Melting point :-7--5 °C (lit.)
Boiling point :126.0-130.0 °C 129 °C (lit.)
Density :0.996 g/mL at 25 °C (lit.)
vapor density :3 (vs air)
vapor pressure :31 mm Hg ( 38 °C)
refractive index :n20/D 1.454(lit.)
Flash point :96 °F
storage temp. :Store below +30°C.
solubility :water: miscible
form :Liquid
pka :8.33(at 25℃)
color :APHA: ≤15
Specific Gravity :0.996
PH :11.2 (H2O)(undiluted)
Odor :Characteristic amine-like odor
explosive limit :1.4-15.2%(V)
Water Solubility :MISCIBLE
FreezingPoint :-4.9℃
Sensitive :Hygroscopic
Merck :14,6277
BRN :102549
Exposure limits :TLV-TWA 20 ppm (～70 mg/m³) (ACGIH, MSHA, and OSHA); STEL skin 30 ppm (ACGIH); IDLH 8000 ppm.
Dielectric constant :7.3（25℃）
Stability :Stable. Flammable. Incompatible with strong oxidizing agents, strong acids, acid chlorides, acid anhydrides. Hygroscopic.
InChIKey :YNAVUWVOSKDBBP-UHFFFAOYSA-N
LogP :-0.860
CAS DataBase Reference :110-91-8(CAS DataBase Reference)
IARC :3 (Vol. 47, 71) 1999
NIST Chemistry Reference :Morpholine(110-91-8)
EPA Substance Registry System :Morpholine (110-91-8)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H226 Flammable liquid and vapour Flammable liquids Category 3 Warning H311 Toxic in contact with skin Acute toxicity,dermal Category 3 Danger P280, P302+P352, P312, P322, P361,P363, P405, P501 H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.