N,N-Dimethylformamide
Iupac Name N,N-dimethylformamide
CAS No. 68-12-2
Molecular Weight 73.09378
EINECS(EC#)200-679-5
Molecular Formula C3H7NO
Introduction: Dimethylformamide is an organic solvent for vinylres ins and acetylene, butadiene and acid gases. Itcaused contact dermatitis in a technician at an epoxyresin manufacturers, and can provoke alcohol-inducedflushing in exposed subjects.
Storage
DMF should be used only in areas free of ignition sources, and quantities greater than 1 liter should be stored in tightly sealed metal containers in areas separate from oxidizers.
Usage
N,N-Dimethylformamide (DMF) is a clear liquid that has been widely used in industries as a solvent, an additive, or an intermediate because of its extensive miscibility with water and most common organic solvents.Dimethylformamide is primarily used as an industrial solvent.
Dimethylformamide (DMF) is a clear, colorless, hygroscopic liquid with a slight amine odor. The solvent properties of DMF are particularly attractive because of the high dielectric constant, the aprotic nature of the solvent, its wide liquid range and low volatility. It is frequently used for chemical reactions and other applications, which require a high solvency power. The product is known as a universal solvent. The high solubility of polyacrylonitrile in DMF, together with the good miscibility of DMF in water makes DMF the preferred solvent to produce acrylic fibers. Also, the spinning of polyurethane based elastomers is performed from DMF based solutions. Another significant application is the use of DMF as a solvent for polyurethane-based coatings on leather and artificial leather fabrics.
Application: It is used in the chemical industry as a solvent, an intermediate, and an additive; for example, in the production of pharmaceuticals, synthetic fibers, resins, agrochemicals, petrochemical industry etc.
Melting point -46 �°C
Boiling point 209-210 �°C(lit.)
density 0.806 g/mL at 25 �°C(lit.)
vapor pressure 12.4Pa at 20�ºC
refractive index n20/D 1.4359(lit.)
Fp 165 �°F
storage temp. Sealed in dry,Room Temperature
solubility miscible
form Liquid
pka 10.07�±0.28(Predicted)
color Clear colorless to yellow
Water Solubility miscible
LogP 1.99 at 23�ºC
Melting point -46 C
Boiling point 209-210 C(lit.)
density 0.806 g/mL at 25 C(lit.)
vapor pressure 12.4Pa at 20 C
refractive index n20/D 1.4359(lit.)
Fp 165 F
storage temp. Sealed in dry,Room Temperature
solubility miscible
form Liquid
pka 10.07 0.28(Predicted)
color Clear colorless to yellow
Water Solubility miscible
LogP 1.99 at 23 C
1.Usage: N, N-dimethylformamide (DMF) is widely used as drug solvent. N, N-dimethylformamide is a dipole prophilic solvent with physical and chemical properties, so it is suitable for capillary electrophoresis (CE) solvent.
N,N- dimethyl acetamide is a clear colorless liquid, flammable. Can be mixed with water, alcohol, ether, ester, benzene, and aromatic compounds and other organic solvents. The boiling point of 166 �ºC. Freezing point -20 �ºC. Relative density 0.9366. Refractive index 1.4380. Flash point 70�ºC (open cup).
Dimethylacetamide, the full name is N,N-dimethylacetamide (chemical formula: CH3C(O)N(CH3)2 abbreviated as DMAC or DMA. A commonly used aprotic polar solvent. Colorless Transparent liquid, flammable. Can be freely mixed with organic solvents such as water, alcohol, ether, ester, benzene, and aromatic compounds. Used in the preparation of drugs, synthetic resins, and also used as a solvent for polyacrylonitrile spinning and carbon Extractive distillation solvent for the separation of styrene in eight fractions, etc.
N-heptane is an organic compound with a chemical formula of C7H16. It is a colorless, transparent and volatile liquid, insoluble in water, soluble in ethanol and carbon tetrachloride, and miscible in ether, chloroform, acetone, and benzene. It is mainly used as Standards and solvents for determination of octane number can also be used in the preparation of organic synthesis and experimental reagents.
N-(n-butyl)-thiophosphoricTriamide(NBPT)
Urease inhibitors can inhibit the activity ofsoil urease, which can inhibit and slownitrogen release. The use of soil ureaseinhibitors can effectively slow down theprocess of urea decomposition intoammonia, reduce the concentration ofNH4+ and NH3 in the soil, reduce waste,and at the same time Extend the diffusiontime of nitrogen fertilizer at thefertilization point, so that the fertilizersupply of the soil and the fertilizerdemand of the crop are synchronizedThereby increasing the effective utilizationrate of nitrogen fertilizer by 30%-40%.
Item Specification
Appearance White cystalline solids or white powder
Content 97%min
Melting point 57-60 C
Flashing point 96 C
Boiling point 277.4 C(760 mm Hg)
Density 4.3 g/L at 25 C
Loss on drying 1.0% max
