Tris(2-hydroxypropyl)amine
Tris(2-hydroxypropyl)amine
CAS: 122-20-3
Molecular Formula: C9H21NO3
Tris(2-hydroxypropyl)amine - Names and Identifiers
Tris(2-hydroxypropyl)amine - Physico-chemical Properties
| Molecular Formula | C9H21NO3 |
| Molar Mass | 191.27 |
| Density | 1.0 |
| Melting Point | 48-52 °C (lit.) |
| Boling Point | 190 °C/23 mmHg (lit.) |
| Flash Point | 160 °C |
| Water Solubility | Soluble |
| Solubility | Soluble in water (>1000 mg/ml at 25 °C), ethanol, diethyl ether, chloroform (slightly) |
| Vapor Presure | 1 hPa (100 °C) |
| Appearance | Pale yellow crystal |
| Color | White to slightly yellow |
| BRN | 1071570 |
| pKa | 14.37±0.20(Predicted) |
| PH | 10.8 (100g/l, H2O, 20℃) |
| Storage Condition | Store below +30°C. |
| Sensitive | Hygroscopic |
| Explosive Limit | 0.8-5.8%(V) |
| Refractive Index | 1.4200 (estimate) |
| MDL | MFCD00004533 |
| Physical and Chemical Properties | White crystalline solid, weakly alkaline. |
| Use | It is mainly used in the synthesis of intermediates, as well as as as a chain extender on PU and as a neutralizing agent on daily chemicals. |
Tris(2-hydroxypropyl)amine - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | R36 - Irritating to the eyes R52/53 - Harmful 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. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. |
| UN IDs | UN 3259 8/PG 2 |
| WGK Germany | 1 |
| RTECS | UB8750000 |
| TSCA | Yes |
| HS Code | 2922 19 00 |
| Hazard Class | 8 |
| Packing Group | III |
| Toxicity | LD50 orally in Rabbit: 4000 mg/kg LD50 dermal Rabbit 10000 mg/kg |
Tris(2-hydroxypropyl)amine - Introduction
Soluble in water, soluble in ethanol and ether.
Last Update：2022-10-16 17:12:49
Tris(2-hydroxypropyl)amine - Reference Information
| freezing point | 52 ℃ |
| LogP | -0.015 at 23℃ |
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | used as pharmaceutical raw materials, solvent for photo developer, solvent for paraffin oil in man-made fibers, emulsifier for cosmetics, etc. triisopropanolamine can be used as gas absorbent and antioxidant; Cement industry is used as grinding aid; Fiber industry is used as refining agent, antistatic agent, dyeing aid and fiber wetting agent; Used as antioxidant and plasticizer in lubricating oil and cutting oil; the plastic industry is used as a crosslinking agent; it can also be used as a dispersant for titanium dioxide, minerals, and a curing agent in the polyurethane industry. It is mainly used for the synthesis of intermediates, as a chain extender on PU and as a neutralizing agent on daily chemicals. |
| production method | liquid ammonia and propylene oxide are used as raw materials, water is used as catalyst, materials are prepared according to the molar ratio of liquid ammonia to propylene oxide of 1: 3.00~3.05, deionized water is added at one time, and the dosage ensures that the concentration of ammonia water is 28 ~ 60%; Liquid ammonia and propylene oxide are divided into secondary feeding, and half of the amount of liquid ammonia is added first each time, keep the temperature at 20~50 ℃, then slowly add half of the amount of propylene oxide, fully stir, and keep the pressure in the kettle below 0.5MPa, the reaction temperature is 20~75 ℃, and maintain for 1.0~3.0 hours; After adding propylene oxide, control the temperature of the reaction kettle to 20~120 ℃, make it continue to react for 1.0~3.0 hours, dehydrate under reduced pressure until the water content is less than 5%, and obtain triisopropanolamine product. The method can effectively produce one isopropanolamine and diisopropanolamine, the process is simple, the investment cost is low. |
| spontaneous combustion temperature | 275°C |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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