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0' *. 2(11 MIXED ISOMERIC TERPHENYLS
Monsanto Technical Bulletin No, P-105 April 25, 19*9
Monsanto Chemical Company St. Louis *, Mo.
Mixed Isomeric Terphenyls are high melting hydrocarbons of
unusual stability toward heat. There is no detectable action
on the Mixed Isomeric Terphenyl from boiling 10# H2S0^ or
boiling 10# NaOH.
--
Physical Properties
Density @ 25C. - g./cc........................................... 1.133
,, Color - NPA
.................. .... ....... . vWl.- 3-5 " *-5
Melting Point
Mixed Isomeric Terphenyl does not have a sharp melting
point.
-
..
Begins to soften ................................ 60C. (1*0"F<) Completely liquid-,...............................1*5C. (293^P.)
Solidification Temp. -
Upper hold point . ....... 137-i*5C. (278-2?3'F.) Lower hold-point ........ TO-SS'C. (118-1*5 F.)
Distillation Range D-20 wodifled, 364-*l8C. (687-784F.)
Flashpoint . ......................................
191C. (375*F.)
Flame point .............................................. 238C.(460*F.)
Mm
to >
Is hmt* am mm a
................ .
0627401
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Vapor Pressure - Mm of Mercury
*3
0
O
T. C.
Mm. He.
Mm. He.
T. C..
Mm. He
150 i:3 230
26 310
160 2.0 240
36 320
170 3-0 250
48 330
180 4.6 260
63 340
190 6.8 270
83 350
200 9.8 280 ..... 110 360
210 14.0 290
140 370
220 19.0 300
180 380
220 270 340 410 500 610
730 870
Electrical Properties
Dielectric Constant Volume Resistivity - ohm-cm
100C. 135C. 155C.
.. ., ..
2.58 140,000 x 10Q
35,000 x log
550 X 109
Comparative Hardness (Smaller figure denoting greater hardness)
Average Penetration In cm. x lCr In 60 seconds at 25C. under load lndlcated. ASTM 0-5-25.
Wax
Load - -
SO grs. ISO grs. 2S0 grs
Meta Terphenyl Para Terpheny'l Carnauba Wax Candelllla Wax Ortho Terphenyl
Cereslne Wax 95% Paraffin & 98# Paraffin & Paraffin Wax Montan Wax
Terphenyl Terphenyl
Terphenyl Terphenyl
0
0 0 0
1.3 3-7
7-3 9-3 10.7 11.7 14.3 15.0
0 0
2.3 3-3 4.0
12.3 - 18.0
15-7 21.0 26.0
23.3 28.7
2.3 3-3 4.7 .4.7 10.7 18.0
25.3 26.0
29.7 32.7 31.3 37-3
Aged 24 hours Unaged
28.7 60.0
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PENETRATION TESTS (A .S .T .M .-D-5-25) ON
MIXTURES OF MIXED ISOMERIC TERPHENYL AND SOFT PARAFFIN
Composition of Mixture
% Mixed
%
Iso.Ter, Paraffin
Approx.
Temp. For 1st Crystals
Apparent Segregatlon
Penetration Cm x 10g in 60 sec. @ 25C.
50-jS..- .150 K- ISO.,JB-
100 0
143 Yes
75 25
140 ' No
50 50
"135
No
25 0
75 100
, 12502
: o No
*38 80 161
# 8 21 28 11 27 43 17 42 56 26 58 109 16 42 53
* Soft Portion # Hard Portion
Solubility
'
Solvent .
'
3A Alochol ......................................................... Turpentine .........................................................
Fuel Oil, API 36 SUS 100F.-38 _____ Benzene ................................................................ Trlchlorobenzene ........................................... Stoddard's Solvent .......................... ; Nitromethane .................................................... Nitroethane .................................................. .. 1-Nltropropane ................................................ 2-Nitropropane ................................................
Ors. Mixed Isomeric Terphenyl per 100 ml.
of solvent
25*075C.
0.008 1.2
1.66 6.0 9.0 0.7 0.2 2.0 2.0 2.0
0.6 9.0
8.4 42.0 45.0
8.0 7.5 15.O 20.0 20.0
(See graphs of solubilities attached.)
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Solubility - 20% Solution of Mixed Isomeric Terohenyl
Solvent
Minimum Temp. C. for complete solution (20 gms. Mixed Isomeric Terphenyl and 80 gms.
solvent)_________
Tetrachloroethane .................................... Dloxane ...........................................................
Orthodlchlorobenzene ............................. Benzoyl chloride ......................................
Monochlorobenzene .................................... Trichlorobenzene (mixed Isomers) .. Benzyl Chloride ......................................... Benzene ......... ................................................ Trichloroethylene .................................... Pyridine ......................................................... Chloronaphthalene ....................................
Furfural .................................. ...................... Xylene ............................................................. Bromonaphthal.ene ....................................... Diphenyloxide ......... ...... . ..'......................
53 58 58
60
60 60 62 64 64
66
72 72
72 73 76
Coefficients of Thermal Expansion of Mixed Isomeric Terphenvl
25-60C. 60-77C. 25-77C.
Coefficient of Cubical Expansion
Vol./unit vol./deg. C.
8.3 x 10--jf 11.5 x 10-7
9.4 x 10-4
Coefficient of Linear Expansion
Length/unit length/deg. C
2.8 x 10-lf 3.8 x 10-2 3.1 x 10-^
#**
MONSANTO CHEMICAL COMPANYSt. Louis 4, Mo.
New York-Chlcago-Boston-Birmlngham-Charlotte-Cincinnati-Cleveland Detroit-Phlladelphla-Los Angeles-San Francisco-Montreal
POBsMAG 1M
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