Typical Physical Properties of DEEA, DMEA, MDEA, NMEA


 N.N-
Diethyl-
ethanolamine
 N.N-
Dimethyl-
ethanolamine
 N-Methyl-diethanolamine N-Methyl-ethanolamine
Structural Formula (CH3CH2)2N-CH2CH2OH (CH3)2N-CH2CH2OH
 CH3N-(CH2CH2OH)2
CH3NH-CH2CH2OH
Molecular Weight
CAS Number
 117.19
100-37-8
 89.14
108-01-0
 119.16
105-59-9
 75.11
109-83-1
Specific Gravity at
20/20°C
Sp.Gr./deltat per °C
0.884
0.00091
0.888
0.00085
1.041
0.00076
0.940
0.00078
Boiling Point, °C at 760 mm Hg 162.1 134.4 247.3 159.6
at 50 mm Hg
at 10 mm Hg		 83.4
51.4		 62.2
32.6		 163.5
128.6		 89.6
60.5
Freezing Point, °C (°F) -78(-108) (1) -59 (-74) -21 (-6) -5 (23)
Solubility, at 20°C
in water
water in
complete
complete
complete
complete
complete
complete
complete
complete
Vapor Pressure, mm Hg at 20°C
 1.3 4.4 <0.01 0.48
Viscosity, cP
at 20°C
at 40°C
5.1
2.2
3.8
2.2
101
33.8
13.0
6.5
Refractive Index, nD, 20°C
 1.4417 1.4296 1.4694 1.4390
Heat of Combustion,
BTU/lb (cal/g) at 25°C
-15,480 (-8600)
-13,900 (-7720)
-12,200 (-6780)
-12,710 (-7060)
Flash Point, °C (°F) 49 (120)(2) 39 (103)(2) 138 (280)(3) 73 (163) (4)

(1) Pour Point
(2) Tag Closed Cup. ASTM Method D56.
(3) Pensky-Martens Closed Cup. ASTM Method D93.
(4) Setaflash Closed Cup. ASTM Method D3278.


NOTE: These properties are typical of the product, but should not be confused with, or regarded as, sales specifications.


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