Tetraethylenepentamine
Tetraethylenepentamine
CAS: 112-57-2
Molecular Formula: C8H23N5
Tetraethylenepentamine - Names and Identifiers
Tetraethylenepentamine - Physico-chemical Properties
| Molecular Formula | C8H23N5 |
| Molar Mass | 189.3 |
| Density | 0.998 g/mL at 25 °C (lit.) |
| Melting Point | -40 °C (lit.) |
| Boling Point | 340 °C |
| Flash Point | 365°F |
| Water Solubility | SOLUBLE |
| Solubility | 6540g/l |
| Vapor Presure | <0.01 mm Hg ( 20 °C) |
| Vapor Density | 6.53 (vs air) |
| Appearance | Liquid |
| Color | Clear |
| BRN | 506966 |
| pKa | pK1:2.98(+5);pK2:4.72(+4);pK3:8.08(+3);pK4:9.10(+2);pK5:9.67(+1) (25°C,) |
| PH | 11.8 (20g/l, H2O, 20℃) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Combustible. Incompatible with strong oxidizing agents, mineral acids, halogenated hydrocarbons, hydrogen peroxide. |
| Sensitive | air sensitive |
| Explosive Limit | 0.1-15%(V) |
| Refractive Index | n20/D 1.505(lit.) |
| Physical and Chemical Properties | Density 0.998 melting point -40°C boiling point 340°C refractive index 1.5055 flash point 139°C water SOLUBLE |
| Use | For synthetic resin, also used as additives, curing agents, accelerators, etc |
Tetraethylenepentamine - Risk and Safety
| Risk Codes | R21/22 - Harmful in contact with skin and if swallowed. R34 - Causes burns R43 - May cause sensitization by skin contact R51/53 - Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37/39 - Wear suitable protective clothing, gloves and eye/face protection. S45 - In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 2320 8/PG 3 |
| WGK Germany | 2 |
| RTECS | KH8585000 |
| FLUKA BRAND F CODES | 21 |
| HS Code | 29212900 |
| Hazard Class | 8 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 3990 mg/kg LD50 dermal Rabbit 660 mg/kg |
Tetraethylenepentamine - Nature
Open Data Verified Data
viscous liquid, with hygroscopic, flammable. Soluble in water and most organic solvents, easy to decompose. The relative density was 0.9980. Melting Point -30 °c. Boiling point 340 °c. The vapor pressure is less than 1. 333Pa (20 °c). Flash point 164 °c. Refractive index 5042.
Last Update：2025-06-10 22:55:16
Tetraethylenepentamine - Preparation Method
Open Data Verified Data
This product is ethylene diamine, diethylenetriamine, triethylenetetramine and polyethylene polyamine products, the production process see diethylenetriamine.
Last Update：2022-01-01 10:35:45
Tetraethylenepentamine - Application
Open Data Verified Data
In addition to can be used as a solvent, mainly for the preparation of epoxy resin room temperature curing agent, oil or lubricating oil additives, crude oil demulsifier, fuel oil detergent dispersant, rubber accelerator, acid gas and solvents for various dyes and resins, saponification agents, hardeners, cyanide-free electroplating plus
Agent, polyamide resin, cation exchange resin and advanced insulating coatings.
Last Update：2025-08-19 16:24:40
Tetraethylenepentamine - Safety
Open Data Verified Data
This product is a strong alkaline, corrosive liquid. Can stimulate the skin, mucous membranes and cause skin allergies and bronchial asthma and other diseases. Long-term exposure can cause leukopenia, lower blood pressure, bronchiectasis, etc. Oral LD50 3.99g/kg. Should avoid direct contact with the human body, splash and skin, quickly rinse with water or boric acid solution, then apply Boric Acid Ointment. Found poisoning, should immediately leave the scene, breathing fresh air or sent to the hospital for treatment.
This product is packaged with 0. 5kg glass bottle, 5kg polyethylene plastic barrel and 200kg iron barrel. This product should be sealed storage, storage should be ventilated, moisture, heat, and acid Isolation. It is advisable to transport by car or train with canopy, and the handling is in accordance with the "railway crisis Regulation No. 96009.
Last Update：2025-06-10 22:55:16
Tetraethylenepentamine - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Use | for synthetic resins, also used as additives, curing agents, accelerator, etc. used for Complexometric titration of copper, zinc and nickel by current end point method, saponification of acidic substances, purification of synthetic rubber and resin gas as dehydrating agent. Also used as additives, curing agents, accelerators, etc. |
| production method | This product is the combined product of ethylene diamine, diethylenetriamine, triethylenetetramine and polyethylenepolyamine, see ethylenediamine for principles of production and operation. However, the temperature of the ammonolysis reaction should be 160~250 ℃, and the pressure should be above 4.0MPa. The crude polyamine was distilled under reduced pressure to collect a fraction at 160 to 210 ° C. Under a pressure of 1.3kPa, and cooled to obtain a final product of tetraethylpentamine. Purification method: dehydrate with sodium metal or anhydrous calcium sulfate, and then perform vacuum fractionation. Alternatively, 95% G of tetraethylenepentamine may be dissolved in mL of ethanol, and of concentrated hydrochloric acid may be gradually dropped under cooling, and the temperature may be kept below 20 °c. The white precipitate was filtered off, recrystallized 3 times from a mixture of ethanol and water, washed with diethyl ether and dried under vacuum to give pure tetraethylenepentamine hydrochloride. |
| category | corrosive article |
| toxicity grade | high toxicity |
| Acute toxicity | abdominal injection-rat LD50: 205 mg/kg |
| stimulation data | Skin-rabbits 5 mg/24 h severe; eye-rabbit 100 mg/24 h moderate |
| explosive hazard characteristics | corrosive to skin and cornea |
| flammability hazard characteristics | flammable; Thermally decomposed toxic nitrogen oxide gas |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from acids and oxidants. |
| fire extinguishing agent | water mist, foam, carbon dioxide, dry powder |
| spontaneous combustion temperature | 610 ° F. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 02:00:04
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Tetraethylenepentamine
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