Contents
Introduction ............................................3 Product Profiles.......................................4 Ethylenediamine (EDA).........................4 Diethylenetriamine (DETA) ..................4 Triethylenetetramine (TETA) ................4 Tetraethylenepentamine (TEPA) ..........4 Heavy Polyamine (HPA) ........................5 Piperazine (PIP)......................................5 Aminoethylpiperazine (AEP) ................5 Aminoethylethanolamine (AEEA) ........5 Typical Physical Properties ....................6 Ethyleneamines Vapor Pressure vs. Temperature ........8 Viscosity vs. Temperature...................9 Specific Gravity vs. Temperature .....10 Ethylenediamine Aqueous Solutions Freezing Point vs. Composition.......11 Vapor-Liquid Equilibria at 760 mm Hg ................................12 Heat of Solution at 22°C ...................13 Specific Gravity vs. Temperature .....14 Piperazine Aqueous Solutions Freezing Point vs. Composition.......15 Vapor-Liquid Equilibria at 760 mm Hg ................................16 Reactions of Ethyleneamines...............17 Reaction Notes ......................................18 Ethyleneamines Applications ..............20 Major End-Uses....................................21 Lubricant and Fuel Additives..............22 Polyamide Resins .................................23 Asphalt Additives and Emulsifiers.......24 Petroleum Production and Refining....24 Resins and Additives for Pulp and Paper .....................................25 Epoxy Curing Agents............................26 Bleach Activators..................................26 Chelates and Chelating Agents...........27 Metal Ore Processing ...........................27 Surfactants and Emulsifiers ................28 Anthelmintics (Dewormers) ...............28 Fabric Softeners....................................29 Fungicides.............................................30 Textiles...................................................31 Polymers and Elastomers....................31 Other Applications ...............................31 Shipping Data........................................32 Product Specifications..........................32 Product Availability...............................33 Storage and Handling ...........................34 Health Effects ........................................35 Ecological Fate and Effects...................36 Product Safety .......................................37 FDA Status .............................................38 References .............................................40 Emergency Service................................47
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Introduction he Dow Chemical Company, pioneered ethyleneamines development in 1935, when the company was the first to commercialize production, and has been the acknowledged world leader in the business ever since. Today, Dow manufactures ethyleneamines in two world-scale facilities at its Taft, Louisiana, petrochemicals complex. We are the only producer to use both the ethylene dichloride and reductive amination catalytic processes, thus providing unparalleled flexibility in meeting customer needs. Unexcelled quality in product, technology, and services is the byword of Dow's ethyleneamines business. Another first for the company was receipt of ISO 9002 registration in 1990 for the Taft quality systems. Since then, registrations have been received for raw material quality systems, including those for ethylene, ethylene oxide, and ethanolamines, as well as for domestic and international distribution systems. In 1994, our ethyleneamines business won the Shingo Prize for Excellence in Manufacturing. The award recognizes outstanding achievements in manufacturing processes, quality enhancement, productivity improvement, and customer satisfaction. Helping to drive these evergreen quality programs is Dow's technology leadership. Dedicated research and development focused on the ethyleneamines production processes has constantly improved product quality. Manufacturing technicians employ advanced statistical process control and zone charting for continuous improvement and reduced variability. Backing them is the in-plant laboratory with dedicated equipment for each of the ethyleneamines covered in this publication. And our applications scientists, unsurpassed in their knowledge of ethyl-eneamine end uses, are always ready to assist customers with their needs. Dow's worldwide distribution network assures you of a readily available source of ethyleneamines.
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Product Profiles
Ethylenediamine (EDA) (1,2-diaminoethane) is the lowest molecular weight member of the ethyleneamines family. It contains two primary amine groups and forms a maximum boiling azeotrope with water. H2NCH2CH2NH2 EDA is used primarily as an intermediate in the production of bleach activators, fungicides, chelating agents, plastic lubricants, textile resins, polyamides, and fuel additives.
Diethylenetriamine (DETA) is the second linear member of the ethyleneamines family. It contains two primary and one secondary amine groups. Compared to ethylenediamine, DETA exhibits a broad liquid range: 207°C (405°F) boiling point at 760 mm Hg and -39°C (-38°F) freezing point. H2NCH2CH2NHCH2CH2NH2 DETA is used primarily as an intermediate to manufacture wet-strength paper resins, chelating agents, ion exchange resins, ore processing aids, textile softeners, fuel additives, and corrosion inhibitors.
Triethylenetetramine (TETA) is a liquid containing linear, branched, and cyclic molecules. The principal tetramine structures are: H2NC2H4NHC2H4NHC2H4NH2 (H2NC2H4)3N HN NC2H4NHC2H4NH2 H2NC2H4N NC2H4NH2 Linear TETA Tris-aminoethylamine (TAEA) Piperazinoethylethylenediamine (PEEDA) Diaminoethylpiperazine (DAEP) (Bis-aminoethylpiperazine)
The major applications of TETA include epoxy curing agents, and the production of polyamides and oil and fuel additives.
Tetraethylenepentamine (TEPA) is a mixture containing linear, branched, and cyclic molecules. The structures of the major TEPA components are:
H2NC2H4NHC2H4NHC2H4NHC2H4NH2 H2NC2H4NHC2H4N(C2H4NH2)2 H2NC2H4NHC2H4N NC2H4NH2 HN NC2H4NHC2H4NHC2H4NH2 Linear TEPA Aminoethyltris-aminoethylamine (AE-TAEA) Aminoethyldiaminoethylpiperazine (AE-DAEP) Aminoethylpiperazinoethylethylenediamine (AE-PEEDA)
Among the major end-uses for TEPA are the preparation of oil and fuel additives, reactive polyamides, epoxy curing agents, and corrosion inhibitors.
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Heavy Polyamine (HPA) is a complex mixture of linear, branched, and cyclic ethyleneamines, the structures of which can be deduced from the chemistry of manufacture and a knowledge of the structures present in TETA and TEPA. The structures of the principal components contain six or more nitrogen atoms per molecule. The major end-use applications for HPA include oil and fuel additives, corrosion inhibitors, and asphalt additives.
Piperazine (PIP) is the simplest cyclic member of the ethyleneamines family. The product has two secondary amine groups. Anhydrous PIP has a fairly high freezing point of 110°C (230°F) and a boiling point of 146°C (295°F) at 760 mm Hg. Since this narrow liquid range makes it difficult to handle, commercial piperazine is often sold in aqueous solutions to facilitate handling and storage. In addition, an anhydrous piperazine is available in flake form. HN NH
Among the major applications for PIP are anthelmintics, pharmaceutical preparations, polyamides, and as an intermediate for the production of triethylenediamine polyurethane catalyst.
Aminoethylpiperazine (AEP) is unique among the ethyleneamines: it contains one primary, one secondary, and one tertiary nitrogen atom. AEP has a broad liquid range: boiling point of 222°C (432°F) at 760 mm Hg and a freezing point of -17°C (1.4 °F). HN NC2H4NH2
Major end-uses for AEP include the production of urethane catalysts, epoxy curing agents, and asphalt additives.
Aminoethylethanolamine (AEEA) is an organic base with unique properties that make it an invaluable intermediate. The primary and secondary amine groups, together with the hydroxyl group, combine the features of an ethyleneamine and an ethanolamine. H2NC2H4NHC2H4OH Principal end-uses include surfactants, fabric softeners, fuel additives, chelates, and coatings. Note: "mlm" or "mlm" = CH 2 CH 2
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Typical Physical Properties
Apparent Specific Gravity at 20/20°C 0.898 0.952 0.980 0.994 1.015 1.036(4) 0.877(5) 0.986 1.030
