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1 The printed material you requested is attached. fyi Union Carbide is now a subsidiary of The Dow Chemical Company. The combined companies offer customers around the world a broader product offering of chemical, plastic and agricultural products. For additional information about The Dow Chemical Company and its products and services, visit our Internet website at: Form No: QRP UC-2179

2 Triethylene Glycol

3 IMPORTANT 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 user s product formulation, specific use application, and conditions of use are beyond Union Carbide s control, Union Carbide makes no warranty or representation regarding 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 user s specific application. This information is not to be taken as a warranty or representation for which Union Carbide assumes legal responsibility nor as permission to practice any patented invention without a license

4 Table of Contents: 2 Introduction 3...Table 1: Applications 4 Properties 4...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 70 F (21 C) 19...Figure 12: Refractive Indices of Pure Triethylene Glycol 20...Figure 13: Refractive Indices of Aqueous Triethylene Glycol Solutions at 77 F (25 C) 21...Figure 14: Surface Tensions of Pure Triethylene Glycol 22...Figure 15: Surface Tensions of Aqueous Triethylene Glycol Solutions at 77 F (25 C) 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 1

5 Introduction Precautions: Carefully review the current Material Safety Data Sheet. Not recommended for use as an ingredient in food or beverages. Union Carbide... Your best source for Triethylene Glycol Quality Union Carbide is the world s 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 our plants enables us 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 9002 series of standards. Optimum performance demands a quality product, and that is what we deliver. Our vast distribution system of plants, terminals, warehouses, tankers, barges, tank cars and trucks helps to ensure your delivery of triethylene glycol when and where you need it. Service... For solutions to problems or answers to questions, take advantage of Union Carbide s technical service and support, available through trained sales representatives as well as a skilled staff from our 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 30.) Triethylene Glycol Formula C 6 H 14 O 4 Molecular Formula HOCH 2 CH 2 OCH 2 CH 2 OCH 2 CH 2 OH CAS Registry Number Synonyms Glycol-bis(hydroxyethyl) ether 2,2 -[1,2-ethanediylbis(oxy)] bis-ethanol Triglycol TEG T3EG TriEG Triethylene glycol is a transparent, colorless, lowvolatility, 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, peroxides, phosphate esters and sulfate esters. Triethylene glycol may be used directly as a plasticizer or modified by esterification. The solubility properties of triethylene glycol are important for many applications. End-uses for triethylene glycol are numerous. (See Table 1.) 2

6 Table 1: Applications Hygroscopicity Plasticizer Low Volatility Solvent Chemical Intermediate Freezing Point Depression Dehydration of natural gas Moisturizing and plasticizing cork, adhesives Safety glass Separation membranes (silicone rubber, polyvinyl acetate, cellulose triacetate) Ceramic materials (resistant refractory plastics, molded ceramics) Gas dehydration Explosives Resin impregnants and other additives Steam-set printing inks Aromatic and paraffinic hydrocarbons separations Cleaning compounds Polyethylene terephthalate production equipment cleaning Cyanoacrylate and polyacrylonitrile 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 Heat transfer fluids Union Carbide does not recommend triethylene glycol or other higher glycols 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. 3

7 Properties Table 2: Physical Properties of Triethylene Glycol Determined on purified samples of Triethylene Glycol Property Scientific Units Common Units Autoignition Temperature 349 C 660 F Boiling Point at 760 mmhg C F Boiling Point/ Pressure ( mmhg) C/kPa C/mmHg Critical Pressure 3,313.3 kpa 24,852 mmhg Critical Specific Volume L/gmol 7.10 ft 3 /lbmol Critical Temperature 440 C 824 F Dielectric Constant Electrical Conductivity0.20 micromhos/m Evaporation Rate (Butyl Acetate = 1) <0.001 <0.001 Flammable Limits in Air, Lower 0.9%(V) 0.9%(V) Flammable Limits in Air, Upper 9.2%(V) 9.2%(V) Flash Point, Cleveland Open Cup ASTM D C 375 F Flash Point, Pensky-Martens Closed Cup ASTM D C 350 F Freezing Point -4.3 C 24.3 F micromhos/cm Heat of Combustion at 25 C -3,500 kj/gmol -10,020 Btu/lb Heat of Vaporization 62.5 kj/gmol 179 Btu/lb Molecular Weight g/mol g/mol Onset of Initial Decomposition 240 C 464 F Refractive Index, n D, 20 C Solubility in Water at 20 C, wt% 100% 100% Solubility of Water in Triethylene Glycol at 20 C, wt% 100% 100% Specific Gravity, 20/20 C Specific Gravity vs. Temperature (10-40 C) / C / C Surface Tension 45.5 mn/m 45.5 dynes/cm Vapor Density (Air = 1) Vapor Pressure at 20 C <0.001 kpa <0.01 mmhg Viscosity at 20 C 49.0 mps 49.0 cp 4

8 Table 3: Solubilities of Various Materials in Triethylene Glycol Solubility, g/100 ml of Triethylene Glycol at 25 C 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 o -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

9 Table 4: Triethylene Glycol Compatibility with Elastomeric Materials Temperature Material 25 C (77 F) 80 C (176 F) 160 C (320 F) 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 6

10 Table 5: Constant Boiling Mixtures Components Azeotrope Composition, Boiling Boiling % by Wt at 20 C Relative Specific Point at Point at In In In Volume Gravity 760 mmhg, 760 mmhg, Azeo- Upper Lower of Layers at 20/20 C C C trope Layer Layer at 20 C, % Triethylene Glycol (c) (c) (c) Acenaphthene (c) (c) (c) Triethylene Glycol (5mmHg) (a) Azeo (a) U 72 Benzyl Ether L 28 Triethylene Glycol (c) (c) (c) Benzyl Phenyl Ether (c) (c) (c) Triethylene Glycol None Biphenyl Triethylene Glycol (3mmHg) (a) None (a) Diethylene Glycol (a) Triethylene Glycol (c) (c) (c) Diphenylmethane (c) (c) (c) Triethylene Glycol (c) (c) (c) 1,2-Diphenylmethane (c) (c) (c) Triethylene Glycol <285.5 >58 (c) (c) (c) Ethyl Phthalate Triethylene Glycol (c) (c) (c) Isoamyl Benzoate (c) (c) (c) Triethylene Glycol Reacts Isoamyl Oxalate Triethylene Glycol (c) (c) (c) Isoamyl Salicylate (c) (c) (c) Triethylene Glycol (c) (c) (c) Methyl Phthalate (c) (c) (c) Triethylene Glycol (c) (c) (c) Phenyl Benzoate (c) (c) (c) Triethylene Glycol (c) (c) (c) Phenyl Ether (b) (c) (c) (c) Triethylene Glycol (4mmHg) (a) None (a) Phenyl Ether (b) (a) Triethylene Glycol None Water Triethylene Glycol (10 mmhg) (a) None (a) Water (a) (a) At the pressure investigated; (b) At 30/20 C; (c) Data not available 7

11 Figure 1: Freezing Points of Aqueous Triethylene Glycol Solutions Temperature, C Temperature, F Triethylene Glycol, Percent by Weight in Water 8

12 Figure 2: Boiling Points vs. Composition of Aqueous Triethylene Glycol Solutions at Various Pressures Temperature, C Atmospheres Gauge Temperature, F mmhg 300 mmhg Triethylene Glycol, Percent by Weight in Water 9

13 Figure 3: Condensation Temperatures vs. Composition of Aqueous Triethylene Glycol Solutions at Various Pressures Temperature, C Atmospheres Gauge 760 mmhg 300 mmhg Temperature, F Triethylene Glycol, Percent by Weight in Water 10

14 Figure 4: Vapor Pressures of Triethylene Glycol at Various Temperatures Temperature, F Vapor Pressure, mmhg Triethylene Glycol Antoine Constants A= B= C= Log(P)=A B/(t+C) mm Hg, Log 10, C Temperature, C Triethylene Glycol Antoine Constants for Calculating Vapor Pressure 3-Constant Equation (Temperature Range = C) A= Range = C B= P = mm Hg C= T = C Log 10 (P) = A B/(T + C) 5-Constant Equation (Temperature Range = K) A= Range = K B= P = Pa C=0.0 T = Kelvin D= E= x N=10 ln(p) = A B/(T + C) + D(ln(T)) + ET N 11

15 Figure 5: Vapor Pressures of Aqueous Triethylene Glycol Solutions at Various Temperatures 12 Vapor Presure, mmhg 10,000 6,000 4,000 2,000 1, Freezing Point Curves Temperature, F Temperature, C Triethylene Glycol Antoine Constants for Calculating Vapor Pressure 3-Constant Antoine Equation Log 10 (P) = A B/(T + C) P = mm Hg, T = C TriEG, Wt% A B C Triethylene Glycol, Percent by Weight in Water

16 Figure 6: Specific Gravities of Aqueous Triethylene Glycol Solutions Apparent Specific Gravity, T/60 F Freezing Point Curves -50 F 0 F 50 F 100 F 150 F 200 F 250 F 300 F Triethylene Glycol, Percent by Weight in Water Specific Gravity at T/60 F = A + Bx + Cx 2 x = Weight % Triethylene Glycol T, F A B C E E E E E E E E E E E E E E E E-6 13

17 Figure 7: Viscosities of Aqueous Triethylene Glycol Solutions Viscosity, Centipoises Freezing Point Curves 0 F 50 F 100 F 150 F 200 F 250 F 300 F Triethylene Glycol, Percent by Weight in Water Viscosity, Centiposies (cp) = A x 10 Bx x = Weight % Triethylene Glycol T, F A B E E E E E E E-3 14

18 Figure 8: Specific Heats of Aqueous Triethylene Glycol Solutions Temperature, F Specific Heat, Btu/lb/ F Freezing Point Curves Triethylene Glycol, Percent by Weight in Water Specific Heat = A + BT+CT 2 T = Temperature, C Temperature, C TriEG, Wt% A B C E E E E E E E E E E E E E E E E E E E E E E-8 15

19 Figure 9: Thermal Conductivities of Aqueous Triethylene Glycol Solutions Temperature, F Thermal Conductivity, Btu (ft)/hr (ft 2 ) F Freezing Point Curves Triethylene Glycol, Percent by Weight in Water Thermal Conductivity = A + BT T = Temperature, C Temperature, C TriEG, Wt% A B E E E E E E E E E E E-4 16

20 Figure 10: Dew Points of Aqueous Triethylene Glycol Solutions at Various Contact Temperatures Frost Point, C Dew Point, C Freezing Point Curves Contact Temperatures of Solution, C Dew or Frost Point = A + BT T = Temperature, C Contact Temperatures of Solution, F TriEG, Wt% A B Triethylene Glycol, Percent by Weight in Water Frost Point, F Dew Point, F 17

21 Figure 11: Comparative Hygroscopicities of Various Glycols at 70 F (21 C) Percent Water, (Based on Dry Humectant at Equilibrium) Propylene Glycol Diethylene Glycol Triethylene Glycol Percent Relative Humidity Ethylene Glycol Dipropylene Glycol 18

22 Figure 12: Refractive Indices of Pure Triethylene Glycol Reactive Index Temperature, C Refractive Index = T T = Temperature, C 19

23 Figure 13: Refractive Indices of Aqueous Triethylene Glycol Solutions at 77 F (25 C) Reactive Index Triethylene Glycol, Percent by Weight in Water Refractive Index, 77 F (25 C) = x x = Weight % Triethylene Glycol 20

24 Figure 14: Surface Tensions of Pure Triethylene Glycol Temperature, F Surface Tension, dynes/cm Temperature, C Surface Tension, dynes/cm = T T = Temperature, C

25 Figure 15: Surface Tensions of Aqueous Triethylene Glycol Solutions at 77 F (25 C) 80 Surface Tension, dynes/cm Triethylene Glycol, Percent by Weight in Water 22

26 Figure 16: Electrical Conductivities of Aqueous Triethylene Glycol Solutions 12 Electrical Conductivity, micromhoms/cm Triethylene Glycol, Percent by Weight in Water Note: The quality of water used for dilution can significantly affect electrical conductivity. 23

27 Health Effects Triethylene glycol is slightly toxic. See the latest Material Safety Data Sheet for the most current exposure limits, health, first aid, and toxicology information. Environmental Information Triethylene glycol has been shown to be relatively nontoxic to bacteria and aquatic life. See the latest Material 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 slowly biodegraded. However, with acclimation of the microorganisms, as in a wastewater treatment plant, biodegradation increases to a rapid rate. 24

28 Specifications Specification Regular Grade Gas Treating Grade High Purity Grade Minimum Purity, %wt Maximum Acidity, %wt as Acetic Acid ph, 50% Solution in Water 6.0 to 8.0 Maximum Water, %wt Maximum Ethylene Glycol, %wt Maximum Diethylene Glycol, %wt Maximum Color, Platinum-Cobalt Units Suspended Matter Substantially Free Substantially Free Substantially Free Water SolubilityCompletelymiscible Supplemental Quality Description Description Regular Grade Gas Treating Grade High Purity Grade Specific Gravity at 20/20 C to to to Distillation at Initial Boiling Initial Boiling Will distill entirely 760 mmhg Point: 278 C maximum Point: 278 C maximum within a 15 C range 95 ml: 295 C maximum 95 ml: 295 C maximum between 280 Dry Point: 300 C maximum Dry Point: 300 C maximum and 297 C Refractive Index, n D at 20 C to

29 FDA and EPA Status (a) FDA (21CFR) Permitted Use Component of adhesives used in articles intended for packaging, transporting, or holding food 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 Component of xylene-formaldehyde resins condensed with 4,4 -isopropylidene diphenolepichlorohydrin epoxy resins Component of zinc-silicon dioxide matrix coatings used as food-contact surfaces for bulk reusable containers intended for storing, handling, and transporting food Component of the coated or uncoated food contact surface of paper and paperboard in contact with fatty, aqueous, and dry food Constituent of the base sheet cellophane or of coatings applied to cellophane to impart desired technological properties Component of closure-sealing gaskets and overall discs for food containers Component of 1,4-cyclohexylene dimethylene terephthalate and 1,4-cyclohexylene dimethylene isophthalate copolymers Constituent of the base sheet or of coatings applied to water-insoluble hydroxyethylcellulose film used for packaging food Component of polyethylene terephthalate film used for packaging, transporting, or holding food Plasticizer in polymeric food-packaging materials (b) 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 (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 have additional requirements and/or may periodically amend requirements. It is your obligation to be familiar with and comply with all laws, rules, and regulations applicable to your use of triethylene glycol. 26

30 Storage and Handling This information is offered as a guide in planning bulk storage facilities for glycols. Glycols are generally considered to be stable, non-corrosive 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 airdrying epoxy-phenolic resin, or a vinyl resin or a stainless steel or aluminum tank 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, a nitrogen 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 dry incoming air. taken in such an application, because continued exposure of glycols to high temperatures, greater than 120 F (49 C), will result in product degradation. Transfer piping of mild steel is generally used. Shipping Data Shipping Data for Triethylene Glycol Weight per Gallon at 20 C 9.36 lb Coefficient of Expansion at 55 C Flash Point, Pensky-Martens Closed Cup 350 F 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 does not have a DOT Shipping Name, Hazard Classification, DOT Warning Label, or Identification Number. 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 temperatures. However, excessive temperature can cause undesirable degradation of glycols. Automatic controls are suggested to limit the temperature of the contents to 120 F (49 C). 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 prevent freezing of the product. Care must be 27

31 Product Safety When considering the use of triethylene glycol in any particular application, review and understand Union Carbide s latest Material Safety Data Sheet for the necessary safety and health information so that the use you intend can be accomplished safely. For Material Safety Data Sheets and other product safety information on Union Carbide products, contact the Union Carbide sales office nearest you. Before handling any other products mentioned in this booklet, you should obtain the available product safety information from the suppliers of those materials and take the necessary steps to comply with all precautions for the safe 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 contact a food, drug, medical device, or cosmetic until the user has determined the suitability and legality of the use. Since government regulations and use conditions are subject to change, it is the user s responsibility to determine that this information is appropriate and suitable under current, applicable laws and regulations. Union Carbide requests that the customer read, understand, and comply with the information contained in this publication and the current Material Data Safety Sheet(s). The customer should furnish the information in this publication to its employees, contractors, and customers, or any other users of the product(s), and request that they do the same. 28

32 Emergency Service Union Carbide maintains an around-the-clock emergency service for its products. The Chemical Manufacturers Association (CHEM/TREC), Transportation Canada (CANUTEC) and the Chemical Emergency Agency Service maintain an around-the-clock emergency service for all chemical products. Location Union Carbide Products All Chemical Products Mainland United States Phone Union Carbide HELP: Phone CHEMTREC: and Puerto Rico (800) UCC-HELP (toll-free), (800) (toll-free) i.e., (800) Alaska and Hawaii Phone Mainland United States: Phone CHEMTREC: (304) (collect) (800) (toll-free) Canada Phone Union Carbide: Phone CANUTEC: (514) (collect) (613) (collect) Continental Europe, Phone BIG (Geel-Belgium): Phone CHEMTREC (United States): Middle East, North and (32) (703) (collect) Central Africa United Kingdom and Ireland Phone National Chemical Phone CHEMTREC (United States): Emergency Center (Culham-UK): (703) (collect) (44)(0) Latin America, Asia/Pacific, Phone United States: Phone CHEMTREC (United States): South Africa and any other (304) (collect) (703) (collect) location, worldwide If you are at sea Radio U.S. Coast Guard, who can directly contact Union Carbide HELP (800) (toll-free) or CHEMTREC (800) (toll-free) DO NOT WAIT. Phone if in doubt. You will be referred to a specialist for advice. 29

33 Sales Office For additional information, contact our customer center: West Little York Road Suite 300 Houston, TX Phone: or

34 39 Old Ridgebury Road Danbury, CT /00 UC-2165A P0-0319