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DIMETHYL FORMAMIDE
MOLECULAR WEIGHT 73.09
BOILING POINT (760 mm Hg),
°C
°F
153
307
FREEZING POINT,
°C
°F
-61
-78
VAPOR PRESSURE, 25 o C(77°F),
mm Hg
psia
kPa
3.7
0.07
0.49
0.8
0.15
1.07
DENSITY,20 °C(68 °F)
g/mL (Mg/m 3
lb/gal
0.949
7.92
VISCOSITY, 25 °C(77 °F),
cP (mPa.s)
0.802
SURFACE TENSION,25 °C(77°F),dyn/cm(mN/m) 35.2
REFRACTIVE INDEX,n D 25 1.4279
HEAT OF VAPORIZATION,150°C(302 °F),
cal/g
Btu/lb
kJ/kg
138
248
577
HEAT OF COMBUSTION (LIQUID DMF TO GASEOUS
CO 2 and N 2 AND LIQUID H 2 O,at 25 °C)
cal/g
Btu/lb
kJ/kg
-6,349
-11,428
-26,565
SPECIFIC HEAT, LIQUID,20°C(68 °F)
cal/g o C(Btu/lb°F)
kJ/kg.K
0.49
2.050
FLASH POINT (TOC),
°C
°F
67
153
(TCC)
°C
°F
58
136
AUTOIGNITION TEMPERATURE,
°C
°F
445
833
FLAMMABILITY LIMITS IN AIR, vol%
LOWER,100°C(212°F)
UPPER,100°C(212°F)
2.2
15.2
CRITICAL TEMPERATURE,
°C
°F
370
698
CRITICAL PRESSURE,
atm
Mpa
43.5
4.41
DIELECTRIC CONSTANT,€,10 kHz, 25 o C(77°F) 36.7
DIPOLE MOMENT, µ,20 o C(68°F),Debye units 3.82
SOLUBILITY PARAMETER, ð 12.1
HYDROGEN-BONDING INDEX, y 6.4
AZEOTROPES,BOILING POINT (760 mm Hg) 69 DMF;
31 FORMIC ACID BY WT,
°C
°F
162
324

 

 



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