All About C6H14O4

5/23/2018 All About C6H14O4

1/33

Triet

hylen

e

Gly

col


2/33

i

Table ofContents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Quality, Service, and Product Information . . . . . . . . . . . . . . . . . . . . . 1

Table 1 Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Product Stewardship Guidelines and Principles . . . . . . . . . . . . . . . . . . 3

Non-supported applications of Dow-manufactured EG, DEG,TEG,TETRA,

and By-Products of Glycol Manufacturing. . . . . . . . . . . . . . . . . . . . 3

Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Table 2 Physical Properties of Triethylene Glycol . . . . . . . . . . . . . . . 5

Table 3 Solubilities of Various Materials in Triethylene Glycol . . . . . . . . 6

Table 4 Triethylene Glycol Compatibility with Elastomeric Materials . . . . . 7

Table 5 Constant Boiling Mixtures of Triethylene Glycol . . . . . . . . . . . 8

Figure 1 Freezing Points of Aqueous Triethylene Glycol Solutions . . . . . . . 9

Figure 2 Boiling Points vs. Composition of Aqueous Triethylene

Glycol Solutions at Various Pressures . . . . . . . . . . . . . . . . 10

Figure 3 Condensation Temperatures vs. Composition of Aqueous

Triethylene Glycol Solutions at Various Pressures. . . . . . . . . . 11

Figure 4 Vapor Pressures of Triethylene Glycol at Various Temperatures . . 12

Figure 5 Vapor Pressures of Aqueous Triethylene Glycol Solutions at

Various Temperatures . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 6 Specific Gravities of Aqueous Triethylene Glycol Solutions . . . . . 14

Figure 7 Viscosities of Aqueous Triethylene Glycol Solutions. . . . . . . . . 15

Figure 8 Specific Heats of Aqueous Triethylene Glycol Solutions . . . . . . . 16

Figure 9 Thermal Conductivities of Aqueous Triethylene

Glycol Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 10 Dew Points of Aqueous Triethylene Glycol Solutions at

Various Contact Temperatures . . . . . . . . . . . . . . . . . . . 18

Figure 11 Comparative Hygroscopicities of Various Glycols

at 70F (21C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Figure 12 Refractive Indices of Pure Triethylene Glycol . . . . . . . . . . . . 20


3/33

ii

Figure 13 Refractive Indices of Aqueous Triethylene Glycol Solutions

at 77F (25C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Figure 14 Surface Tensions of Pure Triethylene Glycol. . . . . . . . . . . . . 22

Figure 15 Surface Tensions of Aqueous Triethylene Glycol Solutions

at 77F (25C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 16 Electrical Conductivities of Aqueous Triethylene

Glycol Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Health and Environmental Information . . . . . . . . . . . . . . . . . . . . 25

Health Effects . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Environmental Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Biodegradation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Storage and Handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Shipping Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Product Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Emergency Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Sales Office . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Table ofContents


4/33

1

Introduction

Introduction

Precautions:

Carefully review our current Material SafetyData Sheet.

Dow: Your Best Sourcefor Triethylene Glycol QualityDow is the worlds largest producer of

ethylene oxide and glycols, with over 70

years of experience in their manufacture,

marketing, and research and development.

The uniform implementation of statistical

process control at all of our plants enablesus to consistently deliver the high-quality

product you require. Our total approach to

Quality and Quality Systems is continuously

improved to ensure that our facilities meet

the requirements for registration to the

stringent ISO 9000 series of standards.

Optimum performance demands a quality

product, and that is what we deliver. Our

vast distribution system of plants, terminals,

tankers, barges, tank cars, and trucks helpsto ensure your delivery of triethylene glycol

when and where you need it.

ServiceFor solutions to problems or answers to

questions, Dow offers extensive technical

service and support, available through trained

sales representatives as well as our skilled

staff from the Research and Development

Department. Your order of triethylene glycol

will be processed expertly and quickly when

you place a call to one of our many helpful

customer service representatives. (See page 29.)

Product InformationFormula C6H14O4Molecular Formula HOCH

2CH

2OCH

2CH

2OCH

2CH

2OH

CAS Number 112-27-6

Synonyms Glycol-bis(hydroxyethyl) ether

2,2-[1,2-ethanediylbis(oxy)] bis-ethanol

Triglycol

TEG

T3EG

TriEG

Triethylene glycol is a transparent, colorless,

low-volatility, moderate-viscosity, water-soluble liquid. Under normal conditions,

there is no detectable odor; under high vapor

concentrations, a slightly sweet odor may be

detected. It is completely miscible with water

and many organic liquids. Triethylene glycol

has properties similar to other glycols and

may be used preferentially in applications

requiring a higher boiling point, higher

molecular weight, or lower volatility than

diethylene glycol.

The hydroxyl groups on triethylene glycol

undergo the usual alcohol chemistry giving

a wide variety of possible derivatives.

Hydroxyls can be converted to aldehydes,

alkyl halides, amines, azides, carboxylic

acids, ethers, mercaptans, nitrate esters,

nitriles, nitrite esters, organic esters, perox-

ides, phosphate esters and sulfate esters.

Triethylene glycol may be used directly as a

plasticizer or modified by esterification. Thesolubility properties of triethylene glycol are

important for many applications. End-uses

for triethylene glycol are numerous. (See

Table 1.)


5/33

2

Introduction

Introduction

Hygroscopicity Dehydration of natural gas

Moisturizing 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

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

Table 1

Applications


6/33

3

Introduction

Introduction

Product Stewardship

Guidelines and Principles ofThe Dow Chemical CompanyThe following bullet points identify some

applications that are NOT supported by

Dow for EG Products on a go-forward basis.

The reasons for these limitations include

areas in which we have decided not to

pursue for general business reasons and

actions that would minimize unnecessary

risk and liabilities to the business. In addition,

the following list of uses not supported by

Dow does not imply a Dow warranty or Dow

support of uses in applications not covered

by this list. This list is not all-inclusive.

Non-supported applications of Dow-

manufactured EG, DEG,TEG,TETRA, and

By-Products of Glycol Manufacturing

(Dow EG Products):

The use of Dow EG Products in the

production of tobacco and in the manu-

facture of tobacco products (including

but not limited to additives, humectants,

filters, inks, and paper) is not supported

by Dow.

The use of Dow EG Products for the

generation of artificial smoke/theatrical

fogs/mist is not supported by Dow.

The use of Dow EG Products as an

ingredient in fuel for warming foods(SternoTM-like application) or in fuel for

heating an enclosed space where human

exposure is possible is not supported

by Dow.

The use of Dow EG Products in fire

extinguishing sprinkler systems is notsupported by Dow.


manufacture of munitions is not supported

by Dow.


production of deicers for use on roadways

and pedestrian walkways is not supported

by Dow.

The use of Dow EG Products as a componentof heat transfer fluids in systems where the

heat transfer fluid could infiltrate (e.g., via

an exchanger leak, backflow prevention

failure, or other means) a potable water

system is not supported by Dow.

The use of Dow EG Products purposely as

a non-reacted component in a formulation

for direct internal or external human/

animal contact, including but not limited

to ingestion, inhalation, and skin contact,and in medical/veterinary devices and

medical/veterinary applications is not

supported by Dow. (Examples of some such

applications are uses as a direct component

in foods, beverages, pharmaceuticals, cosme-

tics, or personal care products.)

The use of Dow EG Products for consumer

or hospital deodorizing or air purifying

purposes by spraying as an aerosol is not

supported by Dow.

The use of Dow EG Products as a

non-reacted component in adhesives,

packaging that has direct contact with

food or beverages is not supported by Dow.


7/33

4

Introduction

Introduction

The use of Dow EG Products as a non-

reacted component in the formulationof glues, pastes, or items where the

potential for sufficient human contact

and/or ingestions exists (including but

not limited to childrens school glues/

paste or art/craft glue/paste) is not

supported by Dow.

To enter into new applications beyond

the traditional standard industrial use

applications, contact your Dow representative

to review the specific application. Dow hasa risk assessment process whereby the

application will be reviewed and a deter-

mination will be made as to whether the

application meets Dows requirements and

can therefore be supported by Dow. Because

use conditions and applicable laws may

differ from one location to another and

may change with time, when an application

is supported by Dow, Dow does not warrant

and is not responsible for the use in suchapplication.

NO WARRANTIES ARE GIVEN;

ALL IMPLIED WARRANTIES OFMERCHANTABILITY OR FITNESS

FOR A PARTICULAR PURPOSE ARE

EXPRESSLY EXCLUDED.

Further, any violation of or failure to

comply with the information contained in

Dows Material Safety Data Sheet, Product

Label, Product Information Guide, product

literature or other product safety information

is a misuse of Dows EG and Higher Glycol

Products. These documents can be obtainedby contacting your Dow representative or

Dows Customer Information Group

(800) 447-4369. We can never specify all

circumstances where misuse might occur,

so if at any time a customer or downstream

use appears to be improper or unsafe, please

contact our Product Steward at (225) 353-6122.


8/33

5 Properties

Properties

Property Scientific Units Common Units

Autoignition Temperature 349C 660F

Boiling Point at 760 mm Hg 288.0C 550.4F

Boiling Point/Pressure (750770 mm Hg) 0.0073C/kPa 0.055C/mm Hg

Critical Pressure 3,313.3 kPa 24,852 mm Hg

Critical Specific Volume 0.443 L/gmol 7.10 ft3/lbmol

Critical Temperature 440C 824FDielectric Constant 23.69 23.69

Electrical Conductivity 0.20 x 10-6 mhos/cm 0.002 micromhos/cm

Evaporation Rate (Butyl Acetate = 1)


9/33

6

Properties

Properties

Material Solubility

Acetone Completely Soluble

Animal Glue (Dry) Slightly Soluble

Benzene Completely Soluble

Carbon Tetrachloride 40.6

Castor Oil 0.3

Cellulose Acetate Completely Soluble

Chlorobenzene Completely Soluble

Coconut Oil Insoluble

Cottonseed Oil Insoluble

Dextrin Completely Soluble

Dextrin (10% in water) Insoluble

Dibutyl Phthalate 19.8

Dichloroethyl Ether Completely Soluble

Diethanolamine Completely Soluble

Ethyl Ether 20.4

Ethylene Glycol Stearate Slightly Soluble

Gum Damar Slightly Soluble

Heptane Slightly Soluble

Hydrous Wool Fat Slightly Soluble

Kauri Gum Slightly Soluble

Lard Oil Insoluble

Linseed Oil Insoluble

Methanol Completely Soluble

Monoethanolamine Completely Soluble

Nitrocellulose Completely Soluble

o-Dichlorobenzene Completely Soluble

Olive Oil Insoluble

Table 3

Solubilities of Various Materials in Triethylene GlycolSolubility, g/100 mL of Triethylene Glycol at 25C

Material Solubility

Paraffin Oil Insoluble

Phenol Completely Soluble

Pine Oil Completely Soluble

Rosin 5.0

Shellac Slightly Soluble

Soy Bean Oil Insoluble

Sperm Oil Insoluble

Tall Oil 10.1

Tetrachloroethylene 17.7

Toluene 33.0

Tung Oil Insoluble

Turkey Red Oil 12.3

Urea 31.0


10/33

7

Table 4

Triethylene Glycol Compatibility with Elastomeric Materials

Properties

Properties

25C (77F) 80C (176F) 160C (320F)

AdipreneL-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

Saraloy300 Good Poor Poor

Silicone No. 65 Good Good

Thiokol 3060 Good Poor Poor

Viton A Good Good Poor

TemperatureMaterial


11/33

8

Properties

Properties

Table 5

Constant Boiling Mixtures of Triethylene Glycol

InAzeotrope

InUpperLayer

InLowerLayer

Triethylene Glycol

Acenaphthene

1.1255 288.0

277.9

271.5 35

65

(c)

(c)

(c)

(c)

(c)

(c)

Triethylene Glycol (5 mm Hg)

Benzyl Ether

1.1255 145.5 (a) Azeo (a) 28

72

15

85

60

40

U 72

L 28

Triethylene GlycolBenzyl Phenyl Ether

1.1255 288.0286.5

280.0 4060

(c)(c)

(c)(c)

(c)(c)

Triethylene Glycol

Biphenyl

1.1255 288.0256.1

None


Diethylene Glycol

1.1255

1.1184

135.3(a)

108.0(a)None(a)

Triethylene Glycol

Diphenylmethane

1.1255 288.0

263.0

263.0 20

60

(c)

(c)

(c)

(c)

(c)

(c)

Triethylene Glycol

1,2-Diphenylmethane

1.1255 288.0

284.5

275.5 42

58

(c)

(c)

(c)

(c)

(c)

(c)

Triethylene Glycol

Ethyl Phthalate

1.1255 288.0

298.5

< 285.5 > 58 (c) (c) (c)

Triethylene Glycol

Isoamyl Benzoate

1.1255 288.0

262.0

261.4 14

86

(c)

(c)

(c)

(c)

(c)

(c)

Triethylene Glycol

Isoamyl Oxalate

1.1255 288.0

268.0

Reacts

Triethylene Glycol

Isoamyl Salicylate

1.1255 288.0

277.5

269.0 30

70

(c)

(c)

(c)

(c)

(c)

(c)

Triethylene Glycol

Methyl Phthalate

1.1255 288.0

283.2

277.0 33

67

(c)

(c)

(c)

(c)

(c)

(c)

Triethylene Glycol

Phenyl Benzoate

1.1255 288.0

315.0

286.0 80

20

(c)

(c)

(c)

(c)

(c)

(c)

Triethylene Glycol

Phenyl Ether

1.1255

1.0677(b)

288.0

259.0

258.7 3

97

(c)

(c)

(c)

(c)

(c)

(c)


Phenyl Ether

1.12551.0677(b)

141.0(a)

102.0(a)None(a)

Triethylene Glycol

Water

1.1255

1.0000

288.0

100.0

None


Water

1.1255

1.0000

161.0(a)

11.0(a)None(a)

SpecificGravity

at20/20C

Boiling Pointat

760 mm Hg,0C

Composition % by Wt at 20CBoiling Pointat

760 mm Hg,0C

Components Azeotrope

RelativeVolume

ofLayers At20C, %

(a) At the pressure investigated; (b) At 30/20C; (c) Data not available


12/33

9

Properties

Properties

Figure 1

Freezing Points of Aqueous Triethylene Glycol Solutions

Temperature,

C

10

0

-10

-20

-30

-40

-50

Temperature,

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


13/33

10

Properties

Properties

Temperature,

C

350

300

250

200

150

100

50

Temperature,

F

140

180

220

260

300

340

380

420

460

500

540

580

620

660


0 10 20 30 40 50 60 70 80 90 100

1520 mm Hg*

760 mm Hg

300 mm Hg

Figure 2

Boiling Points vs. Composition of Aqueous TriethyleneGlycol Solutions at Various Pressures

*2 atmospheres absolute, 1 atmosphere gauge


14/33

11

Properties

Properties

Figure 3

Condensation Temperatures vs. Composition of Aqueous TriethyleneGlycol Solutions at Various Pressures

Temperature,

C

350

300

250

200

150

100

50

Temperature,

F

140

180

220

260

300

340

380

420

460

500

540

580

620

660


0 10 20 30 40 50 60 70 80 90 100

1520 mm H

g*

760mmHg

300mmHg

*2 atmospheres absolute, 1 atmosphere gauge


15/33

12

Properties

Properties

Figure 4

Vapor Pressures of Triethylene Glycol at Various Temperatures

Temperature, F

220 240 280 320 360 400 440 480 560 640

VaporPressure,

mmH

g

1

2

34

68

10

20

3040

6080100

200

300400

600800

1000

Temperature, C100 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

Triethylene Glycol Antoine Constants for Calculating Vapor Pressure

3-Constant Equation (Temperature Range = 150300C)

A = 7.6302007 Range = 150300CB = 2156.4581 P = mm HgC = 165.92442 T = CLog

10(P) = A B/(T + C)

5-Constant Equation (Temperature Range = 360.15712.51K)

A = 95.5205 Range = 360.15712.51KB = 12834.7 P = PaC = 0.0 T = KelvinD = -9.66752E = 3.0015 x 10 -29

N = 10ln(P) = A B/(T + C) + D(ln(T)) + ETN


16/33

13

Properties

Properties

Figure 5

Vapor Pressures of Aqueous Triethylene Glycol Solutionsat Various Temperatures

Freezing PointCurves

-40 -20 0 20 40 60 80 100 130 1600.1

0.2

0.40.6

1

2

46

10

20

4060

100

200

400600

1,000

2,000

4,0006,000

10,000

Temperature, C

Temperature, F

VaporPresure,

mmHg

TriethyleneGlycol,PercentbyWeightinWater

-40 -20 0 20 40 80 120 160 200 240 300

0 507090959798

9999.5

100

80

TriEG, Wt% A B C

0 7.959199 1663.545 227.575

50 7.922294 1671.501 228.031

70 7.878546 1681.363 228.237

80 7.837076 1697.006 228.76990 7.726126 1728.047 229.823

95 7.620215 1806.257 236.227

97 7.495349 1841.522 238.048

98 7.404435 1881.474 240.666

99 7.211145 1926.114 242.799

99.5 7.042989 1970.802 242.865

100 7.472115 2022.898 152.573

Triethylene Glycol Antoine Constants for Calculating Vapor Pressure3-Cons tant Antoine Equation Log

10(P) = A B/(T + C)

P = mm Hg, T = C


17/33

14

Properties

Properties

Figure 6

Specific Gravities of Aqueous Triethylene Glycol Solutions

Freezing PointCurves -50 F

0 F

50 F

100 F

150 F

200 F

250 F

300 F

0 10 20 30 40 50 60 70 80 90 1000.90

0.92

0.94

0.96

0.98

1.00

1.02

1.041.06

1.08

1.10

1.12

1.14

1.16

1.18


ApparentSpecificGravity,

T/60F

T, F A B C

-50 1.0502 1.8268E-3 -5.2009E-6

0 1.0319 1.7466E-3 -4.8304E-6

50 1.0121 1.5247E-3 -2.8794E-6

100 0.9920 1.7518E-3 -5.4955E-6

150 0.9804 1.5410E-3 -4.3884E-6

200 0.9627 1.4068E-3 -3.5089E-6

250 0.9413 1.3205E-3 -2.7991E-6300 0.9177 1.2511E-3 -2.0848E-6

Specific Gravity at T/60F = A + Bx + Cx 2

x = Weight % Triethylene Glycol


18/33

15

Properties

Properties

Figure 7

Viscosities of Aqueous Triethylene Glycol Solutions


0F

50F

100F

150 F

200 F

250 F

300 F

0 10 20 30 40 50 60 70 80 90 100

0.1

0.2

0.40.6

1

2

46

10

20

4060

100

200

400600

1000


Viscosity,

Cen

tipoises

T, F A B

0 1.53010 2.9967E-2

50 1.09200 1.9348E-2

100 0.58916 1.5763E-2

150 0.37045 1.3481E-2

200 0.27371 1.1731E-2

250 0.18759 9.7064E-3

300 0.14026 8.1319E-3

Viscosity, Centiposies (cP) = A x 10Bx



19/33

16

Properties

Properties

Figure 8

Specific Heats of Aqueous Triethylene Glycol Solutions


-50 0 50 100 150 200

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

Temperature, C

Temperature, F

SpecificHeat,Btu/lb/F


-40 0 40 80 120 160 200 240 280 320 360

01020

4050

6070

8090

100

30

TriEG, Wt% A B C

0 1.00540 -2.7286E-4 2.9143E-6

10 0.96705 -2.7144E-5 2.4952E-6

20 0.92490 2.0429E-4 2.4524E-6

30 0.88012 4.3000E-4 1.6952E-6

40 0.83229 6.2286E-4 1.3714E-650 0.78229 7.9286E-4 1.0857E-6

60 0.72200 9.4000E-4 8.0000E-7

70 0.66688 1.0871E-3 4.7620E-7

80 0.60393 1.2043E-3 2.8571E-7

90 0.53888 1.2800E-3 1.9048E-7

100 0.48614 1.3929E-3 -5.7140E-8

Specific Heat = A + BT+CT2

T = Temperature, C


20/33

17

Properties

Properties

Figure 9

Thermal Conductivities of Aqueous Triethylene Glycol Solutions


-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

ThermalConductivity,Btu(ft)/hr(ft2)F


0 40 80 120 160 200 240 320 360280

0

20

10

40

30

50

60

70

8090

100

TriEG, Wt% A B

0 0.33667 7.1667E-4

10 0.31000 6.0000E-4

20 0.29000 4.0000E-4

30 0.27200 2.0000E-4

40 0.25133 3.3333E-5

50 0.22767 3.3333E-5

60 0.20933 -1.6667E-4

70 0.18800 -2.0000E-4

80 0.17267 -2.8333E-4

90 0.15567 -2.8333E-4

100 0.14133 -3.1667E-4

Thermal Conductivity = A + BTT = Temperature, C


21/33

18

Properties

Properties

Figure 10

Dew Points of Aqueous Triethylene Glycol Solutions atVarious Contact Temperatures


-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

FrostPoint,C

Dew

Point,C

FrostPoint,F

Dew

Point,F

-20 0 20 40 60 80 100 120

99.5

99

98

95

70

50

Triethylene Glycol,

Percent by Weight

in Water

9080

-50

-40-30

-20-10

010

203040

5060

70

8090100

110120

130

140

TriEG, Wt% A B

50 -3.0308 1.01050

70 -7.0009 1.01610

80 -10.745 1.0116090 -17.923 0.98187

95 -25.252 0.93019

98 -34.675 0.85598

99 -41.419 0.80150

99.5 -47.195 0.73263

Dew or Frost Point = A + BTT = Temperature, C


22/33

19

Properties

Properties

Figure 11

Comparative Hygroscopicities of Various Glycols at 70F (21C)

25 30 35 40 45 50 55 60 65 70 755

6

78

10

60

20

30

40

50

7080

100

Percent Relative Humidity

PercentWater(BasedonDryHumectantatEquilibrium)

Diethylene Glycol

Ethylene Glycol

Propylene Glycol

Dipropylene Glycol

Triethylene Glycol


23/33

20

Properties

Properties

Figure 12

Refractive Indices of Pure Triethylene Glycol

20 22 24 26 28 30 32 34 36 38 40

1.446

1.448

1.450

1.452

1.454

1.456

1.458

1.460

Temperature, C

ReactiveI

nd

ex

Refractive Index = 1.4626 0.000340T

T = Temperature, C


24/33

21

Properties

Properties

Figure 13

Refractive Indices of Aqueous Triethylene Glycol Solutions at 77F (25C)

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


ReactiveIn

dex

Refractive Index, 77F (25C) = 1.3326 + 0.0012403 x



25/33

22

Properties

Properties

Figure 14

Surface Tensions of Pure Triethylene Glycol

0 50

40 80 120 160 200 240 280

100 15034

36

38

40

42

44

46

Temperature, C

Temperature, F

SurfaceTension,

dynes/c

m

Surface Tension, dynes/cm = 47.330 0.088T

T = Temperature, C


26/33

23

Properties

Properties

Figure 15

Surface Tensions of Aqueous Triethylene Glycol Solutions at 77F (25C)

0 10 20 30 40 50 60 70 80 90 100

30

40

50

60

70


SurfaceTension,d

ynes/cm

80


27/33

24

Properties

Properties

Figure 16

Electrical Conductivities of Aqueous Triethylene Glycol Solutions

0 10 20 30 40 50 60 70 80 90 1000

2

4

6

8

10

12


ElectricalConductivity,m

icromhoms/cm

Note: The quality of the water used for dilution can significantly affect

the electrical conductivity.


28/33

25

Health EffectsSee our current Material Safety Data Sheetfor the most current exposure limits, health,

first aid, and toxicology information.

Environmental InformationSee our current Material Safety Data Sheet

for current toxicity information.

Biodegradation

For information concerning the biodegrad-

ability of triethylene glycol, please refer tothe latest Material Safety Data Sheet.

Health andEnvironmental Information

Health and Environmental Information


29/33

26

This information is offered as a guide in

planning bulk storage facilities for glycols.Glycols are generally considered to be stable,

noncorrosive chemicals with high flash

points. Under ordinary conditions, all of

these chemicals can be stored in mild steel

vessels. For long-term storage, or if trace

iron contamination and the development of

color are objectionable in any of the glycols,

a storage vessel lined with a baked-phenolic

resin, an air-drying epoxy-phenolic resin, or

a vinyl resin or a stainless steel or aluminumtank is suggested. Zinc or galvanized iron

is not recommended, and copper or copper

alloys may cause product discoloration.

It is not general practice to use an inert gas

in the vapor space of glycol storage tanks,

because all chemicals in this family have

high boiling points and the vapors in the

tanks are relatively nonflammable. However,

if extremely low water content is required,

consistent with a long storage period, anitrogen blanket can be used to exclude

atmospheric moisture and air. Blanketing

with nitrogen will also minimize low-level

oxidation, if necessary for the desired

application. The inert gas prevents air

oxidation in order to maintain product

within acidity specifications. Increased

acidity enhances iron pickup from steel

vessels. Alternatively, a desiccant unit can

be installed on the tank vent line to dryincoming air.

If above-ground outside storage is planned,

it may be necessary to install provisions for

heating tanks and lines. Many glycols have a

moderately high freezing point or become

relatively viscous at severe winter tempera-tures. However, excessive temperature can

cause undesirable degradation of glycols.

Automatic controls are suggested to limit the

temperature of the contents to 120F (49C).

In cold climates, it is generally desirable

to make provisions for draining the pump

and the transfer lines if they are outside

the building. If this is not feasible, it may

be necessary to insulate and steam trace or

otherwise heat the transfer lines to preventfreezing of the product. Care must be taken

in such an application, because continued

exposure of glycols to high temperatures,

greater than 120F (49C), will result in

product degradation. Transfer piping of

mild steel is generally used.

Shipping DataTriethylene glycol is not regulated by the U.S.

Department of Transportation; therefore,it does not have a DOT Shipping Name,

Hazard Classification, DOT Warning Label,

or Identification Number.

Storage andHandling

Storage and Handling

Weight 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

Shipping Data For Triethylene Glycol


30/33

27

When considering the use of triethylene

glycol in any particular application, reviewand understand our current Material Safety

Data Sheet for the necessary safety and

health information. For Material Safety

Data Sheets and other product safety

information on Dow products, contact The

Dow Chemical Company sales office nearest

you. Before handling any products mentioned

in this booklet, you should obtain the

available product safety information from

the suppliers of those products and take thenecessary steps to comply with all precau-

tions regarding the use of triethylene glycol.

No chemical should be used as or in a food,

drug, medical device, or cosmetic, or in a

product process in which it may come in

contact with a food, drug, medical device,

or cosmetic until the user has determined the

suitability of the use. Because use conditions

and applicable laws may differ from onelocation to another and may change with time,

Customer is responsible for determining

whether products and the information in this

document are appropriate for Customers

use and for ensuring that Customers work-

place and disposal practices are in compliance

with applicable laws and other governmental

enactments.

Dow requests that the customer read,

understand, and comply with the informa-tion contained in this publication and the

current Material Data Safety Sheet(s). The

customer should furnish the information in

this publication to its employees, contrac-

tors, and customers, or any other users of

the product(s), and request that they do

the same.

Product Safety

Product Safety


31/33

28

Location Dow Products All Chemical Products

Mainland United States

and Puerto Rico

Phone Dow HELP:

(800) 822-4357(toll-free)Phone CHEMTREC:

(800) 424-9300(toll-free)

Alaska and HawaiiPhone Mainland United States:


(800) 424-9300(toll-free)

Canada Phone Dow:(519) 339-3711(collect) Phone CANUTEC:(613) 996-6666(collect)

Continental Europe, Middle East,

North and Central Africa

Phone:

+31 115 694982

Phone CHEMTREC

(United States):

(703) 527-3887(collect)

United Kingdom and Ireland

Phone National Chemical

Emergency Center (Culham-UK):

44-1553-761-251

(44)(0) 1865-407-333

Phone CHEMTREC

(United States):

(703) 527-3887(collect)

Latin America, Asia/Pacific, South

Africa and any other location,worldwide

Phone United States:


(703) 527-3887(collect)

If you are at sea, radio U.S. Coast

Guard, who can directly contact

Dow HELP or CHEMTREC

Phone Dow HELP:


(800) 424-9300(toll-free)

Emergency Service

Emergency Service

The Dow Chemical Company maintains an around-the-clock emergency service for its

products. The Chemical Manufacturers Association (CHEMTREC), TransportationCanada (CANUTEC), and the Chemical Emergency Agency Service maintain an

around-the-clock emergency service for all chemical products.

DO NOT WAIT. Phone if in doubt. You will be referred to a specialist for advice.


32/33

29

For additional information, contact our

customer service center:

The Dow Chemical Company

2040 Dow Center

Midland, MI 48674

www.dow.com

Phone: (800) 232-2436

Sales Office

Sales Office


33/33

NOTICE: No freedom from any patent owned by Seller or others is to be inferred. Because use conditions and applicable laws may differ from one

location to another and may change with time, Customer is responsible for determining whether products and the information in this document are

appropriate for Customers use and for ensuring that Customers workplace and disposal pract ices are in compliance with applicable laws and

other governmental enactments. Seller assumes no obligation or liability for the information in this document. NO WARRANTIES ARE GIVEN;ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY EXCLUDED.

Published February 2007 Trademark of The Dow Chemical Company (Dow) or an affiliated company of Dow Form No: XXX-0207XC

Documents

All About C6H14O4