling point e – high evaporation  – ash 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.