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| CAS No.: | 102-71-6 |
| Formula: | C6h15no3 |
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Triethanolamine (TEA)-----------CAS:102-71-6
Product Introduction
Triethanolamine (TEA), the global network number corresponds to its CAS number 102-71-6, and the molecular formula is C6H15NO3 , molecular weight 149.19. This product is an 85% aqueous solution (TEA 85%). Under normal conditions, it is a colorless to pale yellow, transparent, viscous liquid with a slight ammonia odor. It is easily hygroscopic and strongly alkaline. It can be mixed with polar solvents such as water, ethanol, and glycerin in any proportion. The core physical and chemical properties and technical indicators are shown in the following table:
| project | Specific parameters |
|---|---|
| CAS Number | 102-71-6 |
| Appearance (25ºC) | Colorless to light yellow transparent viscous liquid |
| Triethanolamine content | ≥85.0% |
| Monoethanolamine + diethanolamine content | ≤1.0% |
| Moisture content | 14.0%-15.0% |
| pH (1% aqueous solution) | 10.5-11.5 |
| Density (25ºC) | 1.122-1.127 g/cm³ |
| Viscosity (25ºC) | 600-800 mPa·s |
| boiling point | 277ºC (normal pressure) |
| Flash point (closed cup) | ≥179ºC |
| Heavy metals (expressed as Pb) | ≤0.001% |
| Arsenic (As) content | ≤0.0003% |
TEA85% has stable chemical properties and is non-flammable. It can react with acids to form salts and with fatty acids to form soaps. It is a multifunctional additive widely used in industry, daily chemicals, medicine and other fields. It has strong compatibility and can be used in conjunction with most non-oxidizing chemicals.
Applications
Daily chemical industry: Used as a neutralizer and emulsifier in products such as creams, lotions, and shampoos. It neutralizes fatty acids to form surfactants, adjusting the pH to 5.5-7.0 (matching the pH of human skin) to reduce skin irritation. It also improves product stability, prevents delamination, and enhances skin feel and user experience.
Coatings and ink industries: Acts as a pH regulator, cosolvent, and dispersant. Adjusts the pH value of water-based coatings to 8-9, preventing delamination due to excessive acidity. Dissolves acrylic resins, pigments, and other ingredients, improving pigment dispersion uniformity, reducing brush marks, and enhancing coating adhesion and surface gloss.
Metalworking Industry: Used as a rust preventer and corrosion inhibitor, added to metal cutting fluids and cleaning agents. It forms a protective film on the metal surface to prevent oxidation and rust; it neutralizes the acidic substances produced during the cutting process, extending the service life of the cutting fluid and reducing the risk of equipment corrosion.
Textile Industry: Used as a softener and antistatic agent in fabric finishing. It adsorbs on the fiber surface, reduces friction between fibers, and improves the softness and fluffiness of the fabric. It also reduces the surface resistance of the fabric and avoids static electricity. It is suitable for various fiber fabrics such as cotton, polyester, and nylon.
Pharmaceutical and pesticide industries: In the pharmaceutical field, it is used as a pharmaceutical excipient to adjust the pH value of ointments and oral solutions and enhance drug stability; in the pesticide field, it is used as an emulsifier to prepare pesticide emulsifiable concentrates and suspensions, improve the dispersion of pesticides in water, enhance drug efficacy, and reduce pesticide loss and waste.
Shipping methods
TEA85% is a non-hazardous chemical, but due to its weak corrosiveness, it must comply with chemical liquid transportation regulations. The specific transportation methods and requirements are shown in the following table:
| Mode of transportation | Packaging requirements | Precautions |
|---|---|---|
| Road transport | 200L HDPE plastic drum, 1000L IBC container drum | Avoid collision and squeezing of the barrel to prevent leakage; cover the transport vehicle with a rainproof awning to avoid exposure to the sun and rain, and keep away from fire sources |
| Railway transportation | 200L HDPE plastic drum (with reinforced seal on the drum mouth) | Comply with the railway "non-hazardous corrosive chemicals" packaging standards, stacking height ≤ 2 layers to prevent dumping and damage |
| Water transport | 200L HDPE plastic drum, IBC container drum (with anti-corrosion pallet) | Follow the regulations for "common corrosive liquids" in sea/inland waterway transportation, store them separately from acidic goods, and prepare emergency supplies for leakage |
| Air transport | 20L HDPE sealed barrel, single ticket weight ≤50kg | Provide "Non-hazardous Certificate" and safety instructions for corrosive substances, and mark the packaging with the "Anti-corrosion, Handle with Care" logo |
General requirements: The product Material Safety Data Sheet (MSDS) must be carried with the vehicle throughout the transportation process; operators must wear acid and alkali resistant gloves and protective glasses during loading and unloading. Mixing with strong acids (such as hydrochlor ic acid and sulfuri c acid) and strong oxidants (such as hydrogen peroxide and nitr ic acid) is strictly prohibited.
Storage conditions
Environmental requirements: Store in a cool, dry, ventilated, sealed warehouse, avoid direct sunlight, and control the warehouse temperature between 5ºC-30ºC and relative humidity ≤70%. When the temperature is below 21ºC, the product may solidify, which is normal. Melting will not affect the performance.
Packaging management: Keep the lid of the unopened product sealed; tighten the lid immediately after opening. Do not transfer the remaining product to non-corrosion-resistant containers such as iron drums to prevent corrosion of the container and product contamination.
Storage specifications: Product barrels should be placed on corrosion-resistant pallets, at least 20cm away from the ground and walls; stored separately from acidic substances and food-grade raw materials, marked with batch number and storage date, and follow the "first in, first out" principle.
Storage period: If the above conditions are met, the unopened product has a shelf life of 18 months. After opening, it is recommended to use it within 1 month to avoid moisture absorption affecting the concentration.
Quality Standards
This product complies with relevant standards for industrial-grade triethanolamine (such as GB/T 10281-2022). Key indicators are controlled as follows:
Purity: triethanolamine content ≥85%, total impurity (monoethanolamine, diethanolamine) content ≤1%, ensuring stable product performance.
Safety: Heavy metal (Pb) ≤ 0.001%, arsenic (As) ≤ 0.0003%, in line with environmental protection and safety requirements, can be used in non-food contact industrial scenarios.
Safety protection
Operation protection: Wear acid and alkali resistant gloves and protective glasses during operation. If the environment is poorly ventilated, wear a gas mask to avoid inhaling volatile ammonia gas. Eating, drinking and smoking are prohibited in the operation area.
Emergency treatment: After skin contact, immediately rinse with plenty of running water for 10-15 minutes. After eye contact, open the eyelids and rinse continuously with clean water for more than 15 minutes. Seek medical attention if necessary. If accidentally ingested, immediately drink plenty of warm water to induce vomiting and bring the product label to seek medical attention.
Company Profile
Hebei Youlilai New Material Technology Co., Ltd is the first-class chemical and plastic raw materials dealer in the world. We are experts in research and production of detergent raw material coatings, UPR, polyurethane, water treatment products and solvents, etc. We also has TPU, TPE PLA, HDPE, LDPE PP and so on, our company is famous for high quality products and excellent services. Now we are stable supplying our products to more than 200 countries and regions which are located in the Middle East, South America, North America, Southeast Asia, Africa, Europe. We have both the expertiseand geographical advantage to optimize the local resources and provide you with competitiveproducts while minimizing your costs. With decades of experience in chemicals production and trade, We can also be your honest consultant for chemicals in China to provide additional assistance for your business development.
FAQ
1. How should the product be handled after solidification at low temperatures? Does it affect its use?
A: It tends to solidify when the temperature is below 21°C. This is a physical change and does not affect performance. You can move it to a 25°C-30°C environment to melt naturally, or heat it in a warm water bath ≤40°C (direct heating with open flame is prohibited). Once melted, stir well and use normally.
2. Can TEA85% be stored in ordinary plastic barrels for a long time?
A: Not recommended. Ordinary PP plastic barrels can be used for short-term storage (within 1 month), but HDPE plastic barrels are recommended for long-term storage because they are more alkali-resistant, can prevent barrel aging, leakage, and prevent product contamination.
3. What are the risks of the product coming into contact with acidic substances?
A: Contact with strong acids (such as hydrochlori c acid and sulfuri c acid) will cause a violent exothermic reaction, which may cause liquid splashing and container damage. Strict isolation is required during operation. If accidentally contacted, immediately move away and ventilate to cool down. Wait until the temperature stabilizes before properly handling.
4. Can different batches of TEA85% be mixed?
Answer: If the technical indicators between batches (such as content, pH value) meet the standards, they can be mixed and used. Before mixing, it is recommended to take a small amount of sample to test the compatibility, and confirm that there are no abnormal phenomena such as stratification and precipitation before mixing in batches.
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