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N,N-Dimethylformamide

Name: N,N-Dimethylformamide
SKU: 0

N,N-Dimethylformamide
CAS No.: 68-12-2
Molecular Formula: C3H7NO
Molecular weight: 73.09

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PRODUCT DESCRIPTION

Dimethylformamide is a flammable, colorlessliquid with a fishy, unpleasant, amine-like scent at relativelylow concentrations. The smell threshold is 0.47100 ppm.Molecular weight= 73.11; Specific gravity (H2O:1)= 0.95;Boiling factor = 153℃; Freezing/Melting factor = 261℃;Vapor pressure= three mmHg at 20℃; Flash factor = 58℃;Autoignition temperature= 444.5℃. Explosive limits are:LEL = 2.2%; UEL= 15.2% at 100℃. Hazard Identification(based on NFPA-704 M Rating System): Health 2,Flammability 2, Reactivity zero Soluble in water.Potential Exposure: Tumorigen,Mutagen; Reproductive Effector; Human Data; Hormone,Primary Irritant. DMFA is used as a solvent for liquids,gases, and as a fuel additive. Dimethylformamide haspowerful solvent homes for a broad vary of organiccompounds. Because of its bodily properties, this chemical has been used when solvents with a gradual price of evaporation are required. It finds unique utilization in themanufacture of polyacrylic fibers, butadiene, purified acetylene, pharmaceuticals, dyes, petroleum products, and otherorganic chemicals.

Chemical Properties

Property	Value
Melting point	-61 °C (lit.)
Boiling point	153 °C (lit.)
Alpha	0.94 º
Density	0.944 g/mL (lit.)
Vapor density	2.5 (vs air)
Vapor pressure	2.7 mm Hg ( 20 °C)
Refractive index	n20/D 1.430(lit.)
Fp	136 °F
Storage temp.	Store at +5°C to +30°C.
Solubility	Water: miscible
Pka	-0.44±0.70(Predicted)
Form	Liquid
Color	APHA: ≤15
Relative polarity	0.386
PH	7 (200g/l, H2O, 20℃)
Odor	Faint, ammonia-like odor detectable at 100 ppm
explosive limit	2.2-16%(V)
Odor Threshold	1.8ppm
Water Solubility	Soluble
λmax	λ: 270 nm Amax: 1.00λ: 275 nm Amax: 0.30λ: 295 nm Amax: 0.10λ: 310 nm Amax: 0.05λ: 340-400 nm Amax: 0.01
Sensitive	Hygroscopic
Merck	14,3243
BRN	605365
Exposure limits	NIOSH REL: TWA 10 ppm (30 mg/m3), IDLH 500 ppm; OSHA PEL: TWA 10 ppm; ACGIH TLV: TWA 10 ppm (adopted).
Dielectric constant	36.710000000000001
InChIKey	ZMXDDKWLCZADIW - UHFFFAOYSA - N
LogP	-1.010
CAS DataBase Reference	68-12-2(CAS DataBase Reference)
IARC	2A (Vol. 47, 71, 115) 2018
NIST Chemistry Reference	Formamide, N,N-dimethyl-(68-12-2)
EPA Substance Registry System	N,N-Dimethylformamide (68-12-2)

Safety Information

Property	Value
Hazard Codes	T
Risk Statements	61-20/21-36
Safety Statements	53-45
RIDADR	UN 2265 3/PG 3
OEB	A
OEL	TWA: 10 ppm (30 mg/m3) [skin]
WGK Germany	1
RTECS	LQ2100000
F	3-10
Autoignition Temperature	445 °C
Hazard Note	Toxic
TSCA	Yes
HazardClass	3
PackingGroup	III
HS Code	29241990
Hazardous Substances Data	68-12-2(Hazardous Substances Data)
Toxicity	LD50 in mice, rats (ml/kg): 6.8, 7.6 orally; 6.2, 4.7 i.p. (Bartsch)
IDLA	500 ppm

Product Usage

N,N-Dimethylformamide (DMF) is a versatile high-boiling solvent widely acclaimed as the "universal solvent" due to its exceptional solubility. Its primary application is in the synthetic fiber and resin industry, where it is used to spin polyacrylonitrile fibers and manufacture high-quality synthetic leather (PU). In the pharmaceutical sector, DMF is an indispensable reaction medium for synthesizing vitamins, hormones, and various antibiotics. Additionally, it plays a critical role in the electronics industry for cleaning precision components and in petrochemicals for the selective extraction of acetylene and butadiene.

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