516.4 °F at 760 mmHg (Decomposes) (NTP, 1992)
268.8 °C
BP: 217 °C at 150 mm Hg; 20 °C at 0.01 mm Hg
268.80 °C. @ 760.00 mm Hg
269 °C
Density
1.095 at 82.4 °F (USCG, 1999) - Denser than water; will sink
1.0966 at 20 °C
Relative density (water = 1): 1.09 (liquid)
1.1
1.10
Physical Description
Diethanolamine appears as oily colorless liquid or solid white crystals. Slight rotten fish or ammonia odor. Denser than water. (USCG, 1999)
Pellets or Large Crystals; Liquid
Colorless crystals or a syrupy, white liquid (above 82 degrees F) with a mild, ammonia-like odor; [NIOSH] Deliquescent; [CHEMINFO]
Solid
WHITE CRYSTALS OR COLOURLESS VISCOUS HYGROSCOPIC LIQUID WITH CHARACTERISTIC ODOUR.
Appearance
A faintly colored, viscous liquid or deliquescent prisms
Deliquescent prisms. Usually offered as a viscous liquid
Colorless crystals or a syrupy, white liquid (above 82 °F)