Morpholine is an organic chemical compound having the chemical formula O(CH2CH2)2NH. This heterocycle features both amine and ether functional groups. Because of the amine, morpholine is a base; its conjugate acid is called morpholinium. For example, treating morpholine with hydrochloric acid makes the salt morpholinium chloride.
Properties
| Appearance & Physical State: | aqueous solution with a fishlike odor |
|---|---|
| Density: | 0.994 |
| Melting Point: | -5ºC |
| Freezing Point: | -4.9℃ |
| Boiling Point: | 129ºC |
| Flash Point: | 38ºC |
| Refractive Index: | 1.453-1.455 |
| Water Solubility: | MISCIBLE |
| Stability: | Stable. Flammable. Incompatible with strong oxidizing agents, strong acids, acid chlorides, acid anhydrides. Hygroscopic. |
| Storage Condition: | Store at R.T. |
| Vapor Pressure: | 31 mm Hg ( 38 °C) |
| Vapor Density: | 3 (vs air) |
Safety Info
| RTECS: | QD6475000 |
|---|---|
| Hazard Class: | 8 |
| Safety Statements: | S23-S36-S45 |
| HS Code: | 2934999090 |
| Packing Group: | I |
| WGK Germany: | 3 |
| RIDADR: | UN 2054/1760 |
| Risk Statements: | R10; R20/21/22; R34 |
| Hazard Codes: | C |
