-
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Form No: 066-00009-601QRPUC-2179
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Triethylene Glycol
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Union Carbide Corporation Triethylene Glycol Product Guide
IMPORTANTUnion Carbide Corporation has compiled the information
contained herein from what it believes are authorative sources and
believes that it is accurate and factual as of the date printed. It
is offered solely as a convenience to its customers and intended
only as a guide concerning the products mentioned. Since the
usersproduct formulation, specific use application, and conditions
of use are beyond Union Carbides control, Union Carbide makes no
warranty or representationregarding the results that may be
obtained by the user. It shall be the responsibility of the user to
determine the suitability of any products mentioned for the
usersspecific application. This information is not to be taken as a
warranty or representation for which Union Carbide assumes legal
responsibility nor as permission topractice any patented invention
without a license.
2000 Union Carbide Corporation.
-
Table of Contents:2 Introduction
3........Table 1: Applications
4 Properties4........Table 2: Physical Properties of Triethylene
Glycol5........Table 3: Solubilities of Various Materials in
Triethylene Glycol6........Table 4: Triethylene Glycol
Compatibility with Elastomeric Materials7........Table 5: Constant
Boiling Mixtures of Triethylene Glycol8........Figure 1: Freezing
Points of Aqueous Triethylene Glycol Solutions9........Figure 2:
Boiling Points vs. Composition of Aqueous Triethylene Glycol
Solutions at
Various Pressures10......Figure 3: Condensation Temperatures vs.
Composition of Aqueous Triethylene Glycol
Solutions at Various Pressures11......Figure 4: Vapor Pressures
of Triethylene Glycol at Various Temperatures12......Figure 5:
Vapor Pressures of Aqueous Triethylene Glycol Solutions at
Various
Temperatures13......Figure 6: Specific Gravities of Aqueous
Triethylene Glycol Solutions14......Figure 7: Viscosities of
Aqueous Triethylene Glycol Solutions15......Figure 8: Specific
Heats of Aqueous Triethylene Glycol Solutions16......Figure 9:
Thermal Conductivities of Aqueous Triethylene Glycol
Solutions17......Figure 10: Dew Points of Aqueous Triethylene
Glycol Solutions at Various Contact
Temperatures18......Figure 11: Comparative Hygroscopicities of
Various Glycols at 70F (21C)19......Figure 12: Refractive Indices
of Pure Triethylene Glycol20......Figure 13: Refractive Indices of
Aqueous Triethylene Glycol Solutions at 77F (25C)21......Figure 14:
Surface Tensions of Pure Triethylene Glycol22......Figure 15:
Surface Tensions of Aqueous Triethylene Glycol Solutions at 77F
(25C)23......Figure 16: Electrical Conductivities of Aqueous
Triethylene Glycol Solutions
24 Health Effects
24 Environmental Information
25 Specifications
26 FDA and EPA Status
27 Storage and Handling
27 Shipping
28 Product Safety
29 Emergency Service
30 Sales Office
Union Carbide Corporation Triethylene Glycol Product Guide
1
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IntroductionPrecautions:Carefully review the current Material
Safety DataSheet.
Not recommended for use as an ingredient in foodor
beverages.
Union Carbide . . . Your best sourcefor Triethylene
GlycolQualityUnion Carbide is the worlds largest producer
ofethylene oxide and glycols, with over 70 years ofexperience in
their manufacture, marketing, andresearch and development. The
uniformimplementation of statistical process control at allour
plants enables us to consistently deliver thehigh-quality product
you require. Our totalapproach to Quality and Quality Systems
iscontinuously improved to ensure that our facilitiesmeet the
requirements for registration to thestringent ISO 9002 series of
standards.
Optimum performance demands a quality product,and that is what
we deliver. Our vast distributionsystem of plants, terminals,
warehouses, tankers,barges, tank cars and trucks helps to ensure
yourdelivery of triethylene glycol when and where youneed it.
Service . . .For solutions to problems or answers to
questions,take advantage of Union Carbides technicalservice and
support, available through trainedsales representatives as well as
a skilled staff fromour Research and Development Department.
Yourorder of triethylene glycol will be processedexpertly and
quickly when you place a call to oneof our many helpful customer
servicerepresentatives. (See page 30.)
Triethylene Glycol Formula
C6H14O4Molecular Formula
HOCH2CH2OCH2CH2OCH2CH2OH
CAS Registry Number 112-27-6
Synonyms Glycol-bis(hydroxyethyl) ether
2,2-[1,2-ethanediylbis(oxy)] bis-ethanolTriglycolTEGT3EG TriEG
Triethylene glycol is a transparent, colorless, low-volatility,
moderate-viscosity, water-soluble liquid.Under normal conditions,
there is no detectableodor; under high vapor concentrations, a
slightlysweet odor may be detected. It is completelymiscible with
water and many organic liquids.Triethylene glycol has properties
similar to otherglycols and may be used preferentially
inapplications requiring a higher boiling point,higher molecular
weight or lower volatility thandiethylene glycol.
The hydroxyl groups on triethylene glycol undergothe usual
alcohol chemistry giving a wide varietyof possible derivatives.
Hydroxyls can beconverted to aldehydes, alkyl halides,
amines,azides, carboxylic acids, ethers, mercaptans,nitrate esters,
nitriles, nitrite esters, organic esters,peroxides, phosphate
esters and sulfate esters.
Triethylene glycol may be used directly as aplasticizer or
modified by esterification. Thesolubility properties of triethylene
glycol areimportant for many applications. End-uses fortriethylene
glycol are numerous. (See Table 1.)
Union Carbide Corporation Triethylene Glycol Product Guide
2
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Table 1: Applications
Hygroscopicity Dehydration of natural gasMoisturizing and
plasticizing cork, adhesives
Plasticizer Safety glass Separation membranes (silicone rubber,
polyvinyl
acetate, cellulose triacetate) Ceramic materials (resistant
refractory plastics,
molded ceramics)
Low Volatility Gas dehydration Explosives
Solvent Resin impregnants and other additives Steam-set printing
inks Aromatic and paraffinic hydrocarbons separations Cleaning
compounds Polyethylene terephthalate production equipment
cleaning Cyanoacrylate and polyacrylonitrile
Chemical Intermediate Unsaturated polyester resin Various resins
of the alkyd type used as laminating
agents in adhesives Esterification products used in
plasticizer
intermediates for nitrocellulose lacquers and vinyl resins
Polyester polyols for polyurethanes Thermoplastic polyurethanes
Silcone compounds Emulsifiers Lubricants
Freezing Point Depression Heat transfer fluids
Union Carbide does not recommend triethylene glycol or other
higherglycols for the following uses or applications: As an
ingredient in artificial smoke or theatrical fog As an ingredient
in drugs or health aids taken by mouth As an ingredient in fuel for
warming foods or in fuel for heating an enclosed space where
personnel
exposure is possible As a direct food additive in foods or
beverages In any use in or in the preparation of a tobacco product
In heated mixtures with strong acids or bases where explosive
decomposition may occur In applications above the thermal
decomposition temperatures.
Union Carbide Corporation Triethylene Glycol Product Guide
3
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PropertiesTable 2: Physical Properties of Triethylene
GlycolDetermined on purified samples of Triethylene GlycolProperty
Scientific Units Common UnitsAutoignition Temperature 349C 660F
Boiling Point at 760 mmHg 288.0C 550.4F
Boiling Point/ Pressure (750 - 770 mmHg) 0.0073C/kPa 0.055C/mmHg
Critical Pressure 3,313.3 kPa 24,852 mmHg
Critical Specific Volume 0.443 L/gmol 7.10 ft3/lbmol
Critical Temperature 440C 824F
Dielectric Constant 23.69 23.69
Electrical Conductivity 0.20 micromhos/m 0.002 micromhos/cm
Evaporation Rate (Butyl Acetate = 1)
-
Table 3: Solubilities of Various Materials in Triethylene
GlycolSolubility, g/100 ml of Triethylene Glycol at 25C Acetone
Completely Soluble Lard Oil Insoluble
Animal Glue (Dry) Slightly Soluble Linseed Oil Insoluble
Benzene Completely Soluble Methanol Completely Soluble
Carbon Tetrachloride 40.6 Monoethanolamine Completely
Soluble
Castor Oil 0.3 Nitrocellulose Completely Soluble
Cellulose Acetate Completely Soluble oo -Dichlorobenzene
Completely Soluble
Chlorobenzene Completely Soluble Olive Oil Insoluble
Coconut Oil Insoluble Paraffin Oil Insoluble
Cottonseed Oil Insoluble Phenol Completely Soluble
Dextrin Completely Soluble Pine Oil Completely Soluble
Dextrin (10% in water) Insoluble Rosin 5.0
Dibutyl Phthalate 19.8 Shellac Slightly Soluble
Dichloroethyl Ether Completely Soluble Soya Bean Oil
Insoluble
Diethanolamine Completely Soluble Sperm Oil Insoluble
Ethyl Ether 20.4 Tall Oil 10.1
Ethylene Glycol Stearate Slightly Soluble Tetrachloroethylene
17.7
Gum Damar Slightly Soluble Toluene 33.0
Heptane Slightly Soluble Tung Oil Insoluble
Hydrous Wool Fat Slightly Soluble Turkey Red Oil 12.3
Kauri Gum Slightly Soluble Urea 31.0
Union Carbide Corporation Triethylene Glycol Product Guide
5
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Table 4: Triethylene Glycol Compatibility with Elastomeric
Materials
Temperature
Material 25C (77F) 80C (176F) 160C (320F)Adiprene L-100 Good
Poor Poor
Black Rubber 3773 Good Poor Poor
Buna N (or 25) Good Good
Buna S Good Fair Poor
Butyl Rubber Good Good
Compressed Asbestos Good Good Fair
EPDM Good Good Good
EPR Rubber Good Good Good
Hycar D-24 Good Fair
Hypalon Good Poor Poor
Kalrez Good Good Good
Natural Rubber Gum Good Poor Poor
Neoprene 7797 Good Fair
Red Rubber Number 107 Good Poor Poor
Saraloy 300 Good Poor Poor
Silicone No. 65 Good Good
Thiokol 3060 Good Poor Poor
Viton A Good Good Poor
Union Carbide Corporation Triethylene Glycol Product Guide
6
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Table 5: Constant Boiling MixturesComponents Azeotrope
Boiling Boiling RelativeSpecific Point at Point at In In In
VolumeGravity 760 mmHg, 760 mmHg, Azeo- Upper Lower of Layersat
20/20C C C trope Layer Layer at 20C, %
Triethylene Glycol 1.1255 288.0 271.5 35 (c) (c) (c)Acenaphthene
277.9 65 (c) (c) (c)
Triethylene Glycol (5mmHg) 1.1255 145.5(a) Azeo(a) 28 15 60 U
72Benzyl Ether 72 85 40 L 28
Triethylene Glycol 1.1255 288.0 280.0 40 (c) (c) (c)Benzyl
Phenyl Ether 286.5 60 (c) (c) (c)
Triethylene Glycol 1.1255 288.0 NoneBiphenyl 256.1
Triethylene Glycol (3mmHg) 1.1255 135.3(a) None(a)
Diethylene Glycol 1.1184 108.0(a)
Triethylene Glycol 1.1255 288.0 263.0 20 (c) (c)
(c)Diphenylmethane 263.0 60 (c) (c) (c)
Triethylene Glycol 1.1255 288.0 275.5 42 (c) (c)
(c)1,2-Diphenylmethane 284.5 58 (c) (c) (c)
Triethylene Glycol 1.1255 288.0 58 (c) (c) (c)Ethyl Phthalate
298.5
Triethylene Glycol 1.1255 288.0 261.4 14 (c) (c) (c)Isoamyl
Benzoate 262.0 86 (c) (c) (c)
Triethylene Glycol 1.1255 288.0 ReactsIsoamyl Oxalate 268.0
Triethylene Glycol 1.1255 288.0 269.0 30 (c) (c) (c)Isoamyl
Salicylate 277.5 70 (c) (c) (c)
Triethylene Glycol 1.1255 288.0 277.0 33 (c) (c) (c)Methyl
Phthalate 283.2 67 (c) (c) (c)
Triethylene Glycol 1.1255 288.0 286.0 80 (c) (c) (c)Phenyl
Benzoate 315.0 20 (c) (c) (c)
Triethylene Glycol 1.1255 288.0 258.7 3 (c) (c) (c)Phenyl Ether
1.0677(b) 259.0 97 (c) (c) (c)
Triethylene Glycol (4mmHg) 1.1255 141.0(a) None(a)
Phenyl Ether 1.0677(b) 102.0(a)
Triethylene Glycol 1.1255 288.0 NoneWater 1.0000 100.0
Triethylene Glycol (10 mmHg) 1.1255 161.0(a) None(a)
Water 1.0000 11.0(a)
(a) At the pressure investigated; (b) At 30/20C; (c) Data not
available
Union Carbide Corporation Triethylene Glycol Product Guide
7
Composition,% by Wt at 20C
-
Union Carbide Corporation Triethylene Glycol Product Guide
8
Figure 1: Freezing Points of Aqueous Triethylene Glycol
Solutions
Tem
pera
ture
, C
10
0
-10
-20
-30
-40
-50
Tem
pera
ture
, F
50
40
30
20
10
0
-10
-20
-30
-40
-50
-60
Triethylene Glycol, Percent by Weight in Water
0 10 20 30 40 50 60 70 80 90 100
-
Union Carbide Corporation Triethylene Glycol Product Guide
9
Figure 2: Boiling Points vs. Composition of Aqueous Triethylene
Glycol Solutions at Various Pressures
Tem
pera
ture
, C
350
300
250
200
150
100
50
Tem
pera
ture
, F
140
180
220
260
300
340
380
420
460
500
540
580
620
660
Triethylene Glycol, Percent by Weight in Water
0 10 20 30 40 50 60 70 80 90 100
2 Atmospheres Gauge
760 mmHg
300 mmHg
-
Union Carbide Corporation Triethylene Glycol Product Guide
10
Figure 3: Condensation Temperatures vs. Composition of Aqueous
Triethylene Glycol Solutions at Various Pressures
Tem
pera
ture
, C
350
300
250
200
150
100
50
Tem
pera
ture
, F
140
180
220
260
300
340
380
420
460
500
540
580
620
660
Triethylene Glycol, Percent by Weight in Water
0 10 20 30 40 50 60 70 80 90 100
2 Atmosph
eres Gaug
e
760 mmHg
300 mmHg
-
Union Carbide Corporation Triethylene Glycol Product Guide
11
Figure 4: Vapor Pressures of Triethylene Glycol at Various
Temperatures
Triethylene Glycol Antoine Constants for Calculating Vapor
Pressure3-Constant Equation (Temperature Range = 150 - 300C)
A=7.6302007 Range = 150 - 300CB=2156.4581 P = mm HgC=165.92442 T
= CLog10 (P) = A B/(T + C)
5-Constant Equation (Temperature Range = 360.15 -
712.51K)A=95.5205 Range = 360.15 - 712.51KB=12834.7 P = PaC=0.0 T =
KelvinD=9.66752E=3.0015 x 10-29N=10ln(P) = A B/(T + C) + D(ln(T)) +
ETN
Temperature, F 220 240 280 320 360 400 440 480 560 640
Vapo
r Pre
ssur
e, m
mH
g
1
2
34
68
10
20
3040
6080
100
200
300400
600800
1000
Temperature, C
100 120 140 160 180 200 240 280 320 360
Triethylene GlycolAntoine Constants A=7.6302007 B=2156.4581
C=165.92442
Log(P)=AB/(t+C)mm Hg, Log10, C
-
Union Carbide Corporation Triethylene Glycol Product Guide
12
Figure 5: Vapor Pressures of Aqueous Triethylene Glycol
Solutions at Various Temperatures
Triethylene Glycol Antoine Constants for Calculating Vapor
Pressure3-Constant Antoine EquationLog10 (P) = A B/(T + C)
P = mm Hg, T = C
TriEG, Wt% A B C 0 7.959199 1663.545 227.57550 7.922294 1671.501
228.03170 7.878546 1681.363 228.23780 7.837076 1697.006 228.76990
7.726126 1728.047 229.82395 7.620215 1806.257 236.22797 7.495349
1841.522 238.04898 7.404435 1881.474 240.66699 7.211145 1926.114
242.79999.5 7.042989 1970.802 242.865100 7.472115 2022.898
152.573
Freezing Point Curves
-40 -20 0 20 40 60 80 100 130 1600.10.2
0.40.6
1
2
46
1020
4060
100200
400600
1,000
2,000
4,0006,000
10,000
Temperature, C
Temperature, F
Vapo
r P
resu
re, m
mH
g
Trie
thyl
ene
Gly
col,
Per
cent
by
Wei
ght i
n W
ater
-40 -20 0 20 40 80 120 160 200 240 300
0 5070909597989999.5
100
80
-
Union Carbide Corporation Triethylene Glycol Product Guide
13
Figure 6: Specific Gravities of Aqueous Triethylene Glycol
Solutions
Specific Gravity at T/60F = A + Bx + Cx2x = Weight % Triethylene
Glycol
T, F A B C -50 1.0502 1.8268E-3 -5.2009E-60 1.0319 1.7466E-3
-4.8304E-650 1.0121 1.5247E-3 -2.8794E-6100 0.9920 1.7518E-3
-5.4955E-6150 0.9804 1.5410E-3 -4.3884E-6200 0.9627 1.4068E-3
-3.5089E-6250 0.9413 1.3205E-3 -2.7991E-6300 0.9177 1.2511E-3
-2.0848E-6
Freezing Point Curves -50F
0F
50F
100F
150F
200F
250F
300F
0 10 20 30 40 50 60 70 80 90 1000.90
0.92
0.94
0.96
0.98
1.00
1.02
1.04
1.06
1.08
1.10
1.12
1.14
1.16
1.18
Triethylene Glycol, Percent by Weight in Water
App
aren
t Spe
cific
Gra
vity
, T/6
0F
-
Union Carbide Corporation Triethylene Glycol Product Guide
14
Figure 7: Viscosities of Aqueous Triethylene Glycol
Solutions
Viscosity, Centiposies (cP) = A x 10Bxx = Weight % Triethylene
Glycol
T, F A B0 1.53010 2.9967E-250 1.09200 1.9348E-2100 0.58916
1.5763E-2150 0.37045 1.3481E-2200 0.27371 1.1731E-2250 0.18759
9.7064E-3300 0.14026 8.1319E-3
Freezing Point Curves
0F
50F
100F
150F
200F
250F
300F
0 10 20 30 40 50 60 70 80 90 1000.1
0.2
0.40.6
1
2
46
10
20
4060
100
200
400600
1000
Triethylene Glycol, Percent by Weight in Water
Vis
cosi
ty, C
entip
oise
s
-
Union Carbide Corporation Triethylene Glycol Product Guide
15
Figure 8: Specific Heats of Aqueous Triethylene Glycol
Solutions
Specific Heat = A + BT+CT2T = Temperature, C
TriEG, Wt% A B C0 1.00540 -2.7286E-4 2.9143E-610 0.96705
-2.7144E-5 2.4952E-620 0.92490 2.0429E-4 2.4524E-630 0.88012
4.3000E-4 1.6952E-640 0.83229 6.2286E-4 1.3714E-650 0.78229
7.9286E-4 1.0857E-660 0.72200 9.4000E-4 8.0000E-770 0.66688
1.0871E-3 4.7620E-780 0.60393 1.2043E-3 2.8571E-790 0.53888
1.2800E-3 1.9048E-7100 0.48614 1.3929E-3 -5.7140E-8
Freezing Point Curves
-50 0 50 100 150 2000.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
Temperature, C
Temperature, F
Spe
cific
Hea
t, B
tu/l
b/F
Trie
thyl
ene
Gly
col,
Per
cent
by
Wei
ght i
n W
ater
-40 0 40 80 120 160 200 240 280 320 360
0 102040506070
80
90
100
30
-
Union Carbide Corporation Triethylene Glycol Product Guide
16
Figure 9: Thermal Conductivities of Aqueous Triethylene Glycol
Solutions
Thermal Conductivity = A + BTT = Temperature, C
TriEG, Wt% A B0 0.33667 7.1667E-410 0.31000 6.0000E-420 0.29000
4.0000E-430 0.27200 2.0000E-440 0.25133 3.3333E-550 0.22767
3.3333E-560 0.20933 -1.6667E-470 0.18800 -2.0000E-480 0.17267
-2.8333E-490 0.15567 -2.8333E-4100 0.14133 -3.1667E-4
Freezing Point Curves
-20 0 20 40 60 80 100 120 140 160 180 2000.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
Temperature, C
Temperature, F
Ther
mal
Con
duct
ivity
, Btu
(ft)
/hr
(ft2
) F
Trie
thyl
ene
Gly
col,
Per
cent
by
Wei
ght i
n W
ater
0 40 80 120 160 200 240 320 360280
0
20
10
40
30
50
60
70
8090100
-
Union Carbide Corporation Triethylene Glycol Product Guide
17
Figure 10: Dew Points of Aqueous Triethylene Glycol Solutions
atVarious Contact Temperatures
Dew or Frost Point = A + BT T = Temperature, C
TriEG, Wt% A B50 -3.0308 1.0105070 -7.0009 1.0161080 -10.745
1.0116090 -17.923 0.9818795 -25.252 0.9301998 -34.675 0.8559899
-41.419 0.8015099.5 -47.195 0.73263
Freezing Point Curves
-30 -20 -10 0 10 20 30 40 50-50
-40
-30
-20
-10
0
10
20
30
40
50
60
Contact Temperatures of Solution, C
Contact Temperatures of Solution, F
Fros
t Poi
nt,
CD
ew P
oint
, C
Fros
t Poi
nt,
FD
ew P
oint
, F
-20 0 20 40 60 80 100 120
99.599
98
95
7050
Triethylene Glycol,Percent by Weightin Water
9080
-50-40-30-20-100102030405060708090100110120130140
-
Union Carbide Corporation Triethylene Glycol Product Guide
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Figure 11: Comparative Hygroscopicities of Various Glycols at
70F (21C)
25 30 35 40 45 50 55 60 65 70 755
678
10
60
20
30
40
50
7080
100
Percent Relative Humidity
Per
cent
Wat
er, (
Bas
ed o
n D
ry H
umec
tant
at E
quili
briu
m)
Diethylene Glycol
Ethylene Glycol
Propylene Glycol
Dipropylene Glycol
Triethylene Glycol
-
Union Carbide Corporation Triethylene Glycol Product Guide
19
Figure 12: Refractive Indices of Pure Triethylene Glycol
Refractive Index = 1.4626 0.000340T T = Temperature, C
20 22 24 26 28 30 32 34 36 38 401.446
1.448
1.450
1.452
1.454
1.456
1.458
1.460
Temperature, C
Rea
ctiv
e In
dex
-
Union Carbide Corporation Triethylene Glycol Product Guide
20
Figure 13: Refractive Indices of Aqueous Triethylene Glycol
Solutions at 77F (25C)
Refractive Index, 77F (25C) = 1.3326 + 0.0012403 x x = Weight %
Triethylene Glycol
0 10 20 30 40 50 60 70 80 90 1001.30
1.32
1.34
1.36
1.38
1.40
1.42
1.44
1.46
1.48
1.50
Triethylene Glycol, Percent by Weight in Water
Rea
ctiv
e In
dex
-
Union Carbide Corporation Triethylene Glycol Product Guide
21
Figure 14: Surface Tensions of Pure Triethylene Glycol
Surface Tension, dynes/cm = 47.330 0.088T T = Temperature, C
0 50
40 80 120 160 200 240 280
100 15034
36
38
40
42
44
46
Temperature, C
Temperature, F
Sur
face
Ten
sion
, dyn
es/c
m
-
Union Carbide Corporation Triethylene Glycol Product Guide
22
Figure 15: Surface Tensions of Aqueous Triethylene Glycol
Solutions at 77F (25C)
0 10 20 30 40 50 60 70 80 90 10030
40
50
60
70
Triethylene Glycol, Percent by Weight in Water
Sur
face
Ten
sion
, dyn
es/c
m
80
-
Union Carbide Corporation Triethylene Glycol Product Guide
23
Figure 16: Electrical Conductivities of Aqueous Triethylene
Glycol Solutions
Note: The quality of water used for dilution can significantly
affectelectrical conductivity.
0 10 20 30 40 50 60 70 80 90 1000
2
4
6
8
10
12
Triethylene Glycol, Percent by Weight in Water
Ele
ctric
al C
ondu
ctiv
ity, m
icro
mho
ms/
cm
-
Union Carbide Corporation Triethylene Glycol Product Guide
24
Health EffectsTriethylene glycol is slightly toxic. See the
latest Material Safety Data Sheet for the most current
exposurelimits, health, first aid, and toxicology information.
Environmental InformationTriethylene glycol has been shown to be
relatively nontoxic to bacteria and aquatic life. See the
latestMaterial Safety Data Sheet for current information.
Biodegradation The biodegradability of triethylene glycol was
evaluated by extended-term biochemical oxygen demand(BOD) tests.
Using unacclimated biomass, the BOD tests indicated that
triethylene glycol is slowlybiodegraded. However, with acclimation
of the microorganisms, as in a wastewater treatment
plant,biodegradation increases to a rapid rate.
-
Union Carbide Corporation Triethylene Glycol Product Guide
25
SpecificationsSpecification Regular Grade Gas Treating Grade
High Purity GradeMinimum Purity, 99.0 99.0 99.5%wt
Maximum Acidity, %wt as Acetic Acid 0.01 0.01 0.01
pH, 50% Solution in Water 6.0 to 8.0
Maximum Water, 0.10 0.10 0.10%wt
Maximum Ethylene Glycol, %wt 0.10 0.10
Maximum Diethylene Glycol, %wt 0.50 0.10
Maximum Color, Platinum-Cobalt Units 25 25 25
Suspended Matter Substantially Free Substantially Free
Substantially Free
Supplemental Quality Description
Description Regular Grade Gas Treating Grade High Purity
GradeSpecific Gravity at 20/20C 1.124 to 1.127 1.124 to 1.127 1.124
to 1.127
Distillation at Initial Boiling Initial Boiling Will distill
entirely760 mmHg Point: 278C maximum Point: 278C maximum within a
15C range
95 ml: 295C maximum 95 ml: 295C maximum between 280 Dry Point:
300C maximum Dry Point: 300C maximum and 297C
Water Solubility Completely miscible
Refractive Index, nDat 20C 1.4549 to 1.4565
-
Union Carbide Corporation Triethylene Glycol Product Guide
26
FDA and EPA Status(a)
FDA (21CFR) Permitted Use 175.105 Component of adhesives used in
articles intended for packaging, transporting, or
holding food.
175.300 Plasticizer in resinous and polymeric coatings applied
as a continuous film or enamel over a metal substrate or applied as
a continuous film or enamel to any suitable substrate provided that
the coating serves as a functional barrier between the food and the
substrate and is intended for repeated food-contact use.
Plasticizer in can side-seam cement. Component of certain polyester
resins.
175.380 Component of xylene-formaldehyde resins condensed with
4,4-isopropylidene diphenol-epichlorohydrin epoxy resins.
175.390 Component of zinc-silicon dioxide matrix coatings used
as food-contact surfaces for bulk reusable containers intended for
storing, handling, and transporting food.
176.170 Component of the coated or uncoated food contact surface
of paper and paperboard in 176.180 contact with fatty, aqueous, and
dry food.
177.1200 Constituent of the base sheet cellophane or of coatings
applied to cellophane to impart desired technological
properties.
177.1210 Component of closure-sealing gaskets and overall discs
for food containers.
177.1240 Component of 1,4-cyclohexylene dimethylene
terephthalate and 1,4-cyclohexylene dimethylene isophthalate
copolymers.
177.1400 Constituent of the base sheet or of coatings applied to
water-insoluble hydroxyethyl-cellulose film used for packaging
food.
177.1630 Component of polyethylene terephthalate film used for
packaging, transporting, or holding food.
178.3740 Plasticizer in polymeric food-packaging
materials(b).
178.3910 Components of surface lubricants used in the drawing,
stamping, and forming of metallic articles from rolled foil or
sheet stock by further processing(b).
EPA (40CFR) Permitted Use 180.1001(d) Inert ingredient
(deactivator) for use in formulations applied to growing crops only
up
to the time of harvest.
(a) For complete information on conditions of use, refer to the
applicable section in the Code of Federal Regulations.(b) This
application requires triethylene glycol containing a maximum of 0.1
wt % diethylene glycol. Triethylene Glycol, High
Purity Grade, meets this FDA requirement.
The foregoing is provided for your convenience. The FDA and/or
other Federal and state regulatory agencies may haveadditional
requirements and/or may periodically amend requirements. It is your
obligation to be familiar with and comply withall laws, rules, and
regulations applicable to your use of triethylene glycol.
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Storage and Handling This information is offered as a guide in
planningbulk storage facilities for glycols. Glycols aregenerally
considered to be stable, non-corrosivechemicals with high flash
points. Under ordinaryconditions, all of these chemicals can be
stored inmild steel vessels. For long-term storage, or if traceiron
contamination and the development of colorare objectionable in any
of the glycols, a storagevessel lined with a baked-phenolic resin,
an air-drying epoxy-phenolic resin, or a vinyl resin or astainless
steel or aluminum tank is suggested. Zincor galvanized iron is not
recommended, andcopper or copper alloys may cause
productdiscoloration.
It is not general practice to use an inert gas in thevapor space
of glycol storage tanks, because allchemicals in this family have
high boiling pointsand the vapors in the tanks are relatively
non-flammable. However, if extremely low watercontent is required,
consistent with a long storageperiod, a nitrogen blanket can be
used to excludeatmospheric moisture and air. Blanketing
withnitrogen will also minimize low-level oxidation, ifnecessary
for the desired application. The inertgas prevents air oxidation in
order to maintainproduct within acidity specifications.
Increasedacidity enhances iron pickup from steel
vessels.Alternatively, a desiccant unit can be installed onthe tank
vent line to dry incoming air.
If above ground outside storage is planned, it maybe necessary
to install provisions for heating tanksand lines. Many glycols have
a moderately highfreezing point or become relatively viscous
atsevere winter temperatures. However, excessivetemperature can
cause undesirable degradation ofglycols. Automatic controls are
suggested to limitthe temperature of the contents to 120F
(49C).
In cold climates, it is generally desirable to makeprovisions
for draining the pump and the transferlines if they are outside the
building. If this is notfeasible, it may be necessary to insulate
and steamtrace or otherwise heat the transfer lines toprevent
freezing of the product. Care must be
taken in such an application, because continuedexposure of
glycols to high temperatures, greaterthan 120F (49C), will result
in productdegradation. Transfer piping of mild steel isgenerally
used.
Shipping DataShipping Data for Triethylene GlycolWeight per
Gallon at 20C 9.36 lb
Coefficient of Expansion at 55C 0.00072
Flash Point, Pensky-Martens Closed Cup 350F
Net Contents and Type of Container
1-Gallon Tin Can 9.0 lb
5-Gallon DOT 17E, Pail 47 lb
55-Gallon DOT 17E, Drum 522 lb
Triethylene Glycol is not regulated by the U.S.Department of
Transportation; therefore, it doesnot have a DOT Shipping Name,
HazardClassification, DOT Warning Label, orIdentification
Number.
Union Carbide Corporation Triethylene Glycol Product Guide
27
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Product SafetyWhen considering the use of triethylene glycol
inany particular application, review and understandUnion Carbides
latest Material Safety Data Sheetfor the necessary safety and
health information sothat the use you intend can be
accomplishedsafely. For Material Safety Data Sheets and
otherproduct safety information on Union Carbideproducts, contact
the Union Carbide sales officenearest you. Before handling any
other productsmentioned in this booklet, you should obtain
theavailable product safety information from thesuppliers of those
materials and take the necessarysteps to comply with all
precautions for the safeuse of triethylene glycol.
No chemical should be used as or in a food, drug,medical device
or cosmetic, or in a productprocess in which it may contact a food,
drug,medical device, or cosmetic until the user hasdetermined the
suitability and legality of the use.Since government regulations
and use conditionsare subject to change, it is the users
responsibilityto determine that this information is appropriateand
suitable under current, applicable laws andregulations.
Union Carbide requests that the customer read,understand, and
comply with the informationcontained in this publication and the
currentMaterial Data Safety Sheet(s). The customershould furnish
the information in this publicationto its employees, contractors,
and customers, orany other users of the product(s), and request
thatthey do the same.
Union Carbide Corporation Triethylene Glycol Product Guide
28
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Union Carbide Corporation Triethylene Glycol Product Guide
29
Emergency ServiceUnion Carbide maintains an around-the-clock
emergency service for its products. The ChemicalManufacturers
Association (CHEM/TREC), Transportation Canada (CANUTEC) and the
ChemicalEmergency Agency Service maintain an around-the-clock
emergency service for all chemical products.
Location Union Carbide Products All Chemical ProductsMainland
United States Phone Union Carbide HELP: Phone CHEMTREC:and Puerto
Rico (800) UCC-HELP (toll-free), (800) 424-9300 (toll-free)
i.e., (800) 822-4357
Alaska and Hawaii Phone Mainland United States: Phone
CHEMTREC:(304) 744-3487(collect) (800) 424-9300 (toll-free)
Canada Phone Union Carbide: Phone CANUTEC:(514)-640-6400
(collect) (613) 996-6666 (collect)
Continental Europe, Phone BIG (Geel-Belgium): Phone CHEMTREC
(United States):Middle East, North and (32) 0-14-58-45-45 (703)
527-3887 (collect)Central Africa
United Kingdom and Ireland Phone National Chemical Phone
CHEMTREC (United States):Emergency Center (Culham-UK): (703)
527-3887 (collect)(44)(0) 1865-407-333
Latin America, Asia/Pacific, Phone United States: Phone CHEMTREC
(United States):South Africa and any other (304) 744-3487 (collect)
(703) 527-3887 (collect)location, worldwide
If you are at sea Radio U.S. Coast Guard, who can directly
contact Union Carbide HELP (800) 822-4357 (toll-free) or CHEMTREC
(800) 424-9300 (toll-free)
DO NOT WAIT. Phone if in doubt. You will be referred to a
specialist for advice.
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Sales OfficeFor additional information, contact our customer
center:
Union Carbide Corporation10235 West Little York RoadSuite
300Houston, TX 77040Phone: 1-800-568-4000 or 1-713-849-7000
Union Carbide Corporation Triethylene Glycol Product Guide
30
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Union Carbide Corporation39 Old Ridgebury RoadDanbury, CT
06817-0001
9/00UC-2165A P0-0319
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