Triethylamine CAS 25211-86-3
Factory wholesale Triethylamine CAS 25211-86-3 With Free Sample
- Appearance:Liquid
- Purity:99.8%
- Delivery:30days
- Sample Available:Available
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Name: Triethylamine
CAS: 25211-86-3
MOQ: 1KG
Directory Guidance on Triethylamine
Chemical Structure
Basic Info:
| Melting point | -115 °C |
| Boiling point | 90 °C |
| density | 0.728 |
| vapor density | 3.5 (vs air) |
| vapor pressure | 51.75 mm Hg ( 20 °C) |
| refractive index | n20/D 1.401(lit.) |
Product Introduction:
Triethylamine is a colorless transparent oily liquid with a strong odor of ammonia, which is a typical tertiary amine compound. It is extremely volatile at room temperature, and its vapor can form an explosive mixture after mixing with air, with an explosion limit of 1.2% to 8.0% (volume fraction). Its melting point is -114.8 ° C, its boiling point is 89.5 ° C, its relative density (water =1) is 0.70, its relative vapor density (air =1) is 3.48, and its refractive index is 1.4003 (20 ° C).
From the perspective of solubility, Triethylamine is slightly soluble in water, and can be miscible with water below 18.7℃, and only slightly soluble above this temperature. However, it can be well dissolved in many organic solvents such as ethanol, ether, acetone, chloroform and benzene. Its aqueous solution is alkaline, pH value is about 12.7 (100g/L, 15℃), acidity coefficient pKa is 10.75 (25℃), has a strong alkaline, can react with acid to generate the corresponding salt.
The chemical properties of Triethylamine are relatively active and have typical properties of tertiary amines. It can react with alkyl halides to produce quaternary ammonium salt, and it is easy to oxidize when reacting with potassium permanganate to produce acetic acid, ammonia and nitric acid. When pyrolyzed at 400℃ at low pressure, tetraethylhydrazine and butane are formed, and finally decomposed into methane and nitrogen. In addition, in the presence of cobalt, nickel, copper or copper chloride, Triethylamine can also have an alkyl exchange reaction with alcohols to generate alkyl diethylamine, dialkylethylamine and other compounds.
Triethylamine has strong toxicity and strong irritation to the respiratory tract, which can cause pulmonary edema and even death after inhalation. The rat’s LD₅₀ ₀ ability was 460mg/kg via mouth, the rabbit’s LD₅₀ ability was 570mg/kg via skin and the mouse’s LC₅₀ ability was 6000mg/m³ after 2 hours of inhalation. It can also cause irritation to the eyes, skin and mucous membranes and may cause chemical burns upon contact. In the process of storage and use, it is necessary to pay attention to its flammability, avoid contact with fire sources, and stay away from strong oxidants, acids and other substances.
Nature and Specifications:
| Item | Specification |
| Product Name | Triethylamine |
| CAS No. | 25211-86-3 |
| Appearance | Liquid |
| Shelf Life | 2 years |
| Packing | As your requirements |
| Fp | 20 °F |
| storage temp. | Store below +30°C. |
| solubility | water: soluble112g/L at 20°C |
| pka | 10.75(at 25℃) |
| form | Liquid |
| color | Clear |
Product service:
- Certificate Of Analysis (COA)
- Material Safety Data Sheet (MSDS)
- Route of synthesis (ROS)
- Method of Aanlysis (MOA)
- Nuclear Magnetic Resonance (NMR)
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Triethylamine is an alkaline catalyst and neutralizer, widely utilized in organic synthesis for esterification reactions to neutralize acidic by-products generated during esterification reactions, improving efficiency. For the preparation of amides, it helps achieve acid-base balance within its reaction system by reacting with by-products such as hydrogen chloride. These qualities also extend to polymer synthesis where Triethylamine acts as a core catalyst to precisely control foaming speed and cell structure thereby directly impacting final performance of final products.
Triethylamine’s importance to pharmaceutical manufacturing industry can be seen through various key links. Not only it is an integral component for producing antibiotics such as cephalosporin, it serves a dual role as both solvent and alkaline environmental regulator in creating cardiovascular drugs and antiviral medication. Furthermore, it plays an integral part in insecticide and herbicide production as an intermediate compound that builds molecular structures while optimizing reaction paths to further increase purity and yield of final target products.
Triethylamine has proven its worth as an alkaline medium for dye synthesis, aiding molecular modification of complex pigments – especially acidic dyes – during their formation. As an acid regulator and dispersion stabilizer in coating formulation systems, it can helps improve construction performance, storage stability, adhesion strength and durability of coatings directly.
Triethylamine’s popularity as an ingredient of polymeric materials continues to increase, especially its catalytic role in curing processes for epoxy resins and polyurethane materials. By speeding up crosslinking processes and making their cure faster, Triethylamine helps epoxy resin achieve improved mechanical strength and heat resistance, as well as special rubber products which use it in their production as additives for improving elastic modulus properties during vulcanization processes.
Triethylamine has proven its worth as a versatile laboratory chemical. When used as an analytical mobile phase additive for HPLC analysis, Triethylamine significantly improves separation efficiency of nitrogen-containing alkaline compounds. Furthermore, as an organic solvent it plays an indispensable role in synthetic experiments which require anhydrous and anaerobic conditions; specifically suited for metal-organic reactions.
Triethylamine’s development and usage is growing across various industrial fields. Electronics companies use Triethylamine for cleaning and surface treatment of semiconductor materials; new energy companies are exploring its incorporation as an electrolyte conductivity modifier; these innovative applications continue to advance related technologies.
Due to Triethylamine’s wide-ranging applications, its strong irritability, flammability and environmental toxicity require users to abide strictly with operating procedures when handling it. Industrial production should have adequate ventilation systems and protective equipment in place while experimental waste liquid should be professionally disposed. With green chemistry’s expansion into industry research programs, the development of safer alternatives to Triethylamine has become an area of intensive inquiry for researchers.
Triethylamine is an organic base with a pH value of 10.75 that shows excellent catalytic performance for many organic synthesis reactions. As an alkaline catalyst it can promote esterification reactions, amidation reactions and dehalogenations reactions while at the same time effectively neutralizing acidic by-products produced during these reactions, increasing efficiency and yield of their reactions.
2. Excellent Solubility Triethylamine exhibits excellent solubility; not only is it water soluble (112 g/L, 20), but it is also miscible with most organic solvents (ethanol, ether and acetone are among many others). Due to this solubility it makes an ideal solvent in organic synthesis for dissolving numerous compounds while acting as an ideal medium for reaction processes.
3. Versatility Triethylamine can serve not only as a catalyst and solvent, but also as raw material to contribute to the synthesis of various compounds. In medicine it serves as an intermediate in the production of antibiotics (including cephalosporins ), cardiovascular drugs and antiviral medicines while agriculturally it’s often used as pesticides or herbicides synthesis; additionally it’s commonly employed as part of preparation processes of quaternary ammonium salts ion exchange resins surfactants etc.
4. Mild Reaction Conditions
Triethylamine’s many reactions take place under relatively mild conditions. For instance, esterification reactions using Triethylamine as a catalyst have proven highly successful at lower temperatures with little side reactions and enhanced purity in target product output. These mild conditions help limit side reactions while increasing yield efficiency of reactions like these.
5. Easy to Handle and Remove
Triethylamine has a low boiling point of 89.5 deg C, making it easy to remove from a reaction system via distillation – making it particularly helpful when purifying products from organic synthesis reactions.
6. Wide Range of Applications
Triethylamine can be found across many industries, from chemical industry and medicine, agriculture, dyes and coatings production, dyes for clothing production as well as polymer material manufacturing. Chemical applications of Triethylamine include producing polyurethanes and epoxy resins while coating industry uses it as pH regulators and dispersion stabilizers in order to increase performance of coatings.
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Related References:
chemicalbook-Triethylamine
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