N,N-Dimethylformamide - Materials / Alfa Chemistry

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N,N-Dimethylformamide

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Catalog Number

ACMA00017034

Product Name

N,N-Dimethylformamide

Category

Polymers

Description

N,n-dimethylformamide appears as a water-white liquid with a faint fishy odor. Flash point 136°F. Slightly less dense than water. Vapors heavier than air. Toxic by inhalation or skin absorption. May irritate eyes.;Liquid;Liquid;COLOURLESS-TO-YELLOW LIQUID WITH CHARACTERISTIC ODOUR.;Colorless to pale-yellow liquid with a faint, amine-like odor.;Colorless to pale-yellow liquid with a faint, amine-like odor.

IUPAC Name

N,N-dimethylformamide

Molecular Weight

73.09g/mol

Molecular Formula

C3H7NO;HCON(CH3)2;C3H7NO

Canonical SMILES

CN(C)C=O

InChI

InChI=1S/C3H7NO/c1-4(2)3-5/h3H,1-2H3

InChI Key

ZMXDDKWLCZADIW-UHFFFAOYSA-N

Boiling Point

300 to 313 °F at 760 mm Hg (NTP, 1992);153.0 °C;152.8 °C;153 °C;307°F;307°F

Melting Point

-78 °F (NTP, 1992);-60.4 °C;-60.3 °C;-60.4°C;-61 °C;-78°F;-78°F

Flash Point

153 °F (NTP, 1992);67 °C (open cup); 58 °C (Closed cup);136 °F (58 °C);58 °C c.c.;136°F;136°F

Density

0.95 at 68 °F (USCG, 1999);0.9445 at 25 °C/4 °C;Relative density (water = 1): 0.95;0.95;0.95

Solubility

greater than or equal to 100 mg/mL at 72° F (NTP, 1992);13.68 M;Miscible with water and most common organic solvents;Miscible with ethanol, ethyl ether, acetone, benzene; slightly soluble in ligroin;1000000 mg/L at 25 °C;Solubility in water: miscible;Miscible

Color/Form

Colorless to very slightly yellow liquid;Water-white liquid

Complexity

33.9

Corrosivity

Pure dimethylformamide is essentially noncorrosive to metals. However, copper, tin and their alloys should be avoided.

Covalently-Bonded Unit Count

EC Number

200-679-5

Exact Mass

73.052764g/mol

Formal Charge

Heat of Vaporization

47.6 kJ/mole at 25 °C

Heavy Atom Count

ICSC Number

0457

Log P

-1.01 (LogP);log Kow = -1.01;-1.01;-0.87

MeSH Entry Terms

Dimethylformamide;N,N Dimethylformamide;N,N-dimethylformamide

Monoisotopic Mass

73.052764g/mol

NSC Number

5356

Odor

Fishy odor;Faint, amine-like odor

Other Experimental

N,N-Dimethylformamide is adipolar aprotic solvent.;BP: 76 °C at 39 mm Hg; 25 °C at 3.7 mm Hg;Saturated concentration in air: 12 g/cu m @ 20 °C;Hygroscopic liquid that forms azeotropes with ortho-, meta- and para-xylenes, formic acid and tetrachloroethylene.;Gases such as acetylene, butadiene, isoprene, sulfur dioxide and hydrochloric acid are soluble in DMF; ammonia, carbon monoxide and dioxide, oxygen and hydrogen are only sparingly soluble.;Dipole moment: 12.7X10-30 C.m at 20 °C;Henry's Law constant = 7.39X10-8 atm-cu m/mole at 25 °C;Hydroxyl radical reaction rate constant = 1/75X10-11 cu cm/molec-sec at 25 °C (est)

Refractive Index

Index of refraction: 1.42083 at 25 °C/D;Index of refraction: 1.4305 at 20 °C/D

Rotatable Bond Count

RTECS Number

LQ2100000

Stability

DMF is stable. It is hygroscopic and easily absorbs water form a humid atmosphere and should therefore be kept under dry nitrogen. High purity DMF, required for acrylic fibers, is best stored in aluminum tanks. DMF dose not change under light or oxygen and does not polymerize spontaneously. Temperatures >350 °C may cause decomposition to form dimethylamine and carbon dioxide, with pressure developing in closed containers.

UNII

8696NH0Y2X

UN Number

2265;2265;2265;2265;2265

Vapor Density

2.51 (NTP, 1992) (Relative to Air);2.51 (Air= 1);Relative vapor density (air = 1): 2.5;2.51

Vapor Pressure

3.7 mm Hg at 77 °F ; 2.7 mm Hg at 68° F (NTP, 1992);3.87 mmHg;3.87 mm Hg at 25 °C;Vapor pressure, kPa at 25 °C: 0.49;3 mmHg;3 mmHg

Viscosity

0.802 cP at 25 °C;0.85 mm2/s at 25 °C

XLogP3

-1