Dimethylformamide

Alternative names DMF Reference codes CAS number UN number

68 122 2265

Hazchem code EPA code

2P

Physical properties Molecular weight Empirical formula Boiling point (OC) Freezing point (OC) Specific gravity (20/4)

73 C3H 7N 101 153 -61 0.945

Cubic expansion coeff (per °C x 103) Surface tension (@20°C dyn/cm) Absolute viscosity (@25°C cP) Refractive index (25°C)

1.03 35 0.82 1.427

Fire hazards Flash point (closed cup °C) Autoignition temperature (OC) Electrical conductivity

62 445 6.0E-8

Lower explosive limit (ppm) Upperexplosive limit (ppm)

22000 160000

Health hazards IDLH (ppm) ES-TWA OES-STEL Odour threshold (ppm)

3500 10 20 100

Vapour concentration @21°C ppm Vapour density (relative to air) Vapour pressure @21°C mmHg POCP

3700 2.53 3.8

°

Aqueous effluent Solubility in water (25°C %w/w) Solubility of water in (25°C %w/w) Logl O activated carbon partition Log l O partition in octanol/water (w/w) Biological oxygen demand w/w (days) Theoretical oxygen demand w/w Vapour pressure equation constants (Log10, mmHg) Antoine equation A B C Cox chart A B Solventproperties Solubility parameter Dipole (D) Dielectric constant (20°C) Polarity (water 100) Thermal information Latent heat (caIImol) Nett heat of combustion (kcal/grnol) Specific heat (cal/mol/oC) Critical pressure (MN/m2 ) CriticaI ternperature (K) Latent heat of fusion (cal/mol) Van der Waals' volume Van der Waals' surface area Molar volume

12.1 3.8 36.7 40.4

Total Total -0.74 0.9 1.86

7.10850 1537.78 210.390

Kauri butanol value Evaporation time (ether = 1) Evaporation time (BuAc = 1)

120 0.17

10074 423 36 4.48 647 3.09 2.74 77.43 Miscellaneous solvents

246

Dimethylformamide (X)

Azeotrope X% Solute Hydrocarbons n-Pentane n-Hexane n-Heptane n-Octane n-Nonane n-Decane 2,2,4-TMP Cyclohexane Benzene Toluene Ethylbenzene Xylenes Cg Aromatics Tetra Iin Alcohols Methanol Ethanol n-Propanol i-Propanol n-Butanol i-Butanol s-Butanol n-Amyl alc. i-Amyl ale. Cyclohexanol 1-0ctanol Ethanediol DEG 1,2-Propanediol

w/w

5

None None 15 20

None None

°C

Reference

97

5893 5893a 134 136

5894

Solute 1

Reference

12.8 17.2 8.3 18.6 22.0 25.3 30.1 5.4 1.2 2.0 2.2 2.7

lX/1/58 6c/332 6X/98 lX/1/61 1X/3/1005 1X/3/1005 1X/1/61 1X/l/59 lX/1/59 lX/1/60 lX/3/l003 7/481

0.6 0.6

2a/115 2c/371

1.2 1.0

2f/527 2b/8

0.9

8/265 0.29 8/117

Partition coefficient

Glycol ethers PGME EGME EEE EGBE Chlorinated MOC Chloroform Carbon tel. 1,2-EDC l,l,l-TCA TCE Perk. MCB Miscellaneous solvents

1.8

0.4

0.04 0.02

Reference

Dimethylformamide (X)

247

Azeotrope

X%

Solute

w/w

°C Reference

Ketones Acetone MEK MIBK Cyclohexanone NMP Acetophenone Ethers Diethyl ether· DIPE Dibutyl ether MTBE 1,4-Dioxane THF Esters Me acetate Et acetate i-Propyl acetate n-Butyl acetate Cellosolve acetate Miscellaneous DMF DMAc DMSO Sulfolane CS2 Acetic acid Aniline Nitrobenzene Morpholine Pyridine 2-Nitropropane Acetonitrile Furfuraldehyde Phenol Water

-

-

Solute ~

Reference

0.9 1.3

3+4/164 3b/289

1.2

3b/500

1.3

3+4/454

1.6

1x/3/999

-

-

1.2

8/407

4.4

1x/1/57

0.3

8/428

1.08

1/276

Partition coefficient

Reference

-

-

Azeo

None None

2765

Miscellaneous solvents