Chemical Properties |
|
[Appearance]
Morpholine is a colorless liquid with a weak ammonia or fish-like odor. The odor threshold is 0.01 ppm. |
[Melting point ]
-7–5 °C (lit.) |
[Boiling point ]
126.0-130.0 °C 129 °C (lit.) |
[density ]
1.000 g/mL at 20 °C |
[vapor density ]
3 (vs air) |
[vapor pressure ]
31 mm Hg ( 38 °C) |
[refractive index ]
n20/D 1.454(lit.) |
[Fp ]
96 °F |
[storage temp. ]
Store at R.T. |
[solubility ]
water: miscible |
[form ]
Liquid |
[pka]
8.33(at 25℃) |
[color ]
APHA: ≤15 |
[Specific Gravity]
0.996 |
[PH]
11.2 (H2O)(undiluted) |
[Stability:]
Stable. Flammable. Incompatible with strong oxidizing agents, strong acids, acid chlorides, acid anhydrides. Hygroscopic. |
[explosive limit]
1.4-15.2%(V) |
[Water Solubility ]
MISCIBLE |
[FreezingPoint ]
-4.9℃ |
[Sensitive ]
Hygroscopic |
[Merck ]
14,6277 |
[Detection Methods]
GC |
[BRN ]
102549 |
[Exposure limits]
TLV-TWA 20 ppm (~70 mg/m3) (ACGIH, MSHA, and OSHA); STEL skin 30 ppm (ACGIH); IDLH 8000 ppm. |
[InChIKey]
YNAVUWVOSKDBBP-UHFFFAOYSA-N |
[Uses]
Rubber accelerator, solvent, additive to boilerwater, waxes and polishes, optical brightener fordetergents, corrosion inhibitor, preservation of bookpaper, organic intermediate (catalyst, antioxidants,pharmaceuticals, bactericides, etc.). |
[CAS DataBase Reference]
110-91-8(CAS DataBase Reference) |
[NIST Chemistry Reference]
Morpholine(110-91-8) |
[IARC]
3 (Vol. 47, 71) 1999 |
[EPA Substance Registry System]
110-91-8(EPA Substance) |