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Thermlnol 77 Preliminary Technical Data Sheet
Therminol 77 is a clear, amber fluid with exceptionally high thermal and oxidative stability. It was especially designed for use as a liquid-phase heat transfer fluid at temperatures above 600F. Follow ing are some fluid properties:
Temp. __
100 210 300 400 500 600 700 800
Vapor Pressure (mm Hg)
-- --
0.27 1.03 9.2 44 168 530
Viscosity
(cs)
Lbs/Ft-Hr
181 7.78 --
1.50 0.96 0.66 0.46* --
505 20.8 --
3.74 2.28 1.49 0.99 --
Density (GMS/cc) (Lbs/Gal)
1.152 1.106
--
1.029 0.981 0.931 0.885
...
9.60 9.22
--
8.58 8.16 7.76 7.38
--
Temp.
:'F .
100 200 300 400 500 600 700 800
Specific Heat (BTU/Lb)
0.350 0.385 0.420 0.455 0.495 0.530 0.565 0.600
* Extrapolation
Thermal Conductivity (Cal/cm. C, sec) (BTU/F, Ft-Hr)
32.25 x 10-5 31.40 x 10"5 30.50 x 10`5 29.65 x 10'5 28.80 x 10'5
-- --
--
0.0781 0.0760 0.0739 0.0719 0.0698
--
---- -
--
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MONSANTO COMPANY 800 NORTH LINDBERGH BLVD. ST. LOUIS, MO. 63166
1C AfMbt tOU l> 1AIMII IN THIS
0095368
TOWOLDMON0043767 WATER_PCB-00028236
Refractive Index
1.6413
Pour Point
+ 45 F
Flash Point
460 F
Fire Point
540 "F
A.X.T. Thermal Decomposition*
1115F 800 *F
Electrical Properties Dielectric Constant at 100C
60 Cycle 3.77
1000 Cycle 3.54
Power Factor at 100C, 7.
19,3
1.21
Resistivity, ohm-cm
at 100C 29 ~ io9
Oxidation-Corrosion Test (48 hrs . 450"F, Air, MIL-L-9236A Method)
7o Viscosity Increase at 100F at 210F
2 Metal Weight Loss, rag/era
37 13
Cu -1.56 Fe +0.01 Mg +0.02 Ag -0.99 Ti 0.0 A1 0.0
Toxicity and Safe Handling:
Appropriate animal toxicity studies indicate that Therminol 77 is "practically non-toxic" from the standpoint of accidental swallow ing or single massive skin exposures. Irritation potential studies indicate that it should not be irritating to the skin and only slightly irritating to the eyes if there is accidental contact. Animals survived a single four-hour exposure to an atmosphere saturated with vapors at room temperature. It appears that no particular safety precautions are necessary during the handling of this fluid at room temperature.
* Thermal decomposition was determined by the isoteniscope method as described in the "Journal of Chemical and Engineering Data," January 1961, Volume 6, No. 1. It Is defined as the temperature at which dp/dt s 0.014 mm. Hg per second or 500 mm. Hg per 10 hours.
0095369
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TOWOLDMON0043768 WATER_PCB-00028237