2-(2-hydroxyethoxy)ethanaminium
2-(2-Aminoethoxy)ethanol
CAS: 929-06-6
Molecular Formula: C4H11NO2
2-(2-hydroxyethoxy)ethanaminium - Names and Identifiers
| Name | 2-(2-Aminoethoxy)ethanol |
| Synonyms | DGA Diglycolamine Aminoethoxyethanol 2-(2-Aminoethoxy)ethanol 1-(2-aminoethoxy)ethanol Ethanol, 2-(2-aminoethoxy)- 2-(2-hydroxyethoxy)ethanaminium O-(2-Hydroxyethyl)ethanolamine DGA 2-(2-AMINOETHOXY)ETHANOL FOR SYNTHESIS Diethylene GlycolamineDiglycolamineEthylene Glycol Mono(2-aminoethyl) EtherO-(2-Hydroxyethyl)ethanolamine |
| CAS | 929-06-6 |
| EINECS | 213-195-4 |
| InChI | InChI=1/C4H11NO2/c1-4(6)7-3-2-5/h4,6H,2-3,5H2,1H3 |
| InChIKey | GIAFURWZWWWBQT-UHFFFAOYSA-N |
2-(2-hydroxyethoxy)ethanaminium - Physico-chemical Properties
| Molecular Formula | C4H11NO2 |
| Molar Mass | 105.14 |
| Density | 1.05 |
| Melting Point | -12.5 °C |
| Boling Point | 218-224°C(lit.) |
| Flash Point | >230°F |
| Water Solubility | miscible |
| Vapor Presure | <0.1 hPa (20 °C) |
| Appearance | Crystalline Powder and or Chunks |
| Color | Yellow |
| BRN | 906728 |
| pKa | 14.37±0.10(Predicted) |
| PH | 10.2 (10g/l, H2O, 20℃) |
| Storage Condition | Store below +30°C. |
| Stability | Stable. Incompatible with acids, strong oxidizing agents. Reacts with carbon dioxide. |
| Sensitive | Air Sensitive |
| Explosive Limit | 2.0-15.5%(V) |
| Refractive Index | n20/D 1.460 |
| Physical and Chemical Properties | Diethylene glycol amine is an important polyurethane foam catalyst, its catalytic production of polyurethane foam has the characteristics of low odor, can produce rigid packaging foam, high rebound foam, widely used in automobiles, household appliances and other fields. In addition, diglycolamine is a widely used pharmaceutical intermediate preparation reactant and has been used to prepare TD-4306. |
2-(2-hydroxyethoxy)ethanaminium - Risk and Safety
| Hazard Symbols | C - Corrosive |
| Risk Codes | R21 - Harmful in contact with skin R34 - Causes burns |
| 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.) S24/25 - Avoid contact with skin and eyes. |
| UN IDs | UN 3055 8/PG 3 |
| WGK Germany | 1 |
| RTECS | KJ6125000 |
| FLUKA BRAND F CODES | 10-34 |
| TSCA | Yes |
| HS Code | 29221980 |
| Hazard Class | 8 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 3000 mg/kg LD50 dermal Rabbit > 3000 mg/kg |
2-(2-hydroxyethoxy)ethanaminium - Reference Information
| LogP | -1.89 at 25℃ |
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| Introduction | diethylene glycol Amine, also known as 2-(2-aminoethoxy) ethanol, molecular formula C4H11NO2, colorless syrup-like liquid, is an important solvent and organic raw materials, can dissolve with water, can dissolve aromatic hydrocarbons and absorption of acid gases (H2S and CO2). |
| Application | diethylene glycol amine is mainly used as absorbent of acid gas, surfactant and wetting agent, desulfurizing agent, and can also be used as raw material of polymer, it is widely used in metals, electronics, medicine and other industries. |
| preparation | the method of synthesizing diethylene glycol amine by diethylene glycol low pressure method is as follows: 1, first, replace the air in the reactor with nitrogen, and then continuously introduce the preheated hydrogen into the reactor, so that the temperature of the catalyst in the reactor rises to 180-240 ℃, and the pressure in the reactor rises to 1.60-1.75MPa;2, after the liquid ammonia is vaporized, it is mixed with hydrogen to obtain a mixed gas, and the mixed gas is preheated to 240-280 ° C.; 3. The diethylene glycol and the soft water are mixed to obtain a mixed solution, and the mixed solution is preheated to 230-280 ° C. 4, the mixture gas after preheating in step 2 and the mixture liquid after preheating in step 3 are sent to the reactor of step 1, in the presence of catalyst at 1.60-1.75MPa, gas-liquid phase catalytic amination reaction (continuous reaction) is carried out at 180-240 ℃ to obtain crude product, which is cooled and then gas and liquid are separated by gas-liquid separator, the main components of the gas are hydrogen and ammonia, which can be recycled; The liquid is crude diethylene glycol Amine, and the content of diethylene glycol amine in the crude diethylene glycol amine is about 35%, which is then sent to the separation and refining system. Because of less side reactions, the purity of the purified diethylene glycol amine is greater than or equal to 99%. |
| category | corrosive article |
| toxicity grade | poisoning |
| Acute toxicity | oral-rat LD50: 3000 mg/kg; Oral-mouse LD50: 2825 mg/kg |
| stimulation data | Skin-rabbits 10 mg/24 h severe; eye-rabbit 0.050 mg/24 h severe |
| flammability hazard characteristics | flammable; Thermal decomposition of toxic NOx fumes |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored separately from acid and oxidant |
| fire extinguishing agent | water, dry powder, carbon dioxide, alcohol-resistant foam |
| spontaneous combustion temperature | 370°C |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 19:05:15
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